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Article: Photoreactions of organic halides, alcohols, and olefins with tetrakis(pyrophosphito)diplatinate(II)

TitlePhotoreactions of organic halides, alcohols, and olefins with tetrakis(pyrophosphito)diplatinate(II)
Authors
Issue Date1989
Citation
Journal Of Physical Chemistry, 1989, v. 93 n. 8, p. 3095-3099 How to Cite?
AbstractThe photoreactions of [Pt2(P2O5H2)4] 4- (Pt2) with organic halides (RX), alcohols (RR′CHOH), and olefins have been investigated. The second-order rate constants (kq) for the reactions of 3A2u Pt2 (3Pt2*) with these substrates have been determined by Stern-Volmer quenching experiments. With RX, the kq values increase with decreasing C-X bond strength. Flash-photolysis experiments establish that the primary step of the photoreactions of Pt2 with RX is halogen atom transfer. Broad-band irradiation of RR′CHOH (λ > 300 nm) in the presence of Pt2 leads to the production of an aldehyde or ketone and molecular hydrogen. The kq values for aliphatic and benzylic alcohols range from 104 to 106 M-1 s-1, being highest with benzyl alcohol. Flash-photolysis experiments confirm that the first step in these reactions is H-atom transfer. Photoisomerizations of cis- and trans-stilbenes are sensitized by Pt2. © 1989 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/167402
ISSN
1998 Impact Factor: 4.173
1999 SCImago Journal Rankings: 1.721
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChe, CMen_US
dc.contributor.authorLee, WMen_US
dc.contributor.authorCho, KCen_US
dc.contributor.authorHarvey, PDen_US
dc.contributor.authorGray, HBen_US
dc.date.accessioned2012-10-08T03:06:32Z-
dc.date.available2012-10-08T03:06:32Z-
dc.date.issued1989en_US
dc.identifier.citationJournal Of Physical Chemistry, 1989, v. 93 n. 8, p. 3095-3099en_US
dc.identifier.issn0022-3654en_US
dc.identifier.urihttp://hdl.handle.net/10722/167402-
dc.description.abstractThe photoreactions of [Pt2(P2O5H2)4] 4- (Pt2) with organic halides (RX), alcohols (RR′CHOH), and olefins have been investigated. The second-order rate constants (kq) for the reactions of 3A2u Pt2 (3Pt2*) with these substrates have been determined by Stern-Volmer quenching experiments. With RX, the kq values increase with decreasing C-X bond strength. Flash-photolysis experiments establish that the primary step of the photoreactions of Pt2 with RX is halogen atom transfer. Broad-band irradiation of RR′CHOH (λ > 300 nm) in the presence of Pt2 leads to the production of an aldehyde or ketone and molecular hydrogen. The kq values for aliphatic and benzylic alcohols range from 104 to 106 M-1 s-1, being highest with benzyl alcohol. Flash-photolysis experiments confirm that the first step in these reactions is H-atom transfer. Photoisomerizations of cis- and trans-stilbenes are sensitized by Pt2. © 1989 American Chemical Society.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Physical Chemistryen_US
dc.titlePhotoreactions of organic halides, alcohols, and olefins with tetrakis(pyrophosphito)diplatinate(II)en_US
dc.typeArticleen_US
dc.identifier.emailChe, CM:cmche@hku.hken_US
dc.identifier.authorityChe, CM=rp00670en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/j100345a043-
dc.identifier.scopuseid_2-s2.0-0011691509en_US
dc.identifier.volume93en_US
dc.identifier.issue8en_US
dc.identifier.spage3095en_US
dc.identifier.epage3099en_US
dc.identifier.isiWOS:A1989U309300043-
dc.identifier.scopusauthoridChe, CM=7102442791en_US
dc.identifier.scopusauthoridLee, WM=27167694800en_US
dc.identifier.scopusauthoridCho, KC=15129672200en_US
dc.identifier.scopusauthoridHarvey, PD=7401431908en_US
dc.identifier.scopusauthoridGray, HB=36047602600en_US

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