X‐ray crystal structures and MMA polymerization of cadmium(II) complexes with bidentate pyrazole ligands: the formation of monomers or dimers as a function of a methyl substituent on the pyrazole and aniline rings
作者:Dongil Kim、Sunghoon Kim、Hyun Yul Woo、Ha‐Jin Lee、Hyosun Lee
DOI:10.1002/aoc.3148
日期:2014.6
N,N‐bis(1H‐pyrazolyl‐1‐methyl)aniline (L1), N,N‐bis(1H‐pyrazolyl‐1‐methyl)‐p‐methylaniline (L2), N,N‐bis(1H‐pyrazolyl‐1‐methyl)‐3,5‐dimethylaniline (L3), N,N‐bis(3,5‐dimethyl‐1H‐pyrazolyl‐1‐methyl)aniline (L4) and N,N‐bis(1H‐pyrazolyl‐1‐methyl)‐2,6‐dimethylaniline (L5) in ethanol yields novel Cd(II) bromide complexes, [L1CdBr2]2, [L2CdBr2]2, [L3CdBr2]2, [L4CdBr2] and [L5CdBr2]. The X‐ray crystal structures
CdBr 2 ·4H 2 O与辅助配体N,N-双(1 H-吡唑基-1-甲基)苯胺(L 1),N,N-双(1 H-吡唑基-1-甲基)-反应对甲基苯胺(L 2),N,N-双(1 H-吡唑基-1-甲基)-3,5-二甲基苯胺(L 3),N,N-双(3,5-二甲基-1 H-吡唑基-1-甲基苯胺(L 4)和N,N-双(1 H-吡唑基-1-甲基)-2,6-二甲基苯胺(L 5)在乙醇中生成新型Cd(II)溴化物配合物[L 1 CdBr 2 ] 2,[L 2 CdBr 2 ] 2,[L 3 CdBr 2 ] 2,[L 4 CdBr 2 ]和[L 5 CdBr 2 ]。[L 1 CdBr 2 ] 2,[L 2的X射线晶体结构CdBr 2 ] 2和[L 3 CdBr 2 ] 2揭示了一种具有晶体学反演对称性的溴桥联二聚体。相反,[L 4 CdBr 2 ]和[L 5 CdBr 2 ]作为单体络合物存在,可能是由于[L