respectively. Complex 4 ([Ir(2)(CO)2Cl]) was obtained by bubbling carbon monoxide through a solution of 3 in CH2Cl2. Spectroelectrochemical IR analysis of 4 revealed that the oxidation of the ferrocene moiety in 2 significantly reduced the electron‐donating ability of the N‐heterocyclic carbene ligand (ΔTEP=9 cm−1; TEP=Tolman electronic parameter). The oxidation of 5 with [Fe(η5‐C5H4COMe)Cp][BF4] as well as
已开发出高产的
碘化1-(
二茂铁基甲基)-3-间苯二甲
咪唑鎓(1)和1-(
二茂铁基甲基)-3-间苯二甲酰
咪唑-2-亚啶(2)。络合2至[的Ir(cod)
氯} 2 ](COD =顺式,顺式-
1,5-环辛二烯)或的[Ru(PCY 3)
氯2(CH- ø -O-我PRC 6 ħ 4) ](CY =环己基),得到3(物[Ir(2)(COD)CL])和5(的[Ru(2)
氯2(CH- ø -O-我PRC 6H 4)])。通过将
一氧化碳鼓泡通过3在CH 2 Cl 2中的溶液来获得配合物4([Ir(2)(CO)2 Cl])。对4进行的光谱电
化学IR分析表明,2中的
二茂铁部分的氧化显着降低了N杂环卡宾
配体的电子供电能力(Δ
TEP= 9 cm -1;
TEP = Tolman电子参数)。的氧化5用的[Fe(η 5 -C 5 H ^ 4来)的Cp] [BF 4]以及随后用十
甲基二茂铁(Fc *)还原相应的产物[