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Issue 4, 2011
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Strong agostic-type interactions in ruthenium benzylidene complexes containing 7-azaindole based scorpionate ligands

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Abstract

The complexes [Ru(Tai)Cl{=C(H)Ph}(PCy3)] (4) and [Ru(PhBai)Cl{=C(H)Ph}(PCy3)] (5) [where Tai = HB(7-azaindolyl)3 and PhBai = Ph(H)B(7-azaindolyl)2] have been prepared and structurally characterised. The borohydride unit is located in the coordination site trans to the chloride ligand in both complexes. The degree of interaction between the borohydride group and the metal centre was found to be significantly large in both cases. Thermolysis reactions involving complex 4 led to a dehydrogenation reaction forming [Ru(Tai)Cl{PCy22-C6H9)}] (6) where the benzylidene group acts as a hydrogen acceptor.

Graphical abstract: Strong agostic-type interactions in ruthenium benzylidene complexes containing 7-azaindole based scorpionate ligands

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Article information


Submitted
01 Sep 2010
Accepted
05 Nov 2010
First published
06 Dec 2010

Dalton Trans., 2011,40, 951-958
Article type
Paper

Strong agostic-type interactions in ruthenium benzylidene complexes containing 7-azaindole based scorpionate ligands

N. Tsoureas, J. Nunn, T. Bevis, M. F. Haddow, A. Hamilton and G. R. Owen, Dalton Trans., 2011, 40, 951
DOI: 10.1039/C0DT01148G

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