A terminal molybdenum carbide prepared by methylidyne deprotonation

Abstract

The carbide anion [CMo{N(R)Ar}₃]^– [R = C(CD₃)₂CH₃, Ar = C₆H₃Me₂-3,5], is obtained by deprotonation of the corresponding methylidyne compound, [HCMo{N(R)Ar}₃], and is characterized by X-ray diffraction as its {K(benzo-15-crown-5)₂}⁺ salt, thereby providing precedent for the carbon atom as a terminal substituent in transition-metal chemistry.

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