η-Cyclopentadienylimido molybdenum chemistry: hydrido, alkyl and η-alkyl derivatives

Abstract

The following compounds have been prepared and characterized: [Mo(η-C₅H₄R)Cl₃(NBu^t)](R = H, Me or Prⁱ), [{MoCl₃(µ-Cl)(NBu^t)}₂], cis- and trans-[{Mo(η-C₅H₄Me)(NBu^t)(µ-NBu^t)}₂], [{Mo(η-C₅H₄Me)O(µ-NBu^t)}₂], [Mo(η-C₅H₄Me)(η-C₂H₄)Me(NBu^t)], [Mo(η-C₅H₅)(η-C₂H₄)Ph(NBu^t)], [Mo-(η-C₆H₄Me)(η-C₂H₄)(H or D)(NBu^t)], [Mo(η-C₅H₄Me)(PMe₃)Cl(NBu^t)], [Mo(η-C₅H₄Me)(PMe₃)-Me(NBu^t)], [Mo(η-C₅H₄Me)(PMe₃)₂(NBu^t)]⁺A^–(A = Cl or BF₄), [Mo(η-C₅H₄Me)(PMe₂Ph)Cl-(NBu^t)], isomers of [Mo(η-C₅H₄R)(η-C₃H₅)(NBu^t)](R = Me or Prⁱ), and [Mo(η-C₅H₄Me)(η-C₂H₄)-(σ-C₃H₅)(NBu^t)]. The crystal structure of [{MoCl₃(µ-Cl)(NBu^t)}₂] has been determined. These compounds include the first or rare examples of combinations of ligands with the imido group, for example, imido η³-allyl derivatives.