New Insight into Reactions of Ni(S2C2(CF3)2)2 with Simple Alkenes: Alkene Adduct versus Dihydrodithiin Product Selectivity Is Controlled by [Ni(S2C2(CF3)2)2]- Anion

Autor:	Neilson Nguyen, and Alan J. Lough, Daniel J. Harrison, Ulrich Fekl
Rok vydání:	2006
Předmět:	chemistry.chemical_classification Ethylene Alkene chemistry.chemical_element General Chemistry Crystal structure Photochemistry Biochemistry Sulfur Medicinal chemistry Catalysis Adduct Nickel chemistry.chemical_compound Colloid and Surface Chemistry chemistry Alkene binding Selectivity
Zdroj:	Journal of the American Chemical Society. 128:11026-11027
ISSN:	1520-5126 0002-7863
DOI:	10.1021/ja063030w
Popis:	The nickel bis(dithiolene) complex Ni(S2C2(CF3)2)2 employs its sulfur centers in reactions with alkenes, and stable interligand S-bonded alkene adducts can be formed. The present study shows that the selectivity of alkene binding to charge-neutral Ni(S2C2(CF3)2)2 is influenced by the anion [Ni(S2C2(CF3)2)2]-. In the absence of anion, formation of substituted dihydrodithiins (intraligand addition) dominates, whereas the presence of anion allows for the formation of stable interligand adducts. Mechanistic implications are discussed. The X-ray crystal structure of the ethylene adduct of Ni(S2C2(CF3)2)2 is presented, displaying interligand binding of ethylene to sulfur centers in the bis(dithiolene) complex.
Databáze:	OpenAIRE
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