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16-Electron Elongated Dihydrogen Complex Stabilized by Agostic Interaction

Dutta, Saikat and Jagirdar, Balaji R (2006) 16-Electron Elongated Dihydrogen Complex Stabilized by Agostic Interaction. In: Inorganic Chemistry, 45 (18). pp. 7047-7049.

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Abstract

A 16-electron dicationic dihydrogen complex $[Ru(\eta^2-H^{...}H)(PP)_2]-[OTf]_2\hspace{2mm}[4; PP )= (C_6H_5CH_2)_2PCH_2CH_2P(CH_2C_6H_5)_2]$ has been prepared and characterized by protonating the precursor hydride complex $[Ru(H)(PP)_2)][OTf]$ (2) using HOTf. The hydride and dihydrogen complexes are stabilized via agostic interaction of the ortho C-H fragment of the phenyl ring on the benzyl group. The intact nature of the H-H bond in this derivative was established from the short spin-lattice relaxation time and the observation of a substantial J(H,D) of 22.0 Hz for the HD isotopomer. The H-H bond distance calculated from J(H,D) is 1.05 \AA, which falls under the category of elongated dihydrogen ligands.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Chemical Society.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 08 Nov 2006
Last Modified: 19 Sep 2010 04:32
URI: http://eprints.iisc.ernet.in/id/eprint/8869

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