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Syntheses and crystal structures of copper(I) complexes with alkyl-thioallophanate derivatives

1997; Elsevier BV; Volume: 16; Issue: 15 Linguagem: Inglês

10.1016/s0277-5387(96)00609-2

1873-3719

Shen Xu, Ting‐Bin Wen, Qiutian Liu, Xiao‐Ying Huang, Bei‐Sheng Kang, Xiaolin Wu, Huang Zhi-shu, Lian‐Quan Gu,

Crystal structures of chemical compounds

The reaction of CuCl2·2H2O with N-(p-nitrophenyl)-N′-butoxycarbonyl)-thiourea (H2nbt) and N-(o-nitrophenyl)-N′-(ethoxycarbonyl)-thiourea (H2net) gave two copper(I) complexes, [Cu(H2nbt)2Cl]2, 1, and Cu(H2net)2Cl, 2, respectively. In complex 1, the ligand H2nbt is S,S-bonded to two Cu atoms, and the two ligand molecules exchange "long" CuS interactions (CuS = 2.700 Å) forming a dimer, in which the Cu atom has a distorted tetrahedral coordination ClCuS(1) = 119.9(1),ClCuS(2) = 122.9(1) and S(1)CuS(2) = 108.4(1)° and is 0.387(2) Å from th basal S,S,Cl with unequal CuS [2.253(3), 2.244(3) Å] and CuCl [2.247(3) Å] bonds. In complex 2, the copper (I) atom is inn a trigonal planar geometry [ClCuS(1) = 120.53(5), ClCuS(2) = 118.43(5) and S(1)CuS(2) = 119.16(5)°] with two unequal CuS[2.228(1), 2.232(1) Å] and CuCl[2.251(1) Å] bonds.