Dithioquadratato-Komplexe von Kupfer(II) und Kupfer(I). / Dithiosquarate Complexes of Copper(II) and Copper(I).

1990 ◽  
Vol 45 (4) ◽  
pp. 490-496 ◽  
Author(s):  
Ralf Krause ◽  
Rainer Mattes

From aqueous solutions of potassium dithiosquarate and bis(ethylenediamino)copper(II) sulfate the following compounds have been obtained: [CuII(en)2][CuII(C4O2S2)2] (2) and [CuII(en)2(H2O)]2[Cu4I(C4O2S2)4] · 2 H2O (3). Their structures have been determined: Crystal data, 2, monoclinic, space group C 2/c, a = 1914.5(6), b = 823.0(1), c = 1669.5(5) pm, β = 133.23(1)°, Ζ = 4; 1809 reflections, R = 0.024. 3, triclinic, a = 779.2(3), b = 958.7(4), c = 1478.8(4) pm, α = 82.34(3), β = 82.68(2), γ = 73.47(3)°, Ζ = 1; 3376 reflections, R = 0.045. 2 contains infinite chains of centrosymmetrical [Cu(en)2]2+ cations and bisphenoidal [Cu(C4O2S2)2]2- anions. 2 shows ferromagnetic behaviour above 75 K. At lower temperatures antiferromagnetic coupling between the chains dominates. 3 contains isolated [Co(en)2H2O]2+ cations and tetrameric [Cu(C4O2S2)]- anions. The anion consists of a chain of tetrahedrally and trigonally coordinated Cu(I) atoms with short Cu · · · Cu distances of 255.2( 1 ) and 257.9( 1 ) pm. The dithiosquarate ligands are stacked in pairs.

2012 ◽  
Vol 67 (1) ◽  
pp. 23-28
Author(s):  
Zhi-Guo Kong ◽  
Yu He ◽  
Na Xu ◽  
Jia Guo ◽  
Dan Li

Two new related coordination polymers, namely, [Pb(L)(1,4-ndc)] · 0.5H2O (1) and [Cd(L)(1,4- ndc)] · 0.5H2O (2), where L = 2-(3-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline and 1,4- ndc = 1,4-naphthalenedicarboxylate, were synthesized under hydrothermal conditions. Crystal data for 1: C62H36F2N8O9Pb2, monoclinic space group C2/c, a = 15.874(3), b = 19.982(4), c = 16.045(3) Å, β = 94.26(3), V = 5075.3(18) Å3, Z = 4. Crystal data for 2: C62H36Cd2F2N8O9, monoclinic space group P21/n, a = 12.622(2), b = 14.038(3), c = 14.938(3) Å , β = 100.81(2), V = 2600.0(8) Å3, Z = 2. In compound 1, the 1,4-ndc ligands connect the Pb(II) atoms to yield a chain structure. The L ligands are attached on the same side of the chain. The π-π interactions between L ligands of neighboring chains result in a 2D supramolecular architecture of 1. In compound 2, 1,4-ndc ligands link the Cd(II) atoms to generate a layer structure. The L ligands from adjacent layers are paired to furnish strong π-π interactions. Further, these layers are extended into 3D supramolecular architectures through these π-π interactions. The structural differences of 1 and 2 suggest the importance of the metal centers in the construction of the coordination polymers. The luminescent properties of the compounds were also investigated.


1981 ◽  
Vol 36 (10) ◽  
pp. 1208-1210 ◽  
Author(s):  
Hartmut Köpf ◽  
Joachim Pickardt

Abstract The molecular structure of the bridged [1]-titanocenophane 1,1'-dimethylsilylene titanocene dichloride, (CH3)2Si(C5H4)2TiCl2, has been investigated by an X-ray structure determination. Crystal data: monoclinic, space group C2/c, Z = 4, a = 1332.9(3), 6 = 988.7(3), c = 1068.9(3) pm, β = 113.43(2)°. The results are compared with the structural dimensions of similar compounds: 1,1'-methylene titanocene dichloride, CH2(C5H4)TiCl2, with the unbridged titanocene dichloride, (C5H5)2TiCl2 and the ethylene-bridged compound (CH2)2(C5H4)2TiCl2


1992 ◽  
Vol 47 (3) ◽  
pp. 305-309 ◽  
Author(s):  
Anja Edelmann ◽  
Sally Brooker ◽  
Norbert Bertel ◽  
Mathias Noltemeyer ◽  
Herbert W. Roesky ◽  
...  

Abstract The Molecular Structures of [2,4,6-(CF3)3C6H2S]2 (1) [2,4,6-Me3C6H2Te]2 and [2-Me2N-4,6-(CF3)2C6H2Te]2 (3) have been determined by X-ray diffraction. Crystal data: 1: orthorhombic, space group P212121, Z = 4, a = 822.3(2), b = 1029.2(2), c = 2526.6(5) pm (2343 observed independent reflexions, R = 0.042); 2: orthorhombic, space group Iba 2, Z = 8, a = 1546.5(2), b = 1578.4(2), c = 1483.9(1) pm (2051 observed independent reflexions, R = 0.030); 3: monoclinic, space group P 21/c, Z = 4, a = 1118.7(1), b = 1536.5(2), c = 1492.6(2) pm, β = 98.97(1)° (3033 observed independent reflexions, R = 0.025).


2018 ◽  
Vol 74 (12) ◽  
pp. 1719-1724 ◽  
Author(s):  
Yimin Mao ◽  
Peter Y. Zavalij

Two ZnII-based coordination polymers (CPs) were synthesized by the hydrothermal method, using Zn(NO3)2·6H2O and furan-2,5-dicarboxylic acid (FDCA) in dimethylformamide (DMF) solvent, at 95 °C. Poly[tetrakis(dimethylazanium) [tetrakis(μ2-furan-2,5-dicarboxylato-κ2 O 2:O 5)dizinc(II)]], {(C2H8N)4[Zn2(C6H2O5)4]} n or {[DMA]4[ZnII 2(FDC)4]} n (DMA = dimethylazanium and FDC = furan-2,5-dicarboxylate), (1), was obtained with a 1:1 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group C2/c. Coordinated by ZnII ions, FDC2− ligands form 21 double-stranded helices propagating along the b axis. The helices are interconnected and extend laterally in the a direction, forming a two-dimensional (2D) sheet-like network. The 2D sheets are stacked along the c direction without interconnections. DMA cations are cocrystallized in (1) and are hydrogen bonded with carboxylate O atoms of the FDC2− ligands. The hydrogen-bonding pattern consists of R 2 2(4) and R 2 2(10) motifs alternating in a chain. Poly[bis(dimethylazanium) [bis(μ4-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5:κO 5)bis(μ3-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5)dizinc(II)] dimethylformamide 3.08-solvate], {(C2H8N)2[Zn2(C6H2O5)4]·3.08C3H7NO} n or {[DMA]2[ZnII 3(FDC)4]·3.08DMF} n , (2), was obtained with a 1:2 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group P21/c, forming a three-dimensional network. The pores are filled with DMA cations and DMF solvent molecules.


1994 ◽  
Vol 49 (6) ◽  
pp. 770-772 ◽  
Author(s):  
Klaus Schulbert ◽  
Rainer Mattes

The reactions of N-substituted dithiocarbamic acid esters and nickel acetate yield, by partial degradation of the esters, the polynuclear nickel thiolato complexes cyclo-[(μ-SMe)2Ni]6, 1 and [(μ-SMe)2(Ni(MeNHCS2))2, 2. Their crystal structures have been determined. The Ni coordination spheres are comprised of four sulfur atoms in a planar arrangement. 1 is a second, highly symmetrical modification of the already known cyclic hexamer Ni6(SMe)12. In 2 two Ni(PhNHCS2) moieties are bridged to dimers by thiolato groups. Two of these dimers are connected to a tetramer by weak axial Ni-S interactions. Crystal data for 1: monoclinic, space group P21/n, a = 986.1(2), b = 1308.1(3), c = 1228.6(2) pm, β = 96.07(3)°, Z = 2, R = 0.072, Rw = 0.062, 3797 reflections. 2: orthorhombic, space group Pnma, a = 1790.0(4), b = 1806.7(4), c = 934.4(2) pm. Z = 4, R = 0.061, Rw = 0.051, 2079 reflections


1998 ◽  
Vol 53 (7) ◽  
pp. 641-652 ◽  
Author(s):  
Arista Gräfe-Kavoosian ◽  
Shida Nafepour ◽  
Klaus Nagel ◽  
Karl-Friedrich Tebbe

Abstract The new compound [(Crypt-2.2.2)H2]I8 has been prepared by the reaction of [(Crypt-2.2.2)H2](I3)2 with iodine in methanol. It crystallizes in the orthorhombic space group Pbcn with a = 11.476 (2), b = 13.589 (2), c = 22.888 (2) Å and Z = 4. The crystal structure has been refined to RF = 0.031 for 1618 reflections. It may be described as a layerlike packing of octaiodide anions I82-and diprotonated 2.2.2-Crypt as cations. The non planar octaiodide anion is built up from two triiodide groups and a bridging iodine molecule.Tris(1, 10-phenanthroline)nickel(II) octaiodide bis(chloroform) crystallizes in the monoclinic space group P21/n with a = 11.683 (8), b = 21.717 (8), c = 20.752 (5) Å, β = 95.03 (5)° and Z = 4 formula units. The crystal structure has been refined to RF = 0.058 for 3894 reflections. The structure consists of two chloroform molecules, octahedrally coordinated complex cations [Ni(phen)3]2+ and nonplanar octaiodide anions I82- each composed of two asymmetric triiodide units I3- weakly associated with an elongated bridging iodine molecule I2.The already known structure of bis(N-methylurotropinium) octaiodide, (UrMe)2I8, has been verified and more accurate crystal data have been collected. The crystal structure has been refined to RF = 0.045 for 1908 reflections. The compound crystallizes in the monoclinic space group P21/c with a = 11.302 (2), b = 9.850 (2), c = 14.188 (2) Å , β = 92.59 (1)° and Z = 2. The anion has the shape of a stretched Z.The structure of bis(N-ethylurotropinium) octaiodide (UrEt)2I8 has been determined and a new configuration (I3-, I5-) for octaiodide ions between Z (I3- · I2 ·I3-) and a “broken” configuration (I3-, I5-) has been observed. The compound crystallizes in the triclinic space group P1̄ with a = 9.741 (3), b = 11.815 (3), c = 15.426 (3) Å, α = 91.80 (2), β = 107.14 (2), γ = 90.04 (2)° and Z = 2. The crystal structure has been refined to RF = 0.037 for 3657 reflections.


1989 ◽  
Vol 44 (5) ◽  
pp. 553-556 ◽  
Author(s):  
Th. Fetzer ◽  
A. Lentz ◽  
T. Debaerdemaeker

Single crystals of Cu(pz)Br2 and Cu(pz)Cl2 were grown by using gel methods with tetramethoxysilane as the gel-forming reagent. Thermal decomposition is interpreted. Crystal data for the bromo complex: monoclinic, space group C2/m with a = 1239.2(3) pm, b = 685.9(2) pm, c = 390.7(3) pm, β = 96,23(5)°. Crystal data for the chloro-complex: monoclinic, space group C2/m with a = 1197.1(3) pm, b = 684.9(3) pm, c = 370.1(3) pm, β = 95.96(5)°. Crystal structure analyses reveal that CuHal2 molecules are bonded by pyrazine to form linear chains. These chains are cross-linked by bridging halogen atoms.


2019 ◽  
Vol 5 (3) ◽  
pp. 43
Author(s):  
En-Che Yang ◽  
Yu-Ying Chang ◽  
Shi-Yi Huang ◽  
Ling-Xuan Hong ◽  
Gene-Hsiang Lee ◽  
...  

Two ligands, 2,4-di-2-pyridyl-2,4-pentanediol (rD and mD), were employed to synthesize two Mn2 complexes, [Mn2(rD)2Br2] (1) and [Mn2(mD)2(H2O)2]Br2 (2). Compound 1 crystallized in a tetragonal space group, P41212, with a novel hamburger shaped structure. A detailed study indicated that compound 1 did not contain a metal–metal bond, but antiferromagnetic coupling was observed between the Mn(III) ions. Compound 2 crystallized in a monoclinic space group, C2/c, with one Mn(II) and the other with Mn(IV). The two manganese ions were bridged by two alkoxide ligands, resulting in ferromagnetic coupling. Magnetic property studies confirm the above assignments.


1987 ◽  
Vol 42 (7) ◽  
pp. 867-873 ◽  
Author(s):  
Peter Hoffmann ◽  
Andreas Steinhoff ◽  
Rainer Mattes

Abstract The reactions of Mo(CO)6, W(CO)6 and Re(CO)6Br with the ligand l-thia-4,7-diazacyclononane (C6H14N2S = L) yield crystals of LMo(CO)3 (4a), LW(CO)3 (4b) and LRe(CO)3Br (5). A n improved synthesis of L has been developed, and the structures of 4a and 5 have been determined. Crystal data: 4a, monoclinic, space group P21/n, a = 791.3(4), b - 1332.6(4), c = 1149.2(6) pm, β - 98.96(4)°, Z = 4.1841 reflexions, R = 0.045. 5, orthorhombic, space group Pbca, a = 1413.4(5), b = 1398.0(5), c = 1409.5(5) pm, Z = 8.2619 reflexions, R = 0.038. Both crystals contain pseudooctahedral LM(CO)3 moieties, with facial coordination of the CO molecules. The Re - N bond lengths (average 220.3(4) pm) are rather short. The structure of L 'Mo(CO)3 (3) with the acyclic ligand 1,7-diaza-4-thiaheptane (C4H10N2S = L') was also determined. Crystal data: monoclinic, space group P21/c, a = 682.8(2), b = 1213.0(3), c = 1253.0(3), β = 99.74°, Z = 4.1889 reflexions, R = 0.023.


1981 ◽  
Vol 14 (6) ◽  
pp. 462-463
Author(s):  
D. Argelès ◽  
M. Quarton ◽  
J.-P. Silvestre

Nd(MoO4) (ReO4) is monoclinic, space group P21/c; the cell dimensions are a = 6.169 (1), b = 9.822 (1), c = 13.139 (2) Å and β = 111.65 (1)°. The monoclinic compounds in the series Ln(MoO4) (ReO4), with Ln = Ce to Lu (Pm compound is not examined), are isotypic. Crystal parameters and powder diffraction data are given.


Sign in / Sign up

Export Citation Format

Share Document