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Structural determin...
Structural determination of a transient isomer of CH2I2 by picosecond x-ray diffraction
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Davidsson, Jan (author)
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- Poulsen, Jens Aage, 1972 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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Cammarata, Marco (author)
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Georgiou, Panos (author)
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Wouts, Remco (author)
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Katona, Gergely, 1975 (author)
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- Jacobson, Frida, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Plech, Anton (author)
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Wulff, Michael (author)
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- Nyman, Gunnar, 1957 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Neutze, Richard, 1969 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,Chalmers tekniska högskola,Chalmers University of Technology,University of Gothenburg
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(creator_code:org_t)
- 2005
- 2005
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 94:24
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Abstract
Subject headings
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- Ultrafast time-resolved spectroscopic studies of complex chemical reactions in solution are frequently hindered by difficulties in recovering accurate structural models for transient photochemical species. Time-resolved x-ray and electron diffraction have recently emerged as techniques for probing the structural dynamics of short lived photointermediates. Here we determine the structure of a transient isomer of photoexcited CH2I2 in solution and observe the downstream reactions of the initial photoproducts. Our results illustrate how geminate recombination proceeds via the formation of a transient covalent bond onto the iodine atom remaining with the parent molecule. Further intramolecular rearrangements are thus required for the CH2I-I isomer to return to CH2I2. The generation of I-3(-) from those iodine radicals escaping the solvent cage is also followed with time.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- RESONANCE RAMAN OBSERVATION
- SOLUTION-PHASE
- ALKYL-HALIDES
- PHOTODISSOCIATION DYNAMICS
- ULTRAVIOLET PHOTOLYSIS
- ORGANIC TRACES
- DIIODOMETHANE
- CYCLOPROPANATION
- PHOTOCHEMISTRY
- PHOTOPRODUCT
- RESONANCE RAMAN OBSERVATION
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Davidsson, Jan
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Poulsen, Jens Aa ...
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Cammarata, Marco
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Georgiou, Panos
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Wouts, Remco
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Katona, Gergely, ...
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show more...
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Jacobson, Frida, ...
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Plech, Anton
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Wulff, Michael
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Nyman, Gunnar, 1 ...
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Neutze, Richard, ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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Physical Review ...
- By the university
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University of Gothenburg
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Chalmers University of Technology