UNSPECIFIED (2001) Doubly cyclometalated pyridazines: Contrasting behavior with palladium and platinum. ORGANOMETALLICS, 20 (21). pp. 4418-4423. ISSN 0276-7333

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Abstract

The cyclometalation of 3,6-diphenylpyridazines with palladium and platinum has been studied. When palladium acetate is used as the metal source, two sequential cyclometalations are observed, with the first cyclometalation deactivating the system toward a second cyclometalation. Both monocyclopalladated and dicyclopalladated species have been isolated and characterized as their acetylacetonate derivatives. When potassium tetrachloroplatinate is used as the metal source, only double cycloplatination is observed: the first cycloplatination activates the system toward a second cycloplatination through a combination of nitrogen coordination and a chloride bridging two platinums. A doubly cycloplatinated compound has been isolated as its triphenylphosphine derivative, which has been fully characterized: the single-crystal X-ray structure shows that the two platinums are bridged by a chloride.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Journal or Publication Title:	ORGANOMETALLICS
Publisher:	AMER CHEMICAL SOC
ISSN:	0276-7333
Date:	15 October 2001
Volume:	20
Number:	21
Number of Pages:	6
Page Range:	pp. 4418-4423
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/11662

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