【摘要】 本文报道2个新的包含[Ni3(dpa)4Cl2]组分的配合物,[Ni3(dpa)4Cl2]2CH3COCH3(1)和[Ni3(dpa)4Cl2]2/3CH3CN1/3C6H14(2),其中dpa-为2,2′-二吡啶胺负离子。结合文献已经发表的5个类似配合物,发现这些结构中Ni-Ni键长有一定差异,但Ni-Cl和Ni-N键长基本没有差异,显示出较少报道的键伸缩异构现象,而这种键伸缩异构现象出现的原因是分子结构的对称与不对称引起的。更多还原

【Abstract】 Two new complexes containing the moiety of [Ni3(dpa)4Cl2],[Ni3(dpa)4Cl2]·2CH3COCH3(1) and [Ni3(dpa)4 Cl2]·2/3CH3CN·1/3C6H14(2),where dpa-is 2,2’-dipyridylamine anion,were synthesized.Together with previously reported five similar complexes containing the moiety of [Ni3(dpa)4Cl2],we found that the Ni-Ni distances are somewhat different while Ni-Cl and Ni-N distances are very similar in these seven complexes,which is called as bond stretch isomerism.The nature for bond stretch isomerism in these complexes is the structural symmetrical character.CCDC:772074,1;772075,2.更多还原