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- Publisher Website: 10.1021/jp046060z
- Scopus: eid_2-s2.0-14544305450
- PMID: 16833436
- WOS: WOS:000226955800038
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Article: Ultraviolet photolysis of CH2I2 in methanol: O-H insertion and HI elimination reactions to form a dimethoxymethane product
Title | Ultraviolet photolysis of CH2I2 in methanol: O-H insertion and HI elimination reactions to form a dimethoxymethane product |
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Authors | |
Issue Date | 2005 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/jpca |
Citation | Journal Of Physical Chemistry A, 2005, v. 109 n. 6, p. 1247-1256 How to Cite? |
Abstract | Ultraviolet photolysis of low concentrations of CH2I2 in methanol solution found that CH2I2 is converted into dimethoxymethane and some H+ and I- products. Picosecond time-resolved resonance Raman (ps-TR3) experiments observed that the isodiiodomethane (CH2I-I) photoproduct decayed faster as the concentration of methanol increases, suggesting that isodiiodomethane is reacting with methanol. Ab initio calculations indicate isodiiodomethane is able to react with methanol via an O-H insertion/HI elimination to form an iodoether (ICH2-O-CH3) and HI products. The iodoether can then further react via another O-H insertion/ HI elimination reaction to form the dimethoxymethane (CH3-O-CH2-O-CH3) observed in the photochemistry experiments. A reaction mechanism consistent with these experimental and theoretical observations is proposed. |
Persistent Identifier | http://hdl.handle.net/10722/167895 |
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 0.604 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Guan, X | en_US |
dc.contributor.author | Lin, X | en_US |
dc.contributor.author | Kwok, WM | en_US |
dc.contributor.author | Du, Y | en_US |
dc.contributor.author | Li, YL | en_US |
dc.contributor.author | Zhao, C | en_US |
dc.contributor.author | Wang, D | en_US |
dc.contributor.author | Phillips, DL | en_US |
dc.date.accessioned | 2012-10-08T03:12:38Z | - |
dc.date.available | 2012-10-08T03:12:38Z | - |
dc.date.issued | 2005 | en_US |
dc.identifier.citation | Journal Of Physical Chemistry A, 2005, v. 109 n. 6, p. 1247-1256 | en_US |
dc.identifier.issn | 1089-5639 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/167895 | - |
dc.description.abstract | Ultraviolet photolysis of low concentrations of CH2I2 in methanol solution found that CH2I2 is converted into dimethoxymethane and some H+ and I- products. Picosecond time-resolved resonance Raman (ps-TR3) experiments observed that the isodiiodomethane (CH2I-I) photoproduct decayed faster as the concentration of methanol increases, suggesting that isodiiodomethane is reacting with methanol. Ab initio calculations indicate isodiiodomethane is able to react with methanol via an O-H insertion/HI elimination to form an iodoether (ICH2-O-CH3) and HI products. The iodoether can then further react via another O-H insertion/ HI elimination reaction to form the dimethoxymethane (CH3-O-CH2-O-CH3) observed in the photochemistry experiments. A reaction mechanism consistent with these experimental and theoretical observations is proposed. | en_US |
dc.language | eng | en_US |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/jpca | en_US |
dc.relation.ispartof | Journal of Physical Chemistry A | en_US |
dc.title | Ultraviolet photolysis of CH2I2 in methanol: O-H insertion and HI elimination reactions to form a dimethoxymethane product | en_US |
dc.type | Article | en_US |
dc.identifier.email | Phillips, DL:phillips@hku.hk | en_US |
dc.identifier.authority | Phillips, DL=rp00770 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1021/jp046060z | en_US |
dc.identifier.pmid | 16833436 | - |
dc.identifier.scopus | eid_2-s2.0-14544305450 | en_US |
dc.identifier.hkuros | 99135 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-14544305450&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 109 | en_US |
dc.identifier.issue | 6 | en_US |
dc.identifier.spage | 1247 | en_US |
dc.identifier.epage | 1256 | en_US |
dc.identifier.isi | WOS:000226955800038 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Guan, X=8313149700 | en_US |
dc.identifier.scopusauthorid | Lin, X=35205535200 | en_US |
dc.identifier.scopusauthorid | Kwok, WM=7103129332 | en_US |
dc.identifier.scopusauthorid | Du, Y=35310175500 | en_US |
dc.identifier.scopusauthorid | Li, YL=27168456500 | en_US |
dc.identifier.scopusauthorid | Zhao, C=7403563836 | en_US |
dc.identifier.scopusauthorid | Wang, D=7407071795 | en_US |
dc.identifier.scopusauthorid | Phillips, DL=7404519365 | en_US |
dc.identifier.issnl | 1089-5639 | - |