separated on a preparative TLC plate. The X-ray structures of the new and representative complexes 1a, 2a and 4a have been solved to characterise them. The complexes 3 and 5 were characterised by comparing their spectral properties with those of the known and analysed samples of isomeric [Os(pap)2Br2]. Except for complex 1, the rest are formed due to cleavage of an otherwise unreactive C(phenyl)–N(amine)
[NH 4 ] 2 [OsBr 6 ]与2-[((芳基
氨基)苯基偶氮]
吡啶]反应,NH 4 C 5 N NC 6 H 4 N(H)C 6 H 4(R)[R = H(HL a)或CH 3 (HL b)],在稀NEt 3存在下可提供多种产物。五个分子式为[Os(HL)(L)Br],1,[Os(L)(pap)Br],2的化合物,[Os(pap)2 Br 2 ]的两个异构体,3和5以及[ Os(HL)(巴氏)Br参见图2,图4,其中L和pap分别代表HL和2-(苯基偶氮)
吡啶的共轭碱基,已在制备TLC板上分离。已经解决了新的和代表性的配合物1a, 2a和4a的X射线结构以表征它们的特征。通过将它们的光谱性质与异构体[Os(pap) 2 Br 2 ]的已知和分析样品的光谱性质进行比较来表征复合物3和5。复杂1除外,其余部分是由于
金属离子促进的原本不反应的C(苯基)-N(胺)键断裂而形成的。HL和L在