By employing a series of mixed bi- and tridentate N-heterocyclic carbene (NHC)/phosphane ligands, the new molybdenum(0) carbonyl complexes [Mo(CO)4(CP)] [1, CP = 3-(2-diphenylphosphanylethyl)-1-ethylimidazol-2-ylidene], fac-[Mo(CO)3(PCP)] [2, PCP = 1,3-bis(2-diphenylphosphanylethyl)imidazol-2-ylidene], and fac-[Mo(CO)3(CPC)] [3, CPC = bis(1-ethyl-3-ethyleneimidazol-2-ylidene)phenylphosphane] have been
通过使用一系列混合的双和三齿 N-杂环卡宾 (NHC)/
磷烷
配体,新的
钼 (0) 羰基配合物 [Mo(CO)4(CP)] [1, CP = 3-(2-diphenylphosphanylethyl )-
1-乙基咪唑-2-亚基]、fac-[Mo(CO)3(PCP)][2, PCP = 1,3-双(2-
二苯基膦酰基乙基)
咪唑-2-亚基]和fac-[Mo (CO)3(CPC)] [3, CPC = 双(1-乙基-3-亚乙基
咪唑-2-亚基)
苯基膦]已合成。通过 X 射线结构分析和振动和核磁共振光谱结合 DFT 计算研究了这些化合物。为了比较,配合物 [Mo(CO)4(CC)] [4, CC = di(1-ethylimidazol-2-ylidene)methane], fac-[Mo(CO)3(dpepp)] [5, dpepp =双(2-
二苯基膦酰基乙基)
苯基膦]和[Mo(CO)4(dppp)][6