-
Kenji Furuya, Yuko Hirowatari, Toshio Ishioka, Akira Harata
2007 Volume 36 Issue 9 Pages
1088-1089
Published: September 05, 2007
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Gas–liquid interface discharge at atmospheric pressure above HAuCl
4 solutions containing no protective agents generates triangular and hexagonal nanoplates and nanorods of gold. Experimental results under several different conditions indicate that the plates and rods rapidly grow on the surface of the solution. In contrast, the spherical nanoparticles slowly grow in the solution.
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Huiqin Ling, Qun Liu, Chengkang Chang, Dali Mao
2007 Volume 36 Issue 9 Pages
1090-1091
Published: September 05, 2007
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Single-crystalline CaSiO
3 nanobelts were prepared via a simple solvothermal routine. The synthesized material revealed bioactive response when immersed in a simulated body fluid (SBF) solution, suggesting its potential application as biomedical materials.
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Hidekazu Fujita, Tatsuya Uchida, Ryo Irie, Tsutomu Katsuki
2007 Volume 36 Issue 9 Pages
1092-1093
Published: September 05, 2007
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Ru(salalen)(CO)
2 complexes were found to serve as catalysts for asymmetric sulfimidation under irradiation, and high enantioselectivity (up to 90% ee) was obtained. In addition, the structures of two Ru(salalen)(CO)
2 complexes that carry the ligands of the same configuration but induce opposite asymmetry to each other, were determined by X-ray diffraction analysis.
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Yong-Jun Liu, Mami Aizawa, Wen-Qin Peng, Zheng-Ming Wang, Hiroaki Hato ...
2007 Volume 36 Issue 9 Pages
1094-1095
Published: September 05, 2007
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A controlled procedure leads to formation of pure anatase nanoparticles from titanium alkoxide near room temperature, without using any organic solvent by the peroxotitanic acid approach. The nanoparticles are highly mesoporous, with the surface covered by peroxo groups, and have excellent photodecomposition activity as compared to those prepared from ordinary procedures.
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Yukihiro Yoshida, Hirofusa Tanaka, Gunzi Saito
2007 Volume 36 Issue 9 Pages
1096-1097
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A series of genuine organic paramagnetic ionic liquids were prepared utilizing 2,2,6,6-tetramethyl-1-piperidinyloxyl-4-sulfate (TEMPO-OSO
3) anion with
S=1⁄2 radical spin. Their static susceptibilities and EPR spectra can be explained in terms of the paramagnetic spins on the TEMPO radical moieties, although they have much low fluidities and ionic conductivities.
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Yong Zhu, Yubai Pan, Heng Xu, Changshu Xiang, Huamin Kou, Jingkun Guo
2007 Volume 36 Issue 9 Pages
1098-1099
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Supplementary material
The pristine multiwalled carbon nanotubes (MWCNTs) without oxidation or covalent decoration were homogeneously coated with silica through a simple modified sol–gel method.
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Kenta Goto, Teruo Shinmyozu
2007 Volume 36 Issue 9 Pages
1100-1101
Published: September 05, 2007
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Supplementary material
Crystals of 4-methylamino-6-oxopyrimidine (
1) grown from aqueous alcohol were found to contain 2D water layers consisting of hexameric water clusters with alternating quasi-planar and chair conformations, which are apparently regulated by interactions with the supramolecular aggregate of
1n through hydrogen bonds.
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Eigo Miyazaki, Yasushi Morita, Yumi Yakiyama, Suguru Maki, Yoshikazu U ...
2007 Volume 36 Issue 9 Pages
1102-1103
Published: September 05, 2007
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Supplementary material
A tetrathiafulvalene (TTF) derivative with a cytosine moiety was designed and synthesized as a bi-functional molecule with both electron-donating and proton-accepting abilities. In the crystal of I
3− salt, TTF–cytosine dyad formed a hemiprotonated dimer through triple hydrogen-bonds with radical cationic state of the TTF moieties.
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Fenghua Bai, Haiquan Su, Fei Chang
2007 Volume 36 Issue 9 Pages
1104-1105
Published: September 05, 2007
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Supplementary material
A dimeric [Ce(acac)
3(acacH)
2] (acacH = acetylacetone) complex has been synthesized. The crystal structure showed that the complex contains intramolecular H-bond and intermolecular H-bond formed through the neutral enol acetylacetone unidentate ligands.
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Biswanath Das, Anjoy Majhi, Nikhil Chowdhury, Kongara Ravinder Reddy, ...
2007 Volume 36 Issue 9 Pages
1106-1107
Published: September 05, 2007
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Supplementary material
An efficient one-pot three-component reactions of aldehydes, ketones, and benzyl carbamate in the presence of a catalytic amount of (bromodimethyl)sulfonium bromide have been accomplished in short reaction time to afford the corresponding Cbz-protected β-amino ketones in high yields and good diastereoselectivity.
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Takahiro Yamamoto, Isa Nishiyama, Hiroshi Yokoyama
2007 Volume 36 Issue 9 Pages
1108-1109
Published: September 05, 2007
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Supplementary material
A novel dichiral azobenzene compound which shows two kinds of highly ordered liquid-crystalline phases was prepared. One of the mesophases was found, by miscibility studies, to be a chirality-induced three-dimensional (3D) liquid crystal phase. We, for the first time demonstrate the photoinduced phase transition of the liquid-crystalline 3D structure.
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Pankaj Gupta, Subhash C. Taneja, Bhahwal A. Shah, Vijay K. Sethi, Ghul ...
2007 Volume 36 Issue 9 Pages
1110-1111
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The substrate/lipase ratio as well as pH of the buffer medium played important roles in the resolution of geometrical isomeric mixture of geraniol–nerol. Based on the results, an immobilized lipase from
Pseudomonas fluorescens (PFL) was found effective in selective transesterifications whereas
Pseudomonas sp.
Lipase (PSL) was found to be useful in hydrolyzing the esters.
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Yuki Shibano, Mikio Sasaki, Yutaka Kawanishi, Yasuyuki Araki, Hayato T ...
2007 Volume 36 Issue 9 Pages
1112-1113
Published: September 05, 2007
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Supplementary material
We have synthesized the diphenyldisilane-linked zinc porphyrin–free-base porphyrin dyad
ZnP–[Si2]–H2P and measured its photophysical properties. These measurements indicate that energy transfer from the ZnP to the H
2P moiety occurs at the rate constant of 9.5×10
9 s
−1. The silicon–silicon bond is found to effectively mediate the singlet excited energy transfer.
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Sou Miyata, Kazukiyo Nagai
2007 Volume 36 Issue 9 Pages
1114-1115
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The linear fluorine-contained polyimide macroinitiator capped with the chloromethylphenyl group at both polymer ends was synthesized and reacted with methyl methacrylate (MMA) to form an ABA-type triblock copolymer (MMA-
b-PI-
b-MMA) by atom-transfer radical polymerization (ATRP). The poly(methyl methacrylate) (PMMA) homopolymer was decomposed completely at ca. 400 °C, whereas the polyimide macroinitiator was thermally stable up to ca. 500 °C The MMA component in MMA-
b-PI-
b-MMA was selectively decomposed up to ca. 400 °C, while the polyimide component remained.
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Ryuta Ishikawa, Md. Khayrul Kabir, Keiichi Adachi, Koichi Nozaki, Sato ...
2007 Volume 36 Issue 9 Pages
1116-1117
Published: September 05, 2007
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Supplementary material
[Ru(bpy)
2(CA)]·EtOH (
1) (CA
2− = chloranilate) has been characterized by X-ray diffractometry, electrochemistry, UV–vis, IR, and Raman spectroscopy. Spectroscopic and theoretical characterization reveal that the chloranilate ligand allows for the fine-tuning of the electronic property of
1.
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Shyamaprosad Goswami, Annada C. Maity
2007 Volume 36 Issue 9 Pages
1118-1119
Published: September 05, 2007
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Supplementary material
One-step microwave-assisted oxidative removal of 3-methyl and 3-sugar side chain in 2(1
H)-quinoxalinone system by selenium dioxide and sodium periodate respectively resulting 2(1
H)-quinoxalinone has been reported. Similarly xanthopterin (as acetyl derivative
11) was isolated from selenium dioxide oxidation of 7-methylxanthopterin. In the absence of adjacent lactam moiety, sodium periodate efficiently oxidizes 2-acetylaminopterin tetrols
7 and
8 to 2-acetylamino-6-formylpterin (
16) and the quinoxaline tetrols
9 and
10 respectively to quinoxaline aldehyde
17. However, all the compounds remained unchanged on refluxing with selenium dioxide. The new quinoxalone compounds
15 and
18 were simply synthesized by manganese dioxide oxidation of the completely unprotected 3-substituted sugar of 2(1
H)-quinoxalinone
5 and quinoxaline
10 respectively under microwave condition.
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Yusuke Yamauchi, Kin-ya Akiba, Hiromi Nakai
2007 Volume 36 Issue 9 Pages
1120-1121
Published: September 05, 2007
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Supplementary material
The energy of a 10–S–3 hypervalent, i.e., N–S–N, bond was theoretically determined to be 60.6 kcal/mol using bond energy density analysis with the density functional theory. Upon rotation of the pyrimidine ring of a sulfurane compound, the hypervalent bond is broken. The total energy of the system changes by 15.7 kcal/mol. The broken N–S bond is destabilized by 56.5 kcal/mol, while another is stabilized by 44.2 kcal/mol. The results support previous experimental data.
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Keiichi Katoh, Takahiro Sasamori, Norihiro Tokitoh, Naoki Sato
2007 Volume 36 Issue 9 Pages
1122-1123
Published: September 05, 2007
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Supplementary material
We have synthesized a donor-type ligand
1a–
1f containing a 1,3-dithiol ring as the donor site and an
N,
N,
N-tridentate ligand for metal complexation. In the crystal phase, the planar
1a molecules stack along the
b axis in the “head-to-tail” fashion. The Fe
II complex
2 shows typical paramagnetic behavior.
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Kaidong Han, Youjin Zhang, Zhiyong Fang, Tao Cheng, Minrui Gao
2007 Volume 36 Issue 9 Pages
1124-1125
Published: September 05, 2007
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Supplementary material
Large scale, uniform Er
2O
3 microspheres have been prepared with CO(NH
2)
2 as the precipitant through a hydrothermal method. The obtained products were characterized by X-ray powder diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and field-emission scanning electron microscopy. The Er
2O
3 microspheres are composed of nanoparticles, and the diameter is in the range of 200–300 nm. In addition, a possible formation mechanism of Er
2O
3 microspheres was discussed.
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Mariko Tono-oka, Hideyuki Nakayama, Kikujiro Ishii
2007 Volume 36 Issue 9 Pages
1126-1127
Published: September 05, 2007
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Gibbs-energy difference between the gauche and trans isomers of 1,2-dichloroethane (DCE) in liquid and supercritical (SC) CO
2 was investigated using Raman spectroscopy. The gauche isomer was relatively stabilized in these solvents compared with in non-polar organic solvents. This was attributed to the interaction of the dipolar gauche isomer with the quadrupole moment of the CO
2 molecule, as well as the local density enhancement in SC CO
2. Conformation equilibrium of DCE was suggested to be useful as a probe for studying solvent properties of SC fluids.
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Naohisa Yanagihara, Naoto Abe, Hironori Takama, Yuichiro Shimamura, Ma ...
2007 Volume 36 Issue 9 Pages
1128-1129
Published: September 05, 2007
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Nylon-6 and nylon-6,6 were subjected to oxidative degradation with NO
2 in supercritical CO
2. It was found that valuable short-chain α,ω-diacid mixture could be obtained in good yield under relatively mild conditions.
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Yoshifumi Kimura, Hiroshi Takata, Masahide Terazima, Tetsuo Ogawa, Sei ...
2007 Volume 36 Issue 9 Pages
1130-1131
Published: September 05, 2007
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Gold nanoparticles have been prepared by the laser ablation of a gold plate in imidazolium-based ionic liquids. The size and stability of gold nanoparticles were dependent on the wavelength of the laser light and the alkyl-chain length of the imidazolium-based cation.
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Hui Wang, Xiaoqing Qiu, Liping Li, Guangshe Li
2007 Volume 36 Issue 9 Pages
1132-1133
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Pure tetragonal ZrO
2 nanocrystals were prepared at low temperature (85 °C). Their proton conductivity measured at 80 °C in N
2 is 5.63×10
−5 S/cm which is one order of magnitude higher than that of 1.72×10
−6 S/cm for the sulfated counterpart or of 4.17×10
−6 S/cm reported in the literature for 3-nm crystals of ZrO
2·
nH
2O.
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Hiroharu Ajiro, Junji Watanabe, Mitsuru Akashi
2007 Volume 36 Issue 9 Pages
1134-1135
Published: September 05, 2007
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Supplementary material
The amphiphilic aprotic vinyl monomer,
N-vinylacetamide (NVA), was firstly employed to fabricate double network (DN) hydrogels in water at 37 °C. Although
N,
N-methylenebisacrylamide as a crosslinker did not form hydrogels, novel crosslinker which is based on the structure of NVA was effective in creating first and second network hydrogels. DN structures of nonionic NVA hydrogels will expand the pool of various functional hydrogels, as well as give rise to stronger NVA hydrogel preparations.
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Tohru Takei, Takato Ii, Jiro Kawashima, Tetsushi Ohmura, Masao Ichikaw ...
2007 Volume 36 Issue 9 Pages
1136-1137
Published: September 05, 2007
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A three-dimensional (3-D) cobalt coordination polymer Co(BDC)(DABCO)
1⁄2 (BDC = 1,4-benzenedicarboxylate; DABCO = 1,4-diazabicyclo[2.2.2]octane), which has a novel lantern-type structure, was synthesized and characterized by X-ray powder diffraction patterns and elemental analysis. In addition, hydrogen-adsorption characteristics were evaluated at 77 K. The highest measured hydrogen uptake was 2.28 wt % at 77 K and 0.1 MPa for Co(BDC)(DABCO)
1⁄2.
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Surasak Seesukphronrarak, Toshikazu Takata
2007 Volume 36 Issue 9 Pages
1138-1139
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A 9-silafluorene-containing biphenolic monomer, 9,9-bis(4-hydroxyphenyl)-9-silafluorene, was prepared from 9,9-dichloro-9-silafluorene and employed for the synthesis of polyesters using a fluorene-based homoditopic acid chloride. Some properties of the polyesters were examined.
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Genki Nakamura, Kaori Narimatsu, Yasuro Niidome, Naotoshi Nakashima
2007 Volume 36 Issue 9 Pages
1140-1141
Published: September 05, 2007
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Supplementary material
We describe the finding that green tea and catechins individually dissolve single-walled carbon nanotubes (SWNTs). UV–visible–near-IR absorption, photoluminescence, Raman spectroscopy, and atomic force microscopy were used to characterize the solubilized aqueous nanotube solutions.
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Jing Shi, Lei Liu, Jing He, Xiangming Meng, Qingxiang Guo
2007 Volume 36 Issue 9 Pages
1142-1143
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New derivatives of the pyridyloxazole-type fluorophore were synthesized in high efficiency through click chemistry. This method is potentially useful for the combinatory screening of fluorescent labels to target specific biological processes. Using this method, we successfully developed three new ratiometric dual-fluorescent pH sensors.
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Bin Xing, Wan-wan Li, Hong-jing Dou, Peng-fei Zhang, Kang Sun
2007 Volume 36 Issue 9 Pages
1144-1145
Published: September 05, 2007
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High-quality cadmium selenide (CdSe) quantum dots (QDs) with good thermal stability were prepared by using liquid paraffin as a solvent and oleic acid as a ligand under relative low temperatures. Moreover, the as-prepared CdSe quantum dots were embedded into the porous polystyrene (PS) beads to fabricate optically encoded beads, which suggests their promising application in multiplexed bioassays.
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Atsushi Shishido, Makoto Ishiguro, Tomiki Ikeda
2007 Volume 36 Issue 9 Pages
1146-1147
Published: September 05, 2007
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Bragg-type polarization holograms were recorded in thick copolymer films with tolane and azobenzene moieties by interfering two orthogonal circularly polarized beams at 488 nm. Observation of the films with a polarizing optical microscope revealed that circular alignment of molecules was induced along a grating vector. An incident reading beam at 633 nm was efficiently diffracted, depending on its polarization state and incident direction.
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Fumio Mizutani, Eiji Ohta, Yasuhiro Mie, Osamu Niwa
2007 Volume 36 Issue 9 Pages
1148-1149
Published: September 05, 2007
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Enhanced sensitivity of hydrogen peroxide was performed by accumulating the charge through oxidation of [Os(bpy)
2]
2+ (bpy = bipyridyl) into [Os(bpy)]
3+ in a peroxidase-containing polymer layer on an electrode under the open-circuit condition and then reduced by applying negative potential. The accumulation resulted in a large current response, and the lower detection limit for hydrogen peroxide and that for glucose oxidase, a hydrogen peroxide-producing enzyme, were 0.1 nM and 2×10
−4 U L
−1, respectively.
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Mory Laye Keita, Tomohiro Mizuhara, Juzo Oyamada, Tsugio Kitamura
2007 Volume 36 Issue 9 Pages
1150-1151
Published: September 05, 2007
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Platinum-catalyzed hydroarylation of alkynes was applied to thiophenes. Reaction of thiophenes with ethyl propiolate in trifluoroacetic acid in the presence of a K
2PtCl
4/AgOTf catalyst gave bis(substituted thienyl)propionates in good yields. The same Pt-catalyzed reaction with propiolic acid proceeded efficiently to provide bis(substituted thienyl)propionic acids in high yields.
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Chen Ma, Yan Ren, Qun Zhang, Kai Ding, Jun Zhao, Dongju Zhang
2007 Volume 36 Issue 9 Pages
1152-1153
Published: September 05, 2007
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A Sonogashira coupling–1,3-dipolar cycloaddition sequence of a (hetero)arenecarbonyl chloride
1, a terminal alkyne
2, and a suitable quinolinium bromide
3 or isoquinolinium bromide
4 was carried out in ionic liquid on the basis of a consecutive one-pot three-component process. Optimization of ionic liquid and recycling of the catalyst were discussed.
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Kiyotaka Mitsumoto, Satoshi Koizumi, Takuya Shiga, Hiroyuki Nishikawa, ...
2007 Volume 36 Issue 9 Pages
1154-1155
Published: September 05, 2007
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Supplementary material
Tetranuclear cubic complexes of [Co
4(heip)
4(MeOH)
4] (
1) and [Co
4(heip)
4(nit-
p-py)
4] (
2) (H
2heip = 1,1,1,5,5,5-hexafluoro-4-[(2-hydroxyethyl)imino]-2-pentanone and nit-
p-py = 2-(
p-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) were prepared. Complexes
1 and
2 have alkoxo-bridged cubic core structures. Magnetic susceptibility measurements revealed the occurrence of ferromagnetic interactions among Co
II ions in
1, while antiferromagnetic interactions were operative in
2.
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Ji Young Jeon, Tae Jin Park, Woo Sik Jeon, Jung Joo Park, Jin Jang, Ja ...
2007 Volume 36 Issue 9 Pages
1156-1157
Published: September 05, 2007
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We have developed novel bipolar host materials for high efficiency green phosphorescent OLEDs (PHOLEDs). Phenyl moieties were inserted in a 9,9′-(biphenyl-4,4′-diyl)dicarbazole (CBP) compound to provide much easier electron injection and to increase electron mobility. The efficiency increase and voltage reduction by this modification were observed in green PHOLEDs. At a given constant luminance of 1000 cd/m
2, the power efficiency was enhanced about twenty percent in the general green PHOLED devices.
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Kazunori Takanashi, Vladimir Ya. Lee, Masaaki Ichinohe, Akira Sekiguch ...
2007 Volume 36 Issue 9 Pages
1158-1159
Published: September 05, 2007
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1,2,5,6-Tetrasilabenzobenzvalene, a valence isomer of 1,2,3,4-tetrasilanaphthalene, was synthesized and structurally characterized by the coupling reaction of the dipotassium salt of the tetrasilacyclobutadiene dianion with
o-dibromobenzene. The 1,2,5,6-tetrasilabenzobenzvalene was presumably obtained by the isomerization of the initially formed 1,2,3,4-tetrasilabenzo-1,4-Dewar benzene.
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Hyeon-Gu Jeon, Sen-ichi Ryo, Teruki Sugiyama, Isamu Oh, Hiroshi Masuha ...
2007 Volume 36 Issue 9 Pages
1160-1161
Published: September 05, 2007
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We have proposed and demonstrated a new methodology for fabricating an interpenetrating network nanostructure toward a highly efficient organic solar cell, utilizing a C60 nanoparticle assembly film on an electrode prepared by electrophoretic deposition (EPD) of its nanoparticle colloid.
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Yoichiro Kuninobu, Peng Yu, Kazuhiko Takai
2007 Volume 36 Issue 9 Pages
1162-1163
Published: September 05, 2007
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Supplementary material
Treatment of norbornenes with internal and terminal acetylenes in the presence of a catalytic amount of [ReBr(CO)
3(thf)]
2 gave cyclobutene derivatives in good to excellent yields.
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Seiya Tsujimura, Tomohiko Abo, Yoshitaka Ano, Kazunobu Matsushita, Ken ...
2007 Volume 36 Issue 9 Pages
1164-1165
Published: September 05, 2007
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Direct electron-transfer-type bioelectrocatalytic oxidation of
D-gluconate is studied with
D-gluconate dehydrogenase (GADH, EC 1.1.99.3, from
Gluconobacter frateurii) at indium tin oxide electrodes. The adsorbed GADH gives a surface-redox wave attributable to the heme
c site in the absence of the substrate and clear catalytic oxidation current in the presence of the substrate. The enzyme kinetics, the surface electron transfer kinetics, and the adsorption characteristics of GADH have been analyzed by voltammetry and quartz crystal microbalance measurements.
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Ryoichi Ishimatsu, Naoya Nishi, Takashi Kakiuchi
2007 Volume 36 Issue 9 Pages
1166-1167
Published: September 05, 2007
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Wide polarized potential windows against interfacial ion transfer are available at the interface between a hydrophobic ionic liquid (IL), tetraheptylammonium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate ([THpA
+][TFPB
−]) and an aqueous electrolyte solution (W) of MgSO
4. The width of the potential window, 1.1 V at 60 °C, enables electrochemical studies of charge transfer at the IL/W interface for a variety of ions and redox couples.
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Hiroshi Hiratsuka, Hiroaki Horiuchi, Yuki Takanoha, Hiroshi Matsumoto, ...
2007 Volume 36 Issue 9 Pages
1168-1169
Published: September 05, 2007
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Diphenyldisilane derivative having electron-donating and -withdrawing groups in each phenyl group, 1-(4-cyanophenyl)-2-(4-methoxyphenyl)-1,1,2,2-tetramethyldisilane was synthesized, and its excited-state property was studied. Intramolecular charge-transfer character through the disilanyl group was confirmed; the dipole moment of the excited-state has been estimated to be 28 debye.
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Kossi E. Bere, Yoshito Wakui, Shu-ichi Niwa, Hiroshi Shoji, Koichi Sat ...
2007 Volume 36 Issue 9 Pages
1170-1171
Published: September 05, 2007
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Supplementary material
A novel membrane reactor process using porous α-Al
2O
3 tube loaded with silver–strontium catalyst realized direct O
2 epoxidation of propylene with notable selectivity of propylene oxide. Segregated feed of propylene and O
2 combined with facile permeation of reactants and products across the membrane was essentially important for the membrane epoxidation process.
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Amanda V. Ellis, Mark R. Waterland, Jamie Quinton
2007 Volume 36 Issue 9 Pages
1172-1173
Published: September 05, 2007
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Supplementary material
Acyl chloride groups on carbon nanotubes are reacted with a magnesium chloride dithiopropanoate salt to create novel carbon nanotube chain-transfer agents (CNT-CTAs) for potential use in reversible addition–fragmentation chain-transfer (RAFT) polymerizations.
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Takeshi Hashimoto, Yuji Kawamoto, Yousuke Ishitobi, Tatsuya Sasaki, Yu ...
2007 Volume 36 Issue 9 Pages
1174-1175
Published: September 05, 2007
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Supplementary material
Symmetric alkoxide-bridged diruthenium complexes [{Ru(acac)
2}
2(μ-OMe)
2], which are obtained when [Ru(acac)
2(CH
3CN)
2] reacts in methanol, can be separated into two diastereomers by column chromatography, and these diastereomers are found to exhibit different magnetic properties despite their structural similarities.
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Lassi Karvonen, Samuli Räsänen, Hisao Yamauchi, Maarit Karpp ...
2007 Volume 36 Issue 9 Pages
1176-1177
Published: September 05, 2007
Released on J-STAGE: August 25, 2007
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Various chemical oxidants were investigated for their capability to oxidize brownmillerite SrCoO
2.5 to perovskite SrCoO
3−δ. Among the oxidants tested, KMnO
4/HCl was found to be the strongest to yield SrCoO
3−δ with δ≈0.06.
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Ping Yan, Yuan Fang Li, Cheng Zhi Huang
2007 Volume 36 Issue 9 Pages
1178-1179
Published: September 05, 2007
Released on J-STAGE: August 29, 2007
JOURNAL
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In this contribution, a resonance light-scattering (RLS) detection method is proposed for the measurements of oscillating reaction with H
2O
2–KSCN–CuSO
4–NaOH close system as an example. The seasonal change of oscillating chemical reactions concerning the particle size is examined, and the qualitative analytical information could be obtained from this straightforward and expeditious approach.
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Son Thanh Phan, Wataru Setaka, Mitsuo Kira
2007 Volume 36 Issue 9 Pages
1180-1181
Published: September 05, 2007
Released on J-STAGE: August 29, 2007
JOURNAL
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Supplementary material
Disilacycloalkadienes with bridged halophenylene rings have been successfully synthesized via ring-closing metathesis reactions. Molecular structures of these macrocycles were fully characterized by NMR spectroscopies and X-ray crystallography. The Sonogashira coupling reactions of the macrocycles with phenylacetylene did not proceed probably owing to severe steric hindrance during the reactions.
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Yong Liu, Yi Zhang, Tiejun Wang, Noritatsu Tsubaki
2007 Volume 36 Issue 9 Pages
1182-1183
Published: September 05, 2007
Released on J-STAGE: August 29, 2007
JOURNAL
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By employing a new low-temperature process for methanol synthesis, high activity of methanol production from CO
2 hydrogenation was achieved at 443 K and 5 MPa in a slurry-phase reactor over the copper catalysts prepared by an oxalate-gel coprecipitation (OC) method.
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Ko Yoneda, Masaaki Ohba, Takuya Shiga, Hiroki Oshio, Susumu Kitagawa
2007 Volume 36 Issue 9 Pages
1184-1185
Published: September 05, 2007
Released on J-STAGE: August 29, 2007
JOURNAL
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Supplementary material
Two novel coordination polymers, [M(L)(MeOH)
2]
n (M
II = Ni, Co; H
2L =
E,
E-muconic acid) having 3-D pillared-layer structure based on 2-D grid sheet extended by syn–anti-type carboxylate-bridges were prepared and Ni
II compound showed a ferromagnetic ordering at 1.7 K.
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