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Titolo:
The NMR spectroscopic and X-ray crystallographic study of the oxidative addition of bis(2-thienyl) diselenide to zerovalent palladium and platinum centers
Autore:
Oilunkaniemi, R; Laitinen, RS; Ahlgran, M;
Indirizzi:
Univ Oulu, Dept Chem, FIN-90401 Oulu, Finland Univ Oulu Oulu Finland FIN-90401 ulu, Dept Chem, FIN-90401 Oulu, Finland Univ Joensuu, Dept Chem, FIN-90801 Joensuu, Finland Univ Joensuu JoensuuFinland FIN-90801 Chem, FIN-90801 Joensuu, Finland
Titolo Testata:
JOURNAL OF ORGANOMETALLIC CHEMISTRY
fascicolo: 2, volume: 587, anno: 1999,
pagine: 200 - 206
SICI:
0022-328X(19990925)587:2<200:TNSAXC>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEAR-MAGNETIC-RESONANCE; CRYSTAL-STRUCTURE; MOLECULAR-STRUCTURE; ORGANOTELLURIUM COMPOUNDS; COORDINATION CHEMISTRY; METAL-COMPLEXES; LIGANDS; SE; TRANSITION; SELENIUM;
Keywords:
aromatic diselenides; palladium complex; platinum complex; X-ray crystallography; NMR spectroscopy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Laitinen, RS Univ Oulu, Dept Chem, FIN-90401 Oulu, Finland Univ Oulu Oulu Finland FIN-90401 m, FIN-90401 Oulu, Finland
Citazione:
R. Oilunkaniemi et al., "The NMR spectroscopic and X-ray crystallographic study of the oxidative addition of bis(2-thienyl) diselenide to zerovalent palladium and platinum centers", J ORGMET CH, 587(2), 1999, pp. 200-206

Abstract

The pathway of the reaction of dithienyl diselenide with tetrakis(triphenylphosphine)palladium(0) and -pratinum(0) has been explored by the use of NMR spectroscopy and X-ray diffraction. The oxidative addition of dithienyl diselenide to [Pd(PPh3)(4)] mainly results in the formation of two isomers of dinuclear [Pd-2(SeTh)(4)(PPh3)(2)] (Th = 2-thienyl, C4H3S) complex. The workup of the solution produced X-ray-quality crystals of trans-[Pd-2(SeTh)(4)(PPh3)(2)]. The corresponding reaction with [Pt(PPh3)(4)], however, affords isomers of mononuclear [Pt(SeTh)(2)(PPh3)(2)]. Upon recrystallization from dichloromethane a small amount of crystals of dinuclear [Pt-2(SeTh)(4)(PPh3)(2)] is obtained together with those of trans-[Pt(SeTh)(2)(PPh3)(2)]. While the products from both reactions imply that the oxidative addition takes place with the cleavage of the Se-Se bond, a small amount of trans-[PdCl(Th)(PPh3)(2)] is formed in the reaction of [Pd(PPh3)(4)] and Th2Se2 in dichloromethane indicating that C-Se cleavage may also take place during the oxidative addition. (C) 1999 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 02:11:26