) (4), where an aromatic C−H moiety in the μ2-η2-ON-oximatoquinoline group formed an unusual short intramolecular C−H···O−N hydrogen bond and an intermolecular C−H···OC hydrogen bond simultaneously. The formation of the intramolecular hydrogen bond may provide a stabilization effect for the generation of the η2-ON complex 4 and a driving force for the transformation of 3 to 4.
羟胺7-
氯-4-(羟基
氨基)
喹啉与triosmium簇O的反应3(CO)10(NCMe)2,得到复合体(μ-H)O的3(CO)10(μ 2 -η 1 -OC 9 ħ 6 ñ 2 Cl)的(3),其中μ的新模式2 -η 1 - ö -oximato
配体由氧原子桥连的2个
锇中心。这种复杂的缓慢转化为(μ-H)O的3(CO)10(μ 2 -η 2 -ON-C 9 H ^ 6 NCL)(4),其中μ中芳香族C-H部分2 -η 2 - ON -oximatoquinoline组形成一个不寻常的短分子内C-H···ON氢键和分子间C-H···ö C
氢气同时绑定。分子内氢键的形成可提供用于η的生成的稳定化效果2 - ON复杂4和用于转化的驱动力3至4。