Nihon Kessho Gakkaishi

Cover

2010Volume 52Issue 3 Pages Cover03
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.Cover03

JOURNAL FREE ACCESS

Download PDF (153K)
Contents

2010Volume 52Issue 3 Pages Index03
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.Index03

JOURNAL FREE ACCESS

Download PDF (166K)

Review Articles

Dynamical Structure Analysis of Crystalline-State Reaction and Elucidation of Chemical Reactivity in Crystalline Environment

Yuji OHASHI

2010Volume 52Issue 3 Pages 149-157
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.149

JOURNAL FREE ACCESS

Show abstractHide abstract

It was found that a chiral alkyl group bonded to the cobalt atom in a cobalt complex crystal was racemized with retention of the single crystal form on exposure to visible light. Such reactions, which are called crystalline-state reactions, have been found in a variety of cobalt complex crystals. The concept of reaction cavity was introduced to explain the reaction rate quantitatively and the chirality of the photo-product. The new diffractometers and detectors were made for rapid data collection. The reaction mechanism was also elucidated using neutron diffraction analysis. The unstable reaction intermediates were analyzed using cryo-trapping method. The excited-state structures were obtained at the equilibrium state between ground and excited states.

View full abstract

Download PDF (985K)
Development of Methodologies for Structure Determination of Biological Macromolecular Assemblies Using Synchrotron Radiation and Its Applications

Atsushi NAKAGAWA

2010Volume 52Issue 3 Pages 158-165
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.158

JOURNAL FREE ACCESS

Show abstractHide abstract

Synchrotron radiation contributed to the recent progress in protein crystallography. High brilliance and small divergence synchrotron radiation X-ray beam is indispensable to collect diffraction data from crystals of biological macromolecular assemblies. Recent advance on methodologies and technologies on protein crystallography including synchrotron radiation allows us to solve huge biological macromolecular assemblies, such as large virus particles.

View full abstract

Download PDF (1655K)
AXS-RMC Analysis for Structural Characterization for Disordered Materials

Kazumasa SUGIYAMA

2010Volume 52Issue 3 Pages 166-173
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.166

JOURNAL FREE ACCESS

Show abstractHide abstract

The anomalous X-ray scattering (AXS) coupled with a model calculation using reverse Monte Carlo (RMC) simulation, has recently received much attention for analyzing the detailed structure for disordered materials. The usefulness of this advanced AXS-RMC method is demonstrated with some selected examples of molten AgBr, Zr₅₀Cu₅₀ metallic glass and Zr₇₀Pd₃₀ metallic glass.

View full abstract

Download PDF (1809K)
Structural and Functional Analyses of the Proteins Involved in the Iron-Sulfur Cluster Biosynthesis

Kei WADA

2010Volume 52Issue 3 Pages 174-183
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.174

JOURNAL FREE ACCESS

Show abstractHide abstract

The iron-sulfur (Fe-S) clusters are ubiquitous prosthetic groups that are required to maintain such fundamental life processes as respiratory chain, photosynthesis and the regulation of gene expression. Assembly of intracellular Fe-S cluster requires the sophisticated biosynthetic systems called ISC and SUF machineries. To shed light on the molecular mechanism of Fe-S cluster assembly mediated by SUF machinery, several structures of the SUF components and their sub-complex were determined. The structural findings together with biochemical characterization of the core-complex (SufB-SufC-SufD complex) have led me to propose a working model for the cluster biosynthesis in the SUF machinery.

View full abstract

Download PDF (3097K)

Article

Electrostatic Potential Analysis Using Convergent-Beam Electron Diffraction

Kenji TSUDA

2010Volume 52Issue 3 Pages 184-189
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.184

JOURNAL FREE ACCESS

Show abstractHide abstract

A nanoscale structure analysis method using convergent-beam electron diffraction (CBED) is described, which enables us to directly determine electrostatic potential. Applications of the method to crystalline silicon and spinel oxide FeCr₂O₄ are presented.

View full abstract

Download PDF (1359K)

Book Review

Takashiro AKITSU

2010Volume 52Issue 3 Pages Book03
Published: June 30, 2009
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.Book03

JOURNAL FREE ACCESS

Download PDF (247K)
Crystallite

2010Volume 52Issue 3 Pages 192
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.192

JOURNAL FREE ACCESS

Download PDF (142K)
CrSJ News

2010Volume 52Issue 3 Pages News03
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.News03

JOURNAL FREE ACCESS

Download PDF (446K)
Announcement

2010Volume 52Issue 3 Pages Annc03
Published: June 30, 2010
Released on J-STAGE: February 25, 2011

DOIhttps://doi.org/10.5940/jcrsj.52.Annc03

JOURNAL FREE ACCESS

Download PDF (98K)

Register with J-STAGE for free!