作者:Masaaki Okazaki、Masato Takano、Ken-ichi Yoshimura
DOI:10.1016/j.jorganchem.2005.05.003
日期:2005.11
[(η5-C5H4Me)4Fe4(HCCH)(HCC–Py)]2+ ([13]2+) in 90% yield. The reaction with 4,4′-bipyridyl (bpy) requires the severer conditions (70 °C, 2 days), probably due to the relative low basicity of bpy, giving [(η5-C5H4Me)4Fe4(HCCH)(HCC–bpy)]2+ ([14]2+) in 54% yield. The substitution reaction with 4,4′-bipyridyl is strongly accelerated by treatment with silver salt to give [14]2+ in 90% yield. The products derived from [2]+
(η的反应5 -C 5 H ^ 4 Me)的4的Fe 4(HCCH)2(1)用1个当量。的Ñ溴代琥珀酰亚胺(NBS)给出了在83%产率的单电子氧化形式。的[进一步处理1 ] +用NBS导致四个炔质子逐步溴化,得到[(η 5 -C 5 H ^ 4 Me)的4的Fe 4(HCCH)(HCCBr)] +([ 2 ] +),[ (η 5 -C 5 H ^ 4 Me)的4的Fe 4(HCCBr)2 ] +([ 3A ] +),[(η 5 -C 5 H ^ 4 Me)的4的Fe 4(HCCBr)(BrCCBr)] +([ 4 ] +),和[(η 5 -C 5 ħ 4 Me)的4的Fe 4(BrCCBr)2 ] +([ 5 ] +)的中等产率,用的异构体[ 3A ] +,[(η 5 -C 5H 4 Me)4 Fe 4(HCCH)(BrCCBr)] +([ 3b ] +),形成为次要产物。这些化合物通过分