A complex with nitrogen single, double, and triple bonds to the same chromium atom: synthesis, structure, and reactivity

作者：Beaumier Evan P; Billow Brennan S; Singh Amrendra K; Biros Shannon M; Odom Aaron L^*

来源：Chemical Science, 2016, 7(4): 2532-2536.

DOI：10.1039/c5sc04608d

A nitrogen-based analogue of the Schrock and Clark "yl-ene-yne" complex, W(CBut)(CHBut)(CH2But)(dmpe), has been prepared. The new complex is the nitrido, imido, amido anion [NCr(NPh)(NPr2i)(2)](-), which was structurally characterized with the [K(crypt-2.2.2)](+) counterion. The "Cr-N 1-2-3" complex was prepared from NCr(NHPh)(NPr2i)(2), which exists as this nitrido-amido tautomer, rather than the bis(imido) Cr(NH)(NPh)(NPr2i)(2). By selection of electrophile, the nitrido-imido salt K[NCr(NPh)(NPr2i)(2)] can undergo reaction at either the imido or the nitrido to form unusual examples of nitrido or bis(imido) complexes.

• 出版日期2016