The MoMo Quintuple Bond as a Ligand to Stabilize Transition-Metal Complexes

Autor:	Duan-Yen Lu, Yi-Chou Tsai, Ting-Shen Kuo, Peter P.-Y. Chen
Rok vydání:	2015
Předmět:	Stereochemistry Chemistry Ligand General Medicine General Chemistry Catalysis Metal chemistry.chemical_compound Crystallography Transition metal visual_art visual_art.visual_art_medium HOMO/LUMO Quintuple bond
Zdroj:	Angewandte Chemie International Edition. 54:9106-9110
ISSN:	1433-7851
DOI:	10.1002/anie.201504414
Popis:	Herein, we report the employment of the Mo-Mo quintuple bonded amidinate complex to stabilize Group 10 metal fragments {(Et3P)2M} (M=Pd, Pt) and give rise to the isolation of the unprecedented δ complexes. X-ray analysis unambiguously revealed short contacts between Pd or Pt and two Mo atoms and a slight elongation of the Mo-Mo quintuple bond in these two compounds. Computational studies show donation of the Mo-Mo quintuple-bond δ electrons to an empty σ orbital on Pd or Pt, and back-donation from a filled Pd or Pt dπ orbital into the Mo-Mo δ* level (LUMO), consistent with the Dewar-Chatt-Duncanson model.
Databáze:	OpenAIRE
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