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Updated: Jan 15, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Reactivity of a molybdenum-nitride complex bearing an NHC-based PCP-type pincer ligand toward unsaturated substrates
Tomoyuki Miyazaki1, Shun Suginome1, Taiji Nakamura2
1Department of Applied Chemistry, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. ynishiba@g.ecc.u-tokyo.ac.jp.
Abstract:
Reactivity of a molybdenum-nitride complex bearing an N-heterocyclic carbene (NHC)-based PCP-type pincer ligand (1), whose nitride ligand is derived from dinitrogen, toward various unsaturated substrates was systematically investigated. The reaction of complex 1 with carbon monoxide as a substrate featuring a C-O triple bond afforded the corresponding cationic nitride-carbonyl complex, where the carbonyl ligand is coordinated to the molybdenum centre in place of the iodine ligand. Reactions of complex 1 with 1-pentyne, ethylene, and maleic anhydride as substrates featuring a C-C multiple bond afforded the corresponding π-complexes, where the C-C multiple bond is coordinated to the molybdenum centre. The reaction of 1 with dioxygen also yielded the corresponding π-complex in a similar manner to the reaction with ethylene. Finally, we investigated the redox reactivities of nitride-carbonyl and nitride-alkyne complexes.
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