Syntheses and Structural Characterizations of <i>cis</i>-[M(NO)<sub>2</sub>(CNXyl)<sub>4</sub>]<sup>+</sup> (M = Nb, Ta; Xyl = 2,6-Me<sub>2</sub>C<sub>6</sub>H<sub>3</sub>). The First Dinitrosyls of Niobium and Tantalum<sup>1</sup>
作者:Mikhail V. Barybin、Victor G. Young、John E. Ellis
DOI:10.1021/om990330w
日期:1999.7.1
The first dinitrosyls of niobium and tantalum, cis-[M(NO)2(CNXyl)4]+, have been prepared by direct nitrosylation of [M(CO)6]- (M = Nb, Ta) with 2 equiv of [NO]+ in the presence of 2,6-dimethylphenyl isocyanide, CNXyl. These new complexes have been fully characterized by IR, 1H, and 13C NMR spectra as well as X-ray crystallography.
Homoleptic Isocyanidemetalates of 4d- and 5d-Transition Metals: [Nb(CNXyl)<sub>6</sub>]<sup>-</sup>, [Ta(CNXyl)<sub>6</sub>]<sup>-</sup>, and Derivatives Thereof<sup>1</sup>
作者:Mikhail V. Barybin、William W. Brennessel、Benjamin E. Kucera、Mikhail E. Minyaev、Victor J. Sussman、Victor G. Young、John E. Ellis
DOI:10.1021/ja065964q
日期:2007.2.1
presence of CNXyl provided [M(CNXyl)(7)](+), M(CNXyl)(6)I, or cis-[M(CNXyl)(4)(NO)(2)](+), which are isocyanide analogues of the unknown carbonyl complexes [M(CO)(7)](+), M(CO)(6)I, or cis-[M(CO)(4)(NO)(2)](+), respectively. Reduction of M(CNXyl)(6)I by cesium graphite gave the respective Cs[M(CNXyl)(6)], which have been structurallycharacterized and represent the first isolablehomoleptic isocyanidemetalates