C≡N and N≡O Bond Cleavages of Acetonitrile and Nitrosyl Ligands at a Dimolybdenum Center to Render Ethylidyne and Acetamidinate Ligands.

ABSTRACT: Extended reduction of [Mo₂Cp₂(μ-Cl)(μ-P^tBu₂)(NO)₂] (1) with Na(Hg) in acetonitrile (MeCN) at room temperature resulted in an unprecedented full cleavage of the C≡N bond of a coordinated MeCN molecule to yield the vinylidene derivative Na[Mo₂Cp₂(μ-P^tBu₂)(μ-CCH₂)(NO)₂], which upon protonation with (NH₄)PF₆ gave the ethylidyne complex [Mo₂Cp₂(μ-P^tBu₂)(μ-CMe)(NO)₂] [Mo1-Mo2 = 2.9218(2) Å] in a selective and reversible way. Controlled reduction of 1 at 273 K yielded instead, after protonation, the 30-electron acetamidinate complex [Mo₂Cp₂(μ-P

SUBMITTER: Alvarez MA 

PROVIDER: S-EPMC10880054 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature