名称:
Solvent effects on the formation of different cadmium compounds from CdSO4, HCl and 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene
摘要:
Solvothermal reactions of CdSO4 center dot 8/3H(2)O with 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene (titmb) and HCl in H2O, MeOH or EtOH afforded three coordination complexes [Cd5Cl2(mu-Cl)(4)(mu(3)-Cl)(2)(eta,eta,eta-mu(3)-SO4)(2)(H2O)(2) (Htitmb)(2)](n) (1), [Cd4Cl2(mu-Cl)(2)(eta,eta,eta-mu(3)-SO4)(2)(MeOH)(2)(titmb)(2)](n) (2) and [Cd4Cl2(mu-Cl)(2)(eta,eta,eta-mu(3)-SO4)(2)] (3), respectively. All the compounds were characterized by elemental analysis, IR and single crystal X-ray diffraction. Compound 1 has a 1D chain in which each centrosymmetric double butterfly-shaped [Cd5Cl2(mu-Cl)(4)(mu(3)-Cl)(2)(H2O)(2)] unit interlinks with its equivalent ones via two couples of eta,eta,eta-mu(3)-SO4 anions and two pairs of the Htitmb ligands. Compound 2 consists of one centrosymmetric [Cd5Cl2(mu-Cl)(2)(eta,eta,eta-mu(3)-SO4)(2)(MeOH)(4)(titmb)(2)] unit that interconnects with equivalent ones via sharing Cd3 and its symmetry-related ones, forming a 1D zigzag chain. Compound 3 consists of a [Cd4Cl2(mu-Cl)(2)(eta,eta,eta-mu(3)-SO4)(2)] unit linked by a pair of titmb ligands. The results may provide some insight into solvent effects on the formation of different coordination compounds from the same components. (C) 2010 Elsevier B.V. All rights reserved.