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Article: Photochemistry of iodoform in methanol: Formation and fate of the iso-CHI2-I photoproduct

TitlePhotochemistry of iodoform in methanol: Formation and fate of the iso-CHI2-I photoproduct
Authors
KeywordsDensity Functional Calculations
Iodoform
Isomerization
Photochemistry
Solvent Effects
Issue Date2009
PublisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.chemphyschem.com
Citation
Chemphyschem, 2009, v. 10 n. 11, p. 1895-1900 How to Cite?
AbstractUltrafast population and structural dynamics due to the iso-CHI 2-I isomer product formed upon UV excitation of iodoform (CHI 3) in solution is monitored by femtosecond transient absorption with deep-UV through near-IR probing and picosecond transient resonance Raman spectroscopy. Iso-CHI2-I is found to be a major photochemical product regardless of excitation wavelength (266 and 350 nm) and choice of solvent (methanol, acetonitrile, and cyclohexane), and is produced in 50% quantum yield upon 266 nm excitation of CHI3 in CH3OH. The isomer remains stable up to at least several nanoseconds in C6H12 and CH3CN, but undergoes decay with a 740 ps lifetime in CH 3OH simultaneously with the formation of an iodide ion. In agreement with the experiments, MP2 calculations suggest that iso-CHI2-I readily reacts with CH3OH via O-H insertion/HI elimination reactions. © 2009 Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim.
Persistent Identifierhttp://hdl.handle.net/10722/168393
ISSN
2015 Impact Factor: 3.138
2015 SCImago Journal Rankings: 1.385
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorElKhoury, PZen_US
dc.contributor.authorKwok, WMen_US
dc.contributor.authorGuan, Xen_US
dc.contributor.authorMa, Cen_US
dc.contributor.authorPhillips, DLen_US
dc.contributor.authorTarnovsky, ANen_US
dc.date.accessioned2012-10-08T03:18:24Z-
dc.date.available2012-10-08T03:18:24Z-
dc.date.issued2009en_US
dc.identifier.citationChemphyschem, 2009, v. 10 n. 11, p. 1895-1900en_US
dc.identifier.issn1439-4235en_US
dc.identifier.urihttp://hdl.handle.net/10722/168393-
dc.description.abstractUltrafast population and structural dynamics due to the iso-CHI 2-I isomer product formed upon UV excitation of iodoform (CHI 3) in solution is monitored by femtosecond transient absorption with deep-UV through near-IR probing and picosecond transient resonance Raman spectroscopy. Iso-CHI2-I is found to be a major photochemical product regardless of excitation wavelength (266 and 350 nm) and choice of solvent (methanol, acetonitrile, and cyclohexane), and is produced in 50% quantum yield upon 266 nm excitation of CHI3 in CH3OH. The isomer remains stable up to at least several nanoseconds in C6H12 and CH3CN, but undergoes decay with a 740 ps lifetime in CH 3OH simultaneously with the formation of an iodide ion. In agreement with the experiments, MP2 calculations suggest that iso-CHI2-I readily reacts with CH3OH via O-H insertion/HI elimination reactions. © 2009 Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim.en_US
dc.languageengen_US
dc.publisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.chemphyschem.comen_US
dc.relation.ispartofChemPhysChemen_US
dc.subjectDensity Functional Calculationsen_US
dc.subjectIodoformen_US
dc.subjectIsomerizationen_US
dc.subjectPhotochemistryen_US
dc.subjectSolvent Effectsen_US
dc.titlePhotochemistry of iodoform in methanol: Formation and fate of the iso-CHI2-I photoproducten_US
dc.typeArticleen_US
dc.identifier.emailMa, C:macs@hkucc.hku.hken_US
dc.identifier.emailPhillips, DL:phillips@hku.hken_US
dc.identifier.authorityMa, C=rp00758en_US
dc.identifier.authorityPhillips, DL=rp00770en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/cphc.200900122en_US
dc.identifier.pmid19373794-
dc.identifier.scopuseid_2-s2.0-67749103742en_US
dc.identifier.hkuros172143-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67749103742&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume10en_US
dc.identifier.issue11en_US
dc.identifier.spage1895en_US
dc.identifier.epage1900en_US
dc.identifier.isiWOS:000268817800026-
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridElKhoury, PZ=23488230800en_US
dc.identifier.scopusauthoridKwok, WM=7103129332en_US
dc.identifier.scopusauthoridGuan, X=8313149700en_US
dc.identifier.scopusauthoridMa, C=7402924979en_US
dc.identifier.scopusauthoridPhillips, DL=7404519365en_US
dc.identifier.scopusauthoridTarnovsky, AN=6602307614en_US

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