Universität zu Köln

Kraikivskii, Peter B., Klein, Hans-Friedrich, Saraev, Vitaly V., Schloerer, Nils E. and Bocharova, Victoria V. (2011). Intramolecular rearrangement of the imine-amide ligand within the nickel coordination sphere affected by carbon monoxide. J. Organomet. Chem., 696 (21). S. 3376 - 3384. LAUSANNE: ELSEVIER SCIENCE SA. ISSN 0022-328X

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Abstract

The interactions of the nickel imine-amide allyl complex [D-2-C=N (N) over cap Ni)CNi(eta(3)-allyl)] 1 with carbon monoxide and unsaturated hydrocarbons have been studied. It is shown that this complex reacts readily with carbon monoxide to form the nickel(0) diimine carbonyl complex [(2-(1-propenyl)-[1,10] phenanthroline) Ni(CO)(2)](2). During the process the ligand undergoes a deep transformation within the nickel coordination sphere. Specifically, the nickel-nitrogen sigma-bond turns to an N-donor bond with aromatization of a ring in the nitrogen-containing ligand. This novel heteroaromatic ligand 2-(1-propenyl)-[1,10] phenanthroline has been isolated; the nickel(0) diimine carbonyl complex 2 has been studied with X-ray diffraction method. The comparative spectral studies of complexes 1, 2, and 2-(1-propenyl)-[1,10] phenanthroline have been carried out with UV/vis, IR-FT, and 2D NMR spectroscopy. It has been shown that the planar 16-electron nickel(II) imine-amide allyl complex 1 is indifferent to olefins and acetylenes. Based on the NMR data, this fact can be explained by the inability of the pi-delta rearrangement into 1. (C) 2011 Elsevier B. V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kraikivskii, Peter B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Klein, Hans-Friedrich UNSPECIFIED UNSPECIFIED UNSPECIFIED Saraev, Vitaly V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schloerer, Nils E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bocharova, Victoria V. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-487263
DOI:	10.1016/j.jorganchem.2011.07.022
Journal or Publication Title:	J. Organomet. Chem.
Volume:	696
Number:	21
Page Range:	S. 3376 - 3384
Date:	2011
Publisher:	ELSEVIER SCIENCE SA
Place of Publication:	LAUSANNE
ISSN:	0022-328X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DIIMINE COMPLEXES; POLYMERIZATION; ETHYLENE; CATALYSTS; OLIGOMERIZATION; ACTIVATION; PALLADIUM; ISOMERIZATION; BEHAVIOR Multiple languages Chemistry, Inorganic & Nuclear; Chemistry, Organic Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48726