Organometallic Isocyanocyclopentadienides: A Combined Synthetic, Spectroscopic, Structural, Electrochemical, and Theoretical Investigation
作者:Thomas C. Holovics、Stephan F. Deplazes、Masaharu Toriyama、Douglas R. Powell、Gerald H. Lushington、Mikhail V. Barybin
DOI:10.1021/om049842n
日期:2004.6.1
compounds [Cr(CNR)6]0,1+,2+ (R = Fc, Cm) are remarkable due to the incorporation of seven transition metal atoms within relatively compact ML6 motifs. The physical, chemical, electrochemical, and spectroscopic properties of the structurally characterized series [Cr(CNFc)6]0,1+,2+ indicate that the electronic influence of the ferrocenyl moiety, often compared to an alkyl group, is in fact more similar
本文报道了两种有机金属异氰基环戊二烯化物的化学反应,它们代表了新兴的一类新的并入非苯环π系统的芳族异氰化物。氨基二茂铁与甲酸苯酯/苯酚的混合物相互作用,然后将所得二茂铁基甲酰胺与POCl 3脱水,可高产率地产生空气和热稳定的异氰基二茂铁(CNFc,Fc =二茂铁)。治疗lithiocymantrene,LiCm(CM =(η 5 -C 5 H ^ 4)的Mn(CO)3),用甲苯磺酰叠氮化物,得到热敏cymantrenyl叠氮化物。未经隔离,CmN 3被NaBH 4还原形成氨基环丁烯,将其转变为对空气稳定但对热和光敏感的异氰基环戊二烯,CNCm。结合6当量的CNR(R = Fc,Cm)与双(萘)铬(0),得到Cr(CNR)6。Cr(CNR)6与Ag +的连续单电子氧化产生了相应的顺磁性[Cr(CNR)6 ] +和[Cr(CNR)6 ] 2+。化合物[Cr(CNR)6 ] 0,1 +,2 +(R