Synthesis and characterization of half-sandwich N-heterocyclic carbene complexes of cobalt and rhodium
作者:Erik Fooladi、Bj�rn Dalhus、Mats Tilset
DOI:10.1039/b408750j
日期:——
[CpCo(IMes)I](+)[I(3)(-)], and ligand exchange at Cp*Rh(Me(2)SO)Me(2), respectively. The molecular structures of CpCo(IMes)(CO), CpRh(IMes)(C(2)H(4)), Cp*Rh(IMes)(C(2)H(4)), and Cp*Rh(IMes)Me(2) were determined by single crystal X-ray diffraction. Steric and electronic factors imposed by the strongly donating and sterically demanding IMes ligand are discussed on the basis of X-ray crystallographic, NMR
已经制备和表征了一系列带有N-杂环卡宾配体1,3-二甲酰亚胺基咪唑-2-亚烷基(IMes)的新型半三明治M(I)和M(III)配合物(M = Co,Rh)。因此,(eta5-C(5)R(5))M(IMes)(C(2)H(4))(M = Co,Rh; R = H,Me)从相应的双(乙烯)获得配合物(eta5-C(5)R(5))M(C(2)H(4))(2),但通过新型方法制备的CpRh(IMes)(C(2)H(4)) 16电子Rh(I)化合物Rh(IMes)(C(2)H(4))(2)Cl。羰基化合物(eta5-C(5)R(5))Co(IMes)(CO)(R = H,Me)是通过(eta5-C(5)R(5))Co( CO)(2)。从CpCo(IMes)(CO)和I(2)获得了一种反磁性的,表面上看似16电子的Co(III)化合物[CpCo(IMes)I](+)[I(3)(-)]。最后,通过[Cp