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- Publisher Website: 10.1002/cphc.200900122
- Scopus: eid_2-s2.0-67749103742
- PMID: 19373794
- WOS: WOS:000268817800026
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Article: Photochemistry of iodoform in methanol: Formation and fate of the iso-CHI2-I photoproduct
Title | Photochemistry of iodoform in methanol: Formation and fate of the iso-CHI2-I photoproduct |
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Authors | |
Keywords | Density Functional Calculations Iodoform Isomerization Photochemistry Solvent Effects |
Issue Date | 2009 |
Publisher | Wiley - 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? |
Abstract | Ultrafast 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 Identifier | http://hdl.handle.net/10722/168393 |
ISSN | 2023 Impact Factor: 2.3 2023 SCImago Journal Rankings: 0.623 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | ElKhoury, PZ | en_US |
dc.contributor.author | Kwok, WM | en_US |
dc.contributor.author | Guan, X | en_US |
dc.contributor.author | Ma, C | en_US |
dc.contributor.author | Phillips, DL | en_US |
dc.contributor.author | Tarnovsky, AN | en_US |
dc.date.accessioned | 2012-10-08T03:18:24Z | - |
dc.date.available | 2012-10-08T03:18:24Z | - |
dc.date.issued | 2009 | en_US |
dc.identifier.citation | Chemphyschem, 2009, v. 10 n. 11, p. 1895-1900 | en_US |
dc.identifier.issn | 1439-4235 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/168393 | - |
dc.description.abstract | Ultrafast 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.language | eng | en_US |
dc.publisher | Wiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.chemphyschem.com | en_US |
dc.relation.ispartof | ChemPhysChem | en_US |
dc.subject | Density Functional Calculations | en_US |
dc.subject | Iodoform | en_US |
dc.subject | Isomerization | en_US |
dc.subject | Photochemistry | en_US |
dc.subject | Solvent Effects | en_US |
dc.title | Photochemistry of iodoform in methanol: Formation and fate of the iso-CHI2-I photoproduct | en_US |
dc.type | Article | en_US |
dc.identifier.email | Ma, C:macs@hkucc.hku.hk | en_US |
dc.identifier.email | Phillips, DL:phillips@hku.hk | en_US |
dc.identifier.authority | Ma, C=rp00758 | en_US |
dc.identifier.authority | Phillips, DL=rp00770 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1002/cphc.200900122 | en_US |
dc.identifier.pmid | 19373794 | - |
dc.identifier.scopus | eid_2-s2.0-67749103742 | en_US |
dc.identifier.hkuros | 172143 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-67749103742&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 10 | en_US |
dc.identifier.issue | 11 | en_US |
dc.identifier.spage | 1895 | en_US |
dc.identifier.epage | 1900 | en_US |
dc.identifier.isi | WOS:000268817800026 | - |
dc.publisher.place | Germany | en_US |
dc.identifier.scopusauthorid | ElKhoury, PZ=23488230800 | en_US |
dc.identifier.scopusauthorid | Kwok, WM=7103129332 | en_US |
dc.identifier.scopusauthorid | Guan, X=8313149700 | en_US |
dc.identifier.scopusauthorid | Ma, C=7402924979 | en_US |
dc.identifier.scopusauthorid | Phillips, DL=7404519365 | en_US |
dc.identifier.scopusauthorid | Tarnovsky, AN=6602307614 | en_US |
dc.identifier.issnl | 1439-4235 | - |