作者:Séverine Roué、Claude Lapinte
DOI:10.1016/j.jorganchem.2004.10.006
日期:2005.1
The synthesis of the new complexes Cp*(dppe)FeCC2,5-C4H2SR (Cp* = 1,2,3,4,5-pentamethylcyclopentadienyl; dppe = 1,2-bis(diphenylphosphino)ethane; 2a, R = CCH; 2b, R = CCSi(CH3)3; 2c, R = CCSi(CH(CH3)2)3; 3a, R = CC2,5-C4H2SCCH; 3c, R = CC2,5-C4H2SCCSi(CH(CH3)2)3) is described. The 13C NMR and FTIR spectroscopic data indicate that the π-back donation from the metal to the carbon rich ligand increases
新配合物Cp *(dppe)FeCC2,5-C 4 H 2 SR(Cp * = 1,2,3,4,5-五甲基环戊二烯基; dppe = 1,2-双(二苯基膦基)乙烷; 2a, R = CCH; 2b,R = CCSi(CH 3)3 ; 2c,R = CCSi(CH(CH 3)2)3 ; 3a,R = CC2,5-C 4 H 2 SCCH; 3c,R = CC2,描述了5-C 4 H 2 SCCSi(CH(CH 3)2)3)。在1313 C NMR和FTIR光谱数据表明,从金属到富碳配体的π返给随着有机π电子体系的大小而增加。还通过CV分析了新的配合物,并使用1当量的[Cp 2 Fe] [PF 6 ]进行了2a和3c的化学氧化。相应的配合物2a [PF 6 ]和3c [PF 6 ]是热稳定的,而2a [PF 6太活泼而不能分离为纯化合物。光谱数据表明,对于这些新的有机铁(III)衍生物,大型有