Affiliation:
1. Department of Chemical Sciences Indian Institute of Science Education and Research Berhampur Transit Campus, Govt. ITI Building, Engineering School Road, Ganjam 760010 Berhampur Odisha India
2. Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
Abstract
AbstractHalf‐sandwich iridium complexes of the type [(η5‐C5Me5){(NHC)E}IrCl] (E=P, As) were prepared by the reactions of N‐heterocyclic carbene (NHC) adducts of trimethylsilylphosphinidene and trimethylsilylarsinidene, (IDipp)ESiMe3 and (IMes)ESiMe3, with [(η5‐C5Me5)IrCl2]2 (IDipp=bis(2,6‐diisopropylphenyl)imidazolin‐2‐ylidene; IMes=1,3‐bis(2,4,6‐trimethylphenyl)imidazolin‐2‐ylidene). The molecular structure of [(η5‐C5Me5){(IDipp)As}IrCl] was established by X‐ray diffraction analysis, affording the first structurally authenticated NHC‐arsinidenide complex with a short Ir−As bond length that reveals a significant degree of metal‐arsenic π‐interaction as also confirmed by theoretical calculations.