Cupro(I)-π-complexes with 1-allyloxybenzotriazole: Synthesis and crystal structure of CuBF4 · 2C6H4N3(OC3H5) · H2O and CuCF3COO · C6H4N3(OC3H5)

The crystals of copper(I) π-complexes CuBF₄ · 2C₆H₄N₃(OC₃H₅) · H₂O (I) and CuCF₃COO · C₆H₄N₃(OC₃H₅) (II) were obtained by alternating-current electrosynthesis and studied by X-ray diffraction: I, space group P2₁/n, a = 10.226(8), b = 13.233(10), c = 16.30(1) Å, β = 98.13(1)°, V = 2249(2) ų, Z = 4, R = 0.0705, 577 reflections; I, space group P $ P\bar 1 The crystals of copper(I) π-complexes CuBF₄ · 2C₆H₄N₃(OC₃H₅) · H₂O (I) and CuCF₃COO · C₆H₄N₃(OC₃H₅) (II) were obtained by alternating-current electrosynthesis and studied by X-ray diffraction: I, space group P2₁/n, a = 10.226(8), b = 13.233(10), c = 16.30(1) ?, β = 98.13(1)°, V = 2249(2) ?³, Z = 4, R = 0.0705, 577 reflections; I, space group P , a = 8.8625(7), b = 9.0647(4), c = 9.1650(5) ?, α = 68.37(2)°, β = 85.31(3)°, γ = 69.86(2)°, V = 646(4) ?³, Z = 2, R = 0.1354, 2669 reflections. In compound I, the tetrahedrally distorted trigonal pyramidal environment of the copper atom comprises two nitrogen atoms of two organic molecules (L), the C=C bond of another L molecule, and the O atom of the water molecule. Due to the bridging function of L molecule, infinite chains [Cu · 2C₆H₄N₃(OC₃H₅) · H₂O] _n are formed in the structure along the y axis. The chains are, in turn, assembled into layers through strong O-H…F hydrogen bonds involving both hydrogen atoms of the water molecule and fluorine atoms of the BF₄⁻ anion. In compound II, two bridging oxygen atoms of two trifluoroacetate anions and two copper atoms form a centrosymmetric dimer. The nitrogen atom of the benzotriazole ring of one molecule L and the C=C double bond of the allyl group of the other molecule L complete the distorted coordination tetrahedron of the metal atom. Owing to the bridging function of the L molecule, the [CuCF₃COO · C₆H₄N₃(OC₃H₅)]₂ dimers are connected to form infinite double chains associated in a three-dimensional framework by only weak interactions. The replacement of the covalently bonded trifluoroacetate anion by an outer-sphere tetrafluoroborate ion opens up the possibility for metal atom binding to three L molecules simultaneously. Original Russian Text ? E.A. Goreshnik, M.G. Mys’kiv, 2008, published in Koordinatsionnaya Khimiya, 2008, Vol. 34, No. 11, pp. 826–830.     

Crystal structure and thermal properties of [Pt(NH3)5Cl][ReCl6]Cl·H2O

The crystal structure of double complex salt [Pt(NH₃)₅Cl][ReCl₆]Cl·H₂O is determined. Crystallographic characteristics are: a = 23.9502(4) Å, b = 7.5963(1) Å, c = 8.9016(2) Å, V = 1619.49(5) ų, space group Pnma, Z = 4, d _x = 3.150 g/cm³. The packing of structural fragments is studied. It is shown that on heating the salt in a helium atmosphere up to 840 °C a mixture of two solid solutions of fcc Pt_0.90Re_0.10 and hcp Pt_0.25Re_0.75 forms.     

Synthesis and crystal structure of [UO2CrO4(C5NH5COO)] · 0.25H2O

[UO₂CrO₄(C₅NH₅COO)] · 0.25H₂O crystals have been synthesized and studied by X-ray diffraction and IR spectroscopy. The compound crystallizes in monoclinic system with the unit cell parameters a = 7.2362(3) ?, b = 13.8847(6) ?, c = 10.7204(5) ?, ?? = 90.037(2)°, space group P2₁/n, Z = 4, R = 0.0236. The structure consists of [UO₂CrO₄(C₅NH₅COO)] chains, which run in the direction [100] and correspond to the AT³B⁰¹ crystallochemical formula, where A = UO ₂ ²⁺ , T³ = CrO ₄ ^2? , and B⁰¹ is nicotinic acid molecules in the form of zwitter ions. The results of analyzing nonbonded interactions in the crystal structure by the method of molecular Voronoi-Dirichlet polyhedra (MMVDP) are presented.     

Cu(I) hexafluorosilicate π-complex with N,N′-diallylpiperazinium, [Cu(H2O)2.5{μ-C4H8N2H2(C3H5)2}0.5]SiF6·H2O: Synthesis and crystal structure

This paper reports the ac electrochemical synthesis of the crystals of Cu(I) hexafluorosilicate π-complex with N,N′-diallylpiperazinium of the composition [Cu(H₂O)_2.5{μ-C₄H₈N₂H₂(C₃H₅)₂}_0.5]SiF₆·H₂O, i.e., the π-complex of Cu(I) synthesized for the first time, where the Cu(I) atom simultaneously coordinates three H₂O molecules. The crystals are monoclinic: space group P2₁/a, a = 13.470(6) Å, b = 10.025(6) Å, c = 9.864(5) Å, γ = 112.19(4)°, V = 1233(2) ų, Z = 4, R = 0.0555 for 1252 independent reflections, R _w = 0.0634 for 1145 reflections with F ≥ 4σ(F). The structure consists of the {(H₂O)_2.5Cu(C₄H₈N₂H₂(C₃H₅)₂)Cu(H₂O)_2.5} dimers and the Sif ₆ ^2? anions bonded through hydrogen contacts O-H…F and C-H…F.     

Synthesis and Crystal Structure of Copper(I) Chloride π-Complexes with N-Allyl- and N,N'-Diallylpiperazinium Dichlorides: [C3H5NH(CH2)4NH2]Cu2Cl4and [C3H5NH(CH2)4NHC3H5]0.5CuCl2

The crystals of copper(I) π-complexes with N-allyl piperazine derivatives, [C₃H₅NH(CH₂)₄NH₂]Cu₂Cl₄(I) and [C₃H₅NH(CH₂)₄NHC₃H₅]_0.5CuCl₂(II), were prepared by alternating-current electrochemical synthesis. X-ray diffraction study showed that compounds Iand IIcrystallize in the monoclinic system: for I, space group P2₁/a, a= 10.254(4) Å, b= 12.306(4) Å, c= 10.656(4) Å, γ = 98.83(3)°, V= 1329(2) ų, Z= 4, R= 0.0457 for 1334 independent reflections; for II, space group P2₁/n, a= 10.187(2) Å, b= 7.283(2) Å, c= 10.480(3) Å, γ = 100.72(2)°, V= 764.0(6) ų, Z= 4, R= 0.0371 for 1025 independent reflections. The structure of Iis composed of {Cu₂Cl₄(C₇H₁₆N₂)}₂dimers linked by fairly strong (N)H···Cl hydrogen bonds (2.35(4) Å). The structure of IIconsists of centrosymmetrical dimeric Cu₂Cl₄ ^2–anions, whose copper atoms coordinate the allyl groups of different centrosymmetrical organic cations. The dimer–ligand chains are stretched along the [ $ {11} $ 0] direction and are joined by hydrogen contacts (N)H···Cl (2.62(4) Å).     

Synthesis, crystal structure, and thermal analysis of hexahydrogen dodecavanadate of composition [NH3 · H2O]6 · H6[Ca4V12O40] · 6H2O

Dihydrogen dodecavanadate of composition [NH₃ · H₂O]₆ · H₆[Ca₄V₁₂O₄₀] · 6H₂O was synthe-sized and studied by X-ray crystallography and TGA analyses. The crystals are cubic, space group I $\bar 4$ 3m;; unit cell parameters: a = 13.518(2) ?, V = 2470.4(3) ?³, ??_calc = 2.2334 g/cm³, Z = 2.     

Synthesis and structure of bismuth-containing complexes [Ph3PMe] 2 + [BiI5]2− and [Ph3PMe] 2 + [BiI5 · C5H5N]2− · C5H5N

The complexes [Ph₃PMe] ₂ ⁺ [BiI₅]^2? (I) and [Ph₃PMe] ₂ ⁺ [BiI₅ · C ₅H₅N]^2? · C ₅H₅N (II) were synthesized by the reaction of bismuth triiodide with triphenylmethylphosphonium iodide, and their structures were determined by X-ray diffraction analysis. The P atom in cation I has slightly distorted tetragonal coordination polyhedron (the CPC angles 109.42(4)° and 109.52(4)°, the bond lengths P-C_Ph 1.779(2), P-C_Me 1.793(1) Å. The Bi atom in the anion of complex I has an ideal trigonal-bipyramidal coordination polyhedron (Bi-I_eq 3.0031(4), Bi-I_eq 3.0485(5) Å). The crystal of complex II consists of the anions [BiI₅ · C ₅H₅N]^2?, solvated pyridine molecules, and two types of crystallographically independent tetrahedral triphenylmethylphosphonium cations (the angles CPC 106.9(1)°–111.7(1)°, the distances P-C_Ph 1.785(3)–1.792(3), P-C_Me 1.793(3), 1.786(3) Å). The Bi atoms in the anion of complex II have a distorted octahedral coordination polyhedron (Bi-I 3.0878(4)–3.1240(3), Bi-N(1) 2.628(3) Å).     

Synthesis, crystal structure and electrochemical property of 2D lamellar supermolecular complex [Cu(C6H4NO2)2 · H2O]

A 2D lamellar supermolecular complex [Cu(C₆H₄NO₂)₂ · H₂O] was synthesized and characterized by elementary analysis, infrared spectrum, ultraviolet spectrum, thermogravimetry analysis and crystal X-ray diffraction analysis. The complex belongs to the orthorhombic system, Pbca space group, with a = 1.2797(8), b = 1.2944(8), c = 1.4962(9) nm, Z = 8, V = 2.478(3) nm³, D _c = 1.746 g cm^?3, ?? = 1.784 mm^?1, F(000) = 1320, R ₁ = 0.0267, wR ₂ = 0.0762, GOOF = 1.015, which consists of a Cu(II) ion, two 2-Picolinic acid and a coordinated water molecule. The 5-coordinated geometry of the Cu cation is a distorted tetragonal-pyramidal configuration. The 1D chain structure is formed through hydrogen bonds O(w)-H??O between single cells, and the 2D lamellar supermolecular system is formed through the non-classical hydrogen bonds C-H??O between various chains. The complex displays a distinct absorption band (??_max = 648 nm) in aqueous solution. The electrochemical behavior shows a quasi-reversible course. (CCDC: 750880)     

Complexation of N-Allyl Derivatives of Morpholinium with Copper(I) Halides: Synthesis and Crystal Structure of [C4H8ON(C3H5)2]+[Cu4Cl5]–, [C4H8ONH(C3H5)]+[CuBr2]–, and [C4H8ONH(C3H5)]+[CuBr1.41Cl0.59]–

The compounds [C₄H₈ON(C₃H₅)₂]⁺[Cu₄Cl₅]^– (I), [C₄H₈ONH(C₃H₅)]⁺[CuBr₂]^– (II), and [C₄H₈ONH(C₃H₅)]⁺[CuBr_1.41Cl_0.59]^– (III) were prepared for the first time by ac electrochemical synthesis from mono- and di-N-allyl derivatives of morpholinium and copper(I) halides in ethanol solution and structurally characterized. In the structure of I π-complex, the centrosymmetric Cu₈Cl₁₀ fragments are associated into layers perpendicular to the b axis. The N,N"-diallylmorpholinium cation functions as a bridge, which coordinates two copper atom of the adjacent inorganic fragments by both allyl groups. The trigonal-pyramidal surrounding of the Cu(I) atom, as well as the distorted tetrahedral coordination sphere of Cu(2), involves three chlorine atoms and the C=C bond, whereas the planar trigonal surrounding of the Cu(3) atom and trigonal-pyramidal surrounding of the Cu(4) atom involve only chlorine atoms. In the isostructural II and III σ-complexes, the edge-shared CuX₄ tetrahedra form the infinite copper-halide chains running along the a axis. The inorganic fragments and organic N-allylmorpholinium cations are united into the three-dimensional crystal structures by N–H···X and C–H···X (X = Cl, Br) hydrogen bonds.     

Octahedral cluster Mo complexes (Bz3NH)3[Mo6OCl13] and (Bz3NH)2[Mo6Cl14] · 2CH3CN: Synthesis, crystal structure and properties

The salts (Bz₃NH)₃[Mo₆OCl₁₃] (I) and (Bz₃NH)₂[Mo₆Cl1₄] · 2CH3CN (II) were obtained by reacting melted tribenzylamine with cluster Mo compounds. Compound II contains a known cluster anionic complex [Mo₆Cl₁₄]^2?. Compound I includes novel cluster anionic complex [Mo₆OCl₁₃]^3?, where one internal Cl atom is replaced by the O atom. Complex II exhibits phosphorescence in a long-wavelength region of visible spectrum.     

Synthesis and crystal structure of [Nd(C6NO2H5)3(H2O)2] n n[ZnCl4]·nCl·2.5nH2O with novel poly-cationic chain

The title complex, [Nd(C₆NO₂H₅)₃(H₂O)₂] _n n[ZnCl₄]·nCl·2.5nH₂O (1), was obtained by hydrothermal reactions and structurally characterized by X-ray diffraction. The crystal structure analysis reveals that the title complex is characteristic of a novel polycationic [Nd(C₆NO₂H₅)₃(H₂O)₂] _n ³ⁿ⁺ one-dimensional chain-like structure.     

Crystal structure of copper(I) chloride π-complexes with diallylamine: (C6H12N)2Cu7Cl9·H2O and 2CuCl·C6H11N

For the first time we have synthesized and studied by X-ray structural analysis two novel copper(I) chloride -complexes with diallylamine (DAA): [H(DAA)]₂Cu₇Cl₉·H₂O (D) and 2CuCl·DAA (E). Compound D is isostructural to the complex [H(DAA)]₂Cu₇Br₉·H₂O studied earlier: space group Pnam, a=15.934(8), b=14.817(6), c=11.368(6) , V=2684(4) ³, and Z=4 for [(C₆H₁₂N)₂ Cu₇Cl₉·H₂O]. Crystals E are triclinic: space group P1, a=7.373(2), b=9.743(4), c=11.351(8) , =84.05(4), =101.26(4), =103.31(3)°, V=914(2) ³, and Z=2 for [Cu₄Cl₄·(C₆H₁₁N)₂]. The layers of the structure are formed by combining the armchair-shaped cycles Cu₄Cl₄ via the tridentate DAA molecules.I. Franko Lvov State University, Ukrainian Academy of Sciences. Translated fromZhurnal Strukturnoi Khimii, Vol. 34, No. 6, pp. 43–48, November–December, 1993.Translated by T. Yudanova     

Synthesis and crystal structure of Cu(I) π-complexes with N-allyl-5-amino-1-phenyl-1H-1,2,3-triazole-4-carboxamide [Cu(C12H13N5O)(NO3)] · 0.5H2O and [Cu(C12H13N5O)(CF3COOH)]

Copper(I) ??-complexes of the compositions [Cu(C₁₂H₁₃N₅O)(NO₃)] · 0.5H₂O (1) and [Cu(C₁₂H₁₃N₅O)(CF₃COO)] (2) (C₁₂H₁₃N₅O is N-allyl-5-amino-1-phenyl-1H-1,2,3-triazole-4-carboxamide) were obtained by alternating-current electrochemical synthesis, and their crystal structures were studied by X-ray crystallography. Crystals of the compounds are monoclinic, space group C2/c with the unit cell parameters a = 21.3976(15) ?, b = 8.0335(4) ?, c = 18.6027(13) ?, ?? = 114.422(2)°, V = 2911.6(3) ?³, Z = 8 for 1; and a = 18.3578(18) ?, b = 9.8700(10) ?, c = 20.9094(18) ?, ?? = 106.883(3)°, V = 3625.3(6) ?³, Z = 8 for 2. In both structures, N-allyl-5-amino-1-phenyl-1H-1,2,3-triazole-4-carboxamide acts as a bridging tridentate chelating ligand and forms with copper(I) atoms infinite chains containing [CuC₄NO] seven-membered rings. The chains are linked to form a three-dimensional framework due to hydrogen bonds (N)H??O, which involve nitrogen atoms of amino and amide groups of the ligand. The coordination sphere of Cu(I) atoms consists of olefin bond of the allyl C=C group, O atom of the carbonyl group, N(3) atom of the triazole nucleus of the organic ligand, and an oxygen atom of nitrate (compound 1) or trifluoroacetate (compound 2) anion, respectively.     

Complex formation of 2,4,6-triallyloxy-1,3,5-triazine with copper(I,II) chloride. Synthesis and crystal structure of the Cu3Cl4 · 2C3N3(OC3H5)3 π-complex

The mixed-valence Cu₃Cl₄ · 2C₃N₃(OC₃H₅)₃ π-complex (I) is synthesized from 2,4,6-triallyloxy-1,3,5-triazine (L) and copper(II) chloride by the alternating-current electrochemical method in an ethanolic solution. Single crystals of complex I are studied by X-ray diffraction analysis: space group I4₁/a, a = 25.39(8), c = 10.14(6) Å, V = 6537(48) ų, Z = 8, R = 0.0814. The copper(I) and chlorine atoms form unique cyclic tetramers Cu₄Cl₄. The coordination sphere of each copper(I) atom includes the C=C bond of the allyl group of the ligand molecule L in addition to the two bridging chlorine atoms. Two nearest triazine rings are coordinated through the nitrogen atoms to the copper(II) atoms, whose environment is completed to a square with two chlorine atoms. An intricate three-dimensional structure is formed due to the μ₄-bridging function of the cupro(I) tetramer and the μ₂-bridging function of the ligand molecule L.     

3-(diallylamino)propanenitrile ((C3H5)2NC2H4CN, L) π-complexes with copper(I) ionic salts. Syntheses and crystal structures of compounds [Cu(H+L)ClO4]ClO4 · H2O, [Cu(H+L)BF4]BF4 · H2O, and [Cu(H+L)(H2O)]SiF6 · H2O

Qualitative single crystals of ??-complexes Cu(H⁺L)(ClO₄)]ClO₄ · H₂O (I), Cu(H⁺L)(BF₄)]BF₄ · H₂O (II), and [Cu(H⁺L)(H₂O)]SiF₆ · H₂O (III) are synthesized from solutions of 3-(diallylamino)propanenitrile (L) in propanol, ethanol, and methanol-water acidified with the corresponding acid to pH 3.5?C5 and from the copper(II) salts (Cu(ClO₄)₂ · 6H₂O, Cu(BF₄)₂ · 6H₂O, and CuSiF₆ · 4H₂O) using the alternating-current electrochemical method on copper wire electrodes. The crystal structures of the complexes are determined. All compounds crystallize in the monoclinic crystal system: complexes I and II are isostructural, space group P2₁/n, Z = 4. For compound III, space group P2₁/c, Z = 8. Unit cell parameters: for I a =7.8153(3), b = 16.7824(7), c = 12.4426(5) ?, ?? = 93.410(2)°, V = 1629.1(1) ?³; for II, a = 7.6755(4), b = 16.7119(7), c = 12.3784(6) ?, ?? = 94.354(2)°, V = 1583.2(1); and for III a = 9.826(2), b = 24.009(3), c = 12.061(2) ?, ?? = 91.820(6)°, V = 2843.9(7) ?³. The trigonal pyramidal coordination of the copper atom in complexes I-III is formed by two C=C bonds of the allyl groups of H⁺L, the nitrile N atom of the adjacent cation of the ligand, and the O or F atom of the ClO ₄ ^? or BF ₄ ^? anions. In structure III, the apical position of the pyramid is occupied by the O atom of the water molecule, since the SiF ₆ ^2? anion is considerably remote from the copper(I) atom. However, this anion is bound to the organic cation by hydrogen bonds F??H (2.05?C2.51 ?).     

Synthesis and structure of [C3N2H5][Cu(H2PO4)2Cl]·H2O with a chain structure: the first example of an organically templated copper (II) phosphate

A new one-dimensional copper (II) phosphate, [C₃N₂H₅][Cu(H₂PO₄)₂Cl]·H₂O, I, with pseudo-10-membered channels along the b-axis formed by the hydrogen bonded chains, containing imidazolium ions has been synthesized and characterized by single-crystal X-ray diffraction. The compound being the first example of an organically templated copper (II) phosphate, crystallizes in the monoclinic space group P2₁/n (No. 14) with a=8.9998(14) Å, b=7.0189(11) Å, c=18.986(3) Å; β=102.964(3)°; V=1168.8(3) ų; Z=4. The copper chlorophosphate chains in I are topologically similar to those observed in fornacite and vauquelinite.     

Copper complexes with N-allylisoquinolinium halides: Synthesis and crystal structures of [C9H7N(C3H5)]2CuIICl2.86Br1.14, [C9H7N(C3H5)CuIBr2] · H2O, and [C9H7N(C3H5)CuIBr2]

Crystals of the copper bromide complexes with N-allylisoquinolinium halides of the composition [C₉H₇N(C₃H₅)]₂Cu^IICl_2.86Br_1.14 (I), [C₉H₇N(C₃H₅)]Cu^IBr₂ · H₂O (II), and [C₉H₇N(C₃H₅)]Cu^IBr₂ (III) are prepared by ac electrochemical synthesis, and their structures are studied by X-ray diffraction analysis (DARCh-1 (for I) and KUMA/CCD (for II and III) diffractometers). The crystals of compound I are monoclinic: space group P2₁/n, a = 15.053(5) Å, b = 10.486(4) Å, c = 17.179(10) Å, γ = 109.77(3)°, V = 2552(4) ų, Z = 4. The crystals of complex II are triclinic: space group P $\overline 1 $ , a = 7.040(1) Å, b = 7.610(2) Å, c = 12.460(2) Å, α = 79.54(3)°, β = 86.73(3)°, γ = 89.51(1)°, V = 655.4(2) ų, Z = 2. The crystals of complex III are monoclinic: space group P2₁/n, a = 12.799(1) Å, b = 7.692(1) Å, c = 13.491(1) Å, β = 111.08(1)°, V = 1239.3(2) ų, Z = 4. The structure of compound I is built of the Cu^IIX ₄ ^2? tetrahedra and N-allylisoquinolinium cations united by the C-H···X contacts into corrugated layers. The crystal structure of π-complex II is formed of dimers of the composition [C₉H₇(C₃H₅)]₂ Cu ₂ ^I Br₄ forming layers in the direction of the z axis due to the C-H···X contacts. An important role in structure formation belongs to water molecules that cross-link the organometallic layers through the O-H···X contacts into a three-dimensional framework. When kept in the mother liquor for 6 months, the crystals of compound II transformed into crystals of compound III, whose structure consists of {[C₉H₇(C₃H₅)]₂Cu ₂ ^I Br₄} _n columns united through the C-H···Br contacts (H···Br 2.84(3)?2.92(4) Å) into a three-dimensional framework.     

Synthesis and crystal structure of ((NH3CH2CH2)3N)2P6O18·6H2O

Chemical preparation and crystal structure are given for a new cyclohexaphosphate: ((NH₃CH₂CH₂)₃N)₂P₆O₁₈·6H₂O. This compound is triclinic P¯1 with the following unit-cell parameters: a = 10,281(1)Å, b = 11.083(1)Å, c = 9.307(2)Å, α = 103.83(1) °, β = 108.56(1) °, γ = 68.11(1) °, Z = 1, V = 924.2(3)ų and pcal. = 1.582 g.cm⁻³. Its atomic arrangements contain layers built by P₆O₁₈ ring anions spreading in the plans (001). Between these layers are located the organic groups which form hydrogen bonds with oxygen atoms of P₆O₁₈ rings and water molecules. Crystal structure has been solved and refined to R = 0.028 using 4540 independent reflections. The thermal behavior has been investigated and interpreted by comparison with IR absorption spectroscopy and X-ray diffraction experiments.     

Crystal structure and properties of H3[PMo12O40] · 3C2H6O

The title compound H₃[PMo₁₂O₄₀]· 3C₂H₆O was prepared and characterized by X-ray crystallography, its i.r. spectrum, cyclic voltammetry and e.s.r. spectra. The anion of the title compound is a Keggin-type heteropoly structure based upon a central PO₄ tetrahedron surrounded by 12 MoO₆ octahedra arranged in four groups of three edge-shared octahedra Mo₃O₁₃. Weak hydrogen bonds exist between the organic solvent molecules and the heteropoly anion. The catalytic activity of the title compound was determined by the synthesis of butyl acetate. The conversion of n-BuOH reached 93.3% and the yield of MeCO₂Bu-n was 92.0% when the ratio of MeCO₂H to n-BuOH, catalyst amount, reaction time, reaction temperature were 2:1, 0.24% of the reactants (50 mg), 2.0 h and 115 120 °C, respectively.     

Synthesis and Structure of anti-Configuration Complex [Cu(tssb)2]·2[(H3O)Cl]·4H2O

The title complex [Cu(tssb)2]·2[(H3O)Cl]·4H2O (C18H34Cl2CuN2O14S2) (tssb = taurine salicylaldehyde Schiff base) has been synthesized by the reaction of taurine salicylaldehyde Schiff base (tssb) and copper acetate in water-ethanol. Its single-crystal structure was determined by X-ray diffraction method. The crystal structure belongs to triclinic, space group P with a = 0.7407(1), b = 1.3329(3), c = 1.5736(3)nm, α = 103.800(4), β = 95.030(4), γ = 104.416(4)°, Mr = 701.06, V = 1.4433(5) nm3, Z = 2, Dc = 1.613 g/cm3, μ = 1.153 mm-1 and F(000) = 726. The compound is an infinitely expanding three-dimensional network connected with hydrogen bonds. The Cu(Ⅱ) atom is coordinated by two nitrogen and two oxygen atoms to form a distorted planar coordination compound which adopts anti-configuration because two sulfonic acid groups are positioned diagonally on a plane.