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Titolo:
Formation of Pd2X2(mu-S)(mu-dpm)(2) by reaction of PdX2(dpm) with H2S in the presence of alumina (X = halogen, dpm = diphenylphosphinomethane)
Autore:
Wong, TYH; James, BR; Wong, PC; Mitchell, KAR;
Indirizzi:
Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada Univ British Columbia Vancouver BC Canada V6T 1Z1 ver, BC V6T 1Z1, Canada
Titolo Testata:
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
fascicolo: 2-3, volume: 139, anno: 1999,
pagine: 159 - 169
SICI:
1381-1169(19990305)139:2-3<159:FOPBRO>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
DINUCLEAR PALLADIUM(I) COMPLEXES; HYDROGEN-SULFIDE; MECHANISTIC ASPECTS; BIS(DIPHENYLPHOSPHINO)METHANE; DERIVATIVES; CONVERSION; CRYSTAL; SURFACE; MODELS;
Keywords:
Pd2X2(mu-S)(mu-dpm); PdX2(dpm); H2S; alumina;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: James, BR Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada Univ British Columbia Vancouver BC Canada V6T 1Z1 T 1Z1, Canada
Citazione:
T.Y.H. Wong et al., "Formation of Pd2X2(mu-S)(mu-dpm)(2) by reaction of PdX2(dpm) with H2S in the presence of alumina (X = halogen, dpm = diphenylphosphinomethane)", J MOL CAT A, 139(2-3), 1999, pp. 159-169

Abstract

Alumina promotes the reaction of PdX2(dpm) (3) (X = Cl, Br, I) with H2S toform Pd2X2(mu-S)(dpm)(2) (2)(1) and HX, with chemisorption of the HX (quantified by titration) providing the driving force; although no intermediate species are detected, the reaction likely proceeds via mercapto species formed via 'alumina activated H2S'. XPS studies show interactions of species 2and 3 with alumina, these interactions being weak as demonstrated by recovery of the species on dissolution using an appropriate solvent. For the iodide system, adsorbed HI on alumina undergoes partial photodecomposition to give I-2 and H atoms. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 09:37:40