Unusually Stable Chromium(IV) Alkyls Bearing a Triamidoamine Ligand
作者:Alexander C. Filippou、Sven Schneider
DOI:10.1021/om030273d
日期:2003.7.1
The chromium(IV) triamidoamine complex [Cr(N3N)Cl] (1; (N3N)3- = ((SiMe3NCH2CH2)3N)3-) reacts with LiR (R = Me, n-Bu) in THF to give selectively the remarkably stable, green chromium(IV) alkyls [Cr(N3N)R] (2, R = Me; 3, R = n-Bu), which have a d2 high-spin electronic configuration and feature, according to 1H and 13C NMR spectroscopy, pseudo-C3v symmetry in solution. Compounds 2 and 3 are the first