The crystal structure of a benzyltrimethylammonium chloride complex with rac-1,1′-bi-2-naphthol has been determined by an X-ray diffraction technique. It crystallizes in the triclinic space group P-1, with unit-cell parameters of a = 9.9157(1)Å, b = 10.1069(1)Å, c = 13.5253(2)Å, α = 78.6034(5)°, β = 69.6790(5)°, γ = 89.5945(5)°, V = 1243.24(3)ų, and Z = 2. The crystal packing mode is achieved by means of weak intermolecular interactions, and indicate the relevance of weak H-bonds in molecular phenomena

A μ-phenolato-μ-oxido-bridged dinuclear manganese(III) complex with 2-(5-nitro-2-hydroxyphenyl)-1,3-bis(2-(5-nitro-2-hydroxybenzylideneamino)ethyl)imidazolidine (H₃L_NO2) was synthesized. The crystal structure was determined by the single-crystal X-ray diffraction method at 90 K. The complex crystallized as [(C₂H₅)₃NH][Mn₂(μ-L_NO2)(μ-O)Cl₂]·2THF in the orthorhombic space group Pnma with a = 15.052(3), b = 20.449(4), c = 14.700(3)Å, V = 4524.5(16)ų, D_calcd = 1.518 g/cm³, Z = 4. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0713 and 0.1700, respectively, for all 5336 independent reflections. The two manganese(III) atoms are bridged by a phenolato-oxygen atom of L_NO2³⁻ and a μ-oxido-oxygen atom, where each manganese(III) atom is further coordinated by phenolato-oxygen, imino- and imidazolidine-nitrogen atoms of L_NO2³⁻ in a meridional fashion and a chlorido ligand to form a distorted octahedral geometry.

The benzyltriethylammonium bromide binds with rac-1,1′-binaphthalene-2,2′-diol through O–H···Br and C–H···O interactions. The bulky benzyltriethylammonium cation groups exhibit a strained anti arrangement in the void constructed by the self assembly of rac-1,1′-binaphthalene-2,2′-diol only. It crystallizes in monoclinic space group P2₁/n, with unit-cell parameters of; a = 10.8109(10)Å, b = 10.3081(10)Å, c = 25.2697(3)Å, α = 90°, β = 98.2242(3)°, γ = 90°, V = 2787.09(5)ų, and Z = 4.

A dinuclear manganese(III) complex with 2-(5-nitro-2-hydroxyphenyl)-1,3-bis(2-(5-nitro-2-hydroxybenzylideneamino)ethyl)imidazolidine (H₃L_NO2) was synthesized. The crystal structure was determined by the single-crystal X-ray diffraction method at 90 K. The complex crystallized as [(C₂H₅)₃NH][Mn₂(μ-L_NO2)(μ-O)Br₂]·2THF in the orthorhombic space group Pnma with a = 14.890(2), b = 20.903(3), c = 14.7765(19)Å, V = 4599.3(11)ų, D_calcd = 1.621 g/cm³, Z = 4. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0539 and 0.1260, respectively, for all 5416 independent reflections. The two manganese(III) atoms are bridged by a phenolato-oxygen atom of L_NO2³⁻ and a μ-oxido-oxygen atom, where each manganese(III) atom is further coordinated by phenolato-oxygen, imino- and imidazolidine-nitrogen atoms of L_NO2³⁻ in a meridional fashion and a bromido ligand to form a distorted octahedral geometry.

The structure of the dinuclear Co(II, III) mixed-valence complex [Co^IICo^III(tpdb)(CH₃CO₂)(CH₃O)](ClO₄)₂·​0.75CH₃OH·0.25CH₃CN (1) was determined by X-ray crystallography, where tpdb is N,N,N′,N′-tetrakis(2-pyridylmethyl)-1,4-diamino-2-butanolate. The compound crystallizes in the monoclinic space group, P2₁/c, with a = 10.4372(4), b = 27.8578(10), c = 13.5496(5)Å, β = 102.8116(10), Z = 4, V = 3841.6(2)ų. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0398 and 0.1035, respectively, for all 6799 independent reflections. The complex has a (μ-acetato)bis(μ-alkoxo)dicobalt(II, III) core structure.

The crystal structure of [1¹,1⁴,1⁷,1¹⁰,5¹,5⁴,5⁷,5¹⁰-octaaza-1,5(1,4)-dicyclododecana-3,7(1,3)-dibenzenacyclooctaphane]zinc(II) tetrakis(nitrate), [m,m-bis(Zn^II-cyclen)](NO₃)₄·4H₂O was determined by the single-crystal X-ray diffraction method at 93.15 K. The titled complex crystallized in the trigonal space group P3₁21 and Z = 3 with a = 8.97880(10), c = 44.4258(6)Å, and V = 3101.72(8)ų. The R₁ [I > 2σ(I)] and wR₂ (all data) values were 0.0250 and 0.0623, respectively, for all 3323 independent reflections. In the crystal structure, the Zn^II center is coordinated with two secondary amines, two tertiary amines, and nitrate to form a square pyramidal geometry. Two nitrate anions were coordinated with the respective Zn^II. The hydrogen bond network between the nitrate anion and water connects each m,m-bis(Zn^II-cyclen) complex.

The crystal structure of the title compound, 4-(2-phenyldiazenyl)-2-[(phenylimino)methyl]phenol, was determined to be an orthorhombic system, Pna2₁, with cell parameters a = 18.351(4)Å, b = 17.574(4)Å, c = 4.5721(9)Å, V = 1474.5(5)ų, Z = 4, at 173 K. It was a polymorphism of the previously reported monoclinic system measured at 293 K. This orthorhombic molecule took a more planar shape than the monoclinic one, and did not exhibit intramolecular hydrogen bonds in the crystal.

The crystal structure of an inclusion complex of benzyltrimethylammonium bromide with (R)-(+)-1,1′-binaphthalene-2,2′-diol has been determined by X-ray crystallography techniques. It is stabilized by strong and weak H-bonds, and crystallizes in the monoclinic space group P2₁ with unit-cell parameters of; a = 10.5345(10)Å, b = 9.90380(10)Å, c = 12.7437(10)Å, α = 90°, β = 104.1165(4)°, γ = 90°, V = 1289.42(2)ų, and Z = 2. The benzyltrimethylammonium bromide molecule serves as space filler of the cage built by the rigid (R)-(+)-1,1′-binaphthalene-2,2′-diol molecules in an inclusion phenomenon.

The structure of 1,3-diphenyl-2,3-dihydro-1H-benzo[d][1,3]dithiole-1,3-dinium bis(tetrafluoroborate) acetonitrile solvate (1) was determined by X-ray crystallography. It crystallizes in the space group P1 (#2) with cell parameters a = 8.3368(2)Å, b = 8.9193(2)Å, c = 16.7407(4)Å, α = 79.659(2)°, β = 77.822(2)°, γ = 78.551(2)°, Z = 2, and 1180.22(5)ų. The R1(I > 2σ(I)) and wR2 (all data) values are 0.0770 and 0.2579, respectively. The structure of 1 consists of [C₁₉H₁₆S₂]²⁺ and 2BF₄⁻ ion pair with CH₃CN. Intermolecular C–H···F, C–H···N interactions, S···F, C···F contacts were observed in the crystal lattice.

The crystal structure of a pseudo-tetrahedral zinc(II) complex with a 2-(2-imidazolinyl)-6-methoxy phenolate ligand was determined by X-ray crystallography. The title compound was synthesized by a reaction of ZnCl₂ and 2-(2-imidazolinyl)-6-methoxyphenolate in methanol. The compound crystallizes in the monoclinic space group P2₁/c and Z= 4 with cell parameters a = 14.6485(5)Å, b = 19.2428(6)Å, c = 7.5851(3)Å, β = 104.253(4)°, V = 2072.26(13)ų. The R₁ [I > 2σ(I)] and wR₂ (all data) values are 0.0304 and 0.0833, respectively, for all 4597 independent reflections. The title compound was found to take the bis-bidentate coordination mode. Intermolecular hydrogen-bonds were formed between the complexes to form a dimeric structure. Furthermore, hydrogen-bonds were formed between the dimer and a methanal molecule of crystallization to construct one-dimensional chain networks.

The tetrabutylammonium chloride complex with rac-1,1′-bi-2-naphthol crystallizes in monoclinic space group P2₁/n, with unit-cell parameters of; a = 10.4941(1)Å, b = 26.3302(3)Å, c = 11.5290(1)Å, α = 90°, β = 100.0154(5)°, γ = 90 °, V = 3137.05(5)ų, and Z = 4. The packing mode, hydrogen bonding network, and crystal data suggest that the crystal structure is isomorphous with the reported structure of a tetrabutylammonium bromide complex with rac-1,1′-bi-2-naphthol.²

The structure of a dinuclear copper(I) complex, [Cu₂I₂(dma-acd)₂] (dma-acd = 3,6-bis(dimethylamino)acridine), was determine by X-ray crystallography. The compound crystallizes in a monoclinic system and was characterized thus: P2₁/n, a = 9.1930(5), b = 15.2507(7), c = 11.8959(5)Å, β = 95.749(5)°, Z = 4, V = 1659.41(14)ų. The crystal structure was solved by direct methods and refined by full-matrix least-squares on F² to final values of R₁ = 0.0279 [I > 2σ(I)] and wR₂ = 0.0719 (all data).

The crystal structure of the salt [dihydrido-hexaphenylcarbodiphosphoran][chlorid][trichlorido-triphenylphosphino-platinat] was determined by X-ray crystallography. The title compound crystallizes in the monoclinic space group with the cell parameters a = 38.858(3)Å, b = 10.851(1)Å, c = 27.666(2)Å, α = 90°, β = 109.07(1)°, γ = 90°, V = 11025(2)ų, Z = 8. The crystal structure was solved by direct methods and refined by full-matrix least-squares on F² to final values of R1 = 0.0771 and wR2 (all data)= 0.1732, T = 100(2)K.

A dinuclear copper(II) carboxylate with 2,4,5-trimethoxybenzoic acid (H245-tmbz), tetrakis(μ-2,4,5-trimethoxybenzoato-κO:κO′)bis[(methanol)copper(II)]-N,N-dimethylformamide (1/2), [Cu₂(245-tmbz)₄(CH₃OH)₂]·2dmf (dmf = N,N-dimethylformamide), was prepared. The crystal structure was determined by the single-crystal X-ray diffraction method at 90 K. It crystallizes in the triclinic space group, P1, with a = 11.2532(13)Å, b = 11.6634(13)Å, c = 12.3118(14)Å, α = 65.354(2)°, β = 65.025(2)°, γ = 72.661(2)°, V = 1316.7(3)ų, D_x = 1.491 g/cm³, and Z = 1. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0328 and 0.0846, respectively, for all 6035 independent reflections. The unit cell contains a μ-syn-syn-benzoato-bridged dinuclear cluster (Cu···Cu 2.5847(5)Å) with apical methanol molecules, which are hydrogen bonded to the crystal dmf molecules. Adsorption isotherm measurement showed the Type II adsorption property with an S_BET of 4.7 m² g⁻¹ for N₂.

A tetrapentylammonium chloride complex with rac-1,1′-bi-2-naphthol entraps solvent (acetonitrile) molecules during crystallization. It crystallizes in monoclinic space group P2₁/n, with unit-cell parameters of; a = 13.5728(2)Å, b = 21.5734(3)Å, c = 14.1231(2)Å, β = 109.2852(7)°, V = 3903.35(10)ų, and Z = 4. Conformational adjustments occur in the binaphthol molecule, and the alkyl chains of tetrapentylammonium chloride due to size of the counter anion, and the solvent in the hydrogen-bonded binaphthol cavity. The structure is stabilized by, Coulombic interaction, strong and weak H-bonds.

A hexanuclear Mn^II₂Mn^III₄ complex with 2-(5-nitro-2-hydroxyphenyl)-1,3-bis(2-(5-nitro-2-hydroxybenzylideneamino)ethyl)imidazolidine (H₃L_NO2) and its hydrolyzed ligand, 1,10-bis(5-nitrosalicylideneamino)-4,7-azadecane (H₂L_NO2′), was isolated. The crystal structure was determined by the single-crystal X-ray diffraction method at 90 K. The complex crystallized as [{Mn₃(μ₃-O)(μ-CH₃COO)₂(μ-L_NO2)}₂(L_NO2′)]·2.5THF·CH₃OH in the monoclinic space group C2/c with a = 21.253(3), b = 16.630(2), c = 29.508(4)Å, β = 93.147(2)°, V = 10413(2)ų, D_calcd = 1.551 g/cm³, Z = 4. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0836 and 0.2500, respectively, for all 11924 independent reflections. The complex is a hexanuclear manganese molecule which has a crystallographic inversion center at the midpoint of the ethylenediamine backbone of L_NO2′²⁻ ligand. In the asymmetric unit, three manganese atoms (Mn1, Mn2, and Mn3) are arranged in a μ₃-oxido-centered triangle, and the Mn1 and Mn2 atoms are further bridged by a phenolato-oxygen atom of L_NO2³⁻, and both of the Mn1 and Mn3 atoms and the Mn2 and Mn3 atoms are further bridged by an acetato ligand in a syn-syn mode. The charge balance and a bond valence sum calculation supported the mixed-valent Mn^II₂Mn^III₄ state with the Mn^II state for the Mn1 atom and the Mn^III state for the Mn2 and Mn3 atoms, respectively.

The structure of the reaction product of boric acid, chloral hydrate, and potassium carbonate in H₂O, potassium bis(carbonato)borate hydrate K[B(CO₂-μ-O-CO₂)₂]·2H₂O, was determined by X-ray crystallography. The compound crystallized in the orthorhombic system, and was characterized to be in the space group Aba2, with cell parameters of a = 11.0579(10)Å, b = 11.1695(10)Å, c = 9.0504(9)Å, Z = 4, and V = 1117.83(18)ų. In the crystal structure, intermolecular O–H···O hydrogen bonds link the molecules into a supramolecular structure, in which they may be effective in stabilizing the structure. The B atom espouses a distorted tetrahedral geometry with four O atoms of carbonate ligands.

A dinuclear copper(II) carboxylate with 2,3,6-trimethoxybenzoic acid (H236-tmbz), tetrakis(μ-2,3,6-trimethoxybenzoato-κO:κO′)bis[(methanol)copper(II)], [Cu₂(236-tmbz)₄(CH₃OH)₂], was prepared, and the crystal structure was determined by a single-crystal X-ray structure analysis at 90 K. It crystallizes in the triclinic space group P1 with a = 7.4282(11)Å, b = 12.2389(18)Å, c = 13.3158(19)Å, α = 115.128(2)°, β = 95.396(3)°, γ = 91.086(2)°, V = 1088.8(3)ų, D_x = 1.580 g/cm³, and Z = 1. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0513 and 0.1207, respectively, for all 4894 independent reflections. The two copper atoms are bridged by four 2,3,6-trimethoxybenzoato ligands in a syn-syn mode to form a dinuclear cluster (Cu···Cu 2.6071(8)Å) with the apical methanol molecules. The benzoate phenyl rings are largely rotated to the bridging OCO moieties with a rotation angle (ϕ_rot) of 74.9(2) and 44.6(3)°.

The crystal structure of a 2-(pyridin-2-ylamino)pyridinium trifluoromethanesulfonate, H₂dpa(OTf ) (OTf⁻ = CF₃SO₃⁻), which consisted of a protonated 2-(pyridin-2-ylamino)pyridine (Hdpa) cation and a trifluoromethanesulfonate anion, was elucidated at 173 K by the single-crystal X-ray diffraction method. The compound crystallized in the monoclinic space group P2₁/m with a = 7.6770(4), b = 9.6170(5), c = 9.2748(5)Å, β = 106.201(6)°, Z = 2, V = 657.56(6)ų. The R1 and wR2 values were 0.0461 and 0.1223, respectively, for 1887 reflections.

The structure of 2-(1-benzoylazetidin-3-yl)thio-1,3-thiazoline was determined by the single-crystal X-ray diffraction method at 93.15 K. It crystallizes in the orthorhombic space group P2₁2₁2₁ with a = 6.10680(10), b = 12.9876(3), c = 16.2388(3), V = 1287.94(4), and Z = 4. The R₁ [I > 2σ(I)] and wR₂ (all data) values were 0.0356 and 0.0938, respectively, for all 2343 independent reflections. In the crystal structure, the title compound might form CH···π interactions intermolecularly.

The crystal structures of two chalcanthites, (Cu_0.90Fe_0.10)SO₄·5H₂O (I) and (Cu_0.80Fe_0.20)SO₄·5H₂O (II), were determined by single-crystal X-ray diffraction at room temperature. The crystallographic data are (I), triclinic P1, Z = 2, a = 5.9642(3), b = 6.1186(3), c = 10.7128(5)Å, α = 77.340(4), β = 82.384(4), γ = 72.633(4)°, V = 363.13(3)ų, R = 0.036; (II), triclinic P1, Z = 2, a = 5.9611(6), b = 6.1270(6), c = 10.7101(9)Å, α = 77.200(8), β = 82.314(8), γ = 72.484(9)°, V = 362.82(6)ų, R = 0.0701. Both of the crystal structures are isostructural with chalcanthite, CuSO₄·5H₂O, and composed of the square-planar [Cu(H₂O)₄]²⁺ ion at the M1 site and the [(Cu,Fe)(H₂O)₄]²⁺ ion at the M2 site, and the SO₄ tetrahedra which acts as a μ₂-bridge between these sites and one water molecule crystallization. However, unlike chalcanthite, in both crystals aqua ligands at the M2 site are disordered over two positions, and in the second crystal the O atoms of sulfate group are disordered over two positions. The O atoms of the disordered aqua ligands surrounding the Cu2 atom are with occupation factors 0.42(4)/0.58(4) and 0.47(2)/0.53(2) for structure (I), and, 0.50(7)/0.50(7) and 0.7(1)/0.3(1) for structure (II).

Dinuclear zinc(II) complex with 1,4,8,11-tetrakis(salicylideneaminoethyl)-1,4,8,11-tetraazacyclotetradecane (H₄tsaec), [Zn₂(tsaec)]·2CHCl₃, was synthesized. The crystal structure was determined by the single-crystal X-ray diffraction method at 293 K. The complex crystallizes in the monoclinic space group P2₁/c with a = 9.496(3), b = 11.568(3), c = 23.338(7)Å, β = 96.270(4)°, V = 2548.3(12)ų, D_calcd = 1.505 g/cm³, Z = 2. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0407 and 0.1034, respectively, for all 6119 independent reflections. The two zinc(II) atoms are bound to the tsaec ligand outside the central teraazacyclotetradecane ring with an intramolecular Zn···Zn distance of 9.426(2)Å, where each zinc(II) atom is coordinated by two Schiff-base pendant arms with two phenolato-oxygen and two imino-nitrogen atoms to form a distorted tetrahedral geometry.

The X-ray crystal structure of the antimalarial 1-(3-ferrocenyl-2-methylpyrrolo[1,2-a]quinoxalin-4-yl)piperazin-4-ium chloride has been established. It crystallizes in the tetragonal space group P-42₁c with cell parameters a = 24.6705(19)Å, b = 24.6705(19)Å, c = 7.4533(6)Å, α = 90°, β = 90°, γ = 90° V = 4536.3(8)ų and Z = 8. The crystal structure was refined to final values of R1 = 0.0354 and wR2 = 0.0837. An X-ray crystal structure analysis revealed that each molecule features intermolecular N–H···Cl hydrogen bonds interactions between the ammonium group and the chloride anion to form tetramers.

The title compound of a lantern-type rhodium(II) dinuclear complex, cis-[Rh₂^II(4-Me-pf )₂(O₂CCMe₃)₂(py)₂] (4-Me-pf⁻ = N,N′-di-p-tolylformamidinate anion; py = pyridine), was isolated and the crystal structure was determined by the single-crystal X-ray diffraction method at 150 K. It crystallizes in the monoclinc space group P2₁/c with a = 17.4169(2)Å, b = 12.7032(2)Å, c = 21.4293(3)Å, β = 92.311(1)°, V = 4737.38(11)ų, D_x = 1.420 g/cm³, and Z = 4. The R₁ [I > 2σ(I)] and wR₂ (all data) values are 0.0245 and 0.0664, respectively, for all 7864 independent reflections. Two Rh^II atoms are bridged by two 4-Me-pf⁻ and two pivalato ligands in the cis-(2:2) fashion. The axial sites of the dinuclear core are occupied by py ligands with distances of Rh-N_ax = 2.2816(18) and 2.3458(19)Å. The Rh–Rh distance is 2.4630(2)Å, of which value is in the range of those for the other lantern-type dirhodium complexes with formamidinato ligands.

A dinuclear praseodymium(III) complex with N,N′-bis(2-hydroxy-3,5-dimethylbenzyl)-N,N′-dimethyl-1,2-ethanediamine (H₂hdde), [Pr₂(hdde)₂(CH₃COO)₂(CH₃OH)₂]·2CH₂Cl₂, was synthesized and the crystal structure was determined by the single-crystal X-ray diffraction method at 90 K. It crystallizes in the monoclinic space group P2₁/c with a = 10.3559(8)Å, b = 18.6019(14)Å, c = 15.7093(12)Å, β = 104.6470(10)°, V = 2927.9(4)ų, D_x = 1.523 g/cm³, and Z = 2. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0246 and 0.0611, respectively, for all 6828 independent reflections. The complex is a centrosymmetric dinuclear molecule, where each praseodymium atom is coordinated by two phenolato-oxygen atoms and two amino-nitrogen atoms of hdde²⁻, two oxygen atoms of acetato ligand and methanol-oxygen atom, and further bridged by a monatomic-oxygen atom of the bidentate acetato ligand with a Pr–Pr distance of 4.1978(3)Å. Solid-state infrared and electronic spectra and the temperature dependence of magnetic susceptibilities (Δ = 1.14 cm⁻¹, zJ′ = –0.30 cm⁻¹, and g = 0.75) are in harmony with the dinuclear Pr(III) structure.

The aim of the study is to explore the crystal structure and performe Hirshfeld surface analysis of 1-(4-chlorophenyl)-5-{4-[(2-methylphenyl)methoxy]phenyl}-1H-pyrazole. In the title compound, C₂₃H₁₉ClN₂O, the 4-chlorophenyl, 2-methylphenyl and benzene rings are oriented with dihedral angles of 71.22(10), 31.82(9) and 59.76(9)°, respectively, with respect to the pyrazole ring. Pairs of molecules are linked by intermolecular C–H···O hydrogen contacts with R²₂(8) ring motifs forming sheets lying parallel to (100). Furthermore C–H···π interactions also contribute to stabilizing the molecular packing. A Hirshfeld surface analysis has been used to confirm and quantify the supramolecular interactions which indicate that the most important contributions for the crystal packing are from H···H (42.5%) and H···C/C···H (35%) and H···Cl/Cl···H (12%) interactions.

A μ-phenolato-μ-chlorido-bridged dinuclear manganese(II) complex with 2,6-bis(N-(4-imidazolylethyl)iminomethyl)-4-methylphenol (Hbimmp), [Mn₂(bimmp)(μ-Cl)Cl₂], was isolated. The crystal structure was determined by a single-crystal X-ray diffraction method at 293 K. The complex crystallizes in the orthorhombic space group Fdd2 with a = 40.557(4), b = 9.2353(9), c = 12.5138(2)Å, V = 4687.1(8)ų, D_calcd = 1.603 g/cm³, Z = 8. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0309 and 0.0826, respectively, for all 2683 independent reflections. The two manganese(II) atoms are bridged by a phenolato-oxygen of bimmp⁻ and a μ-chlorido atom, where each manganese(II) atom is further coordinated by imino- and imidazolyl-nitrogen atoms of bimmp⁻ and chlorido atoms to form a square-pyramidal geometry.

The title compound, [Ni(HL1–NO₂)₂]·CH₃CN, [H₂L1–NO₂ = 2-[2-(hydroxymethylphenyl)iminomethyl]-4-nitrophenol], was synthesized and characterized by single-crystal X-ray analysis. The compound crystallizes in the triclinic space group P1 with cell parameters a = 10.556(2)Å, b = 11.779(3)Å, c = 12.247(3)Å, α = 86.412(10)°, β = 71.135(8)°, γ = 73.009(8)°, V = 1377.2(5)ų, D_calcd = 1.549 g/cm³, Z = 2. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0362 and 0.1024, respectively, for all 5989 independent reflections. The tridentate ligands coordinate to the nickel atom as a mer-manner.

The crystal structure of bis{1,3-bis[bis(pyridin-2-ylmethyl)amino]propan-2-olato-dizinc(II)}orthophosphate tris(perchlorate) octahydrate, [(Phos-tag)₂-PO₄³⁻][ClO₄⁻]₃·8H₂O was determined by the single-crystal X-ray diffraction method at 93.15 K. The titled complex crystallized in the monoclinic space group C2/c and Z = 4 with a = 16.8423(2), b = 21.3554(2), c = 19.9942(2)Å, β = 106.8690(10)°, and V = 6881.95(13)ų. The R₁ [I > 2σ(I)] and wR₂ (all data) values were 0.0447 and 0.1142, respectively, for all 6253 independent reflections. In the crystal structure, each zinc(II) ion is coordinated with two pyridyl amines, a tertiary amine, an alkoxide oxygen, and a phosphate oxygen to form a trigonal bipyramidal geometry. The orthophosphate trianion connects two dinuclear zinc(II) complex (Phos-tag) in a μ₄–η⁴ bridge mode.