Heterometallic Multiple Bonding: Delocalized Three-Center σ and π Bonding in Chains of 4d and 5d Transition Metals

Heterotrimetallic compounds Mo2Ru(dpa)4Cl2 (1) and W2Ru(dpa)4Cl2 (2) are prepared by reactions of M2(dpa)4 (M = Mo or W; dpa = 2,2′-dipyridylamide) with [Ru(CO)3Cl2]2. Crystallographic studies reveal short Mo–Ru and W–Ru distances, 2.38 Å (1) and 2.39 Å (2), suggestive of delocalized Mo–Mo–Ru and W–...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic chemistry 2014-11, Vol.53 (21), p.11354-11356
Main Authors: Brogden, David W, Berry, John F
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Heterotrimetallic compounds Mo2Ru(dpa)4Cl2 (1) and W2Ru(dpa)4Cl2 (2) are prepared by reactions of M2(dpa)4 (M = Mo or W; dpa = 2,2′-dipyridylamide) with [Ru(CO)3Cl2]2. Crystallographic studies reveal short Mo–Ru and W–Ru distances, 2.38 Å (1) and 2.39 Å (2), suggestive of delocalized Mo–Mo–Ru and W–W–Ru bonding. In contrast to the σ bonding found in the corresponding iron compounds, density functional theory calculations reveal both a three-center/two-electron σ bond and two three-center/four-electron π bonds in the M–M–Ru compounds.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic5024218