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Direct Observation ...
Direct Observation of a Transiently Formed Isomer During lodoform Photolysis in Solution by Time-Resolved X-ray Liquidography
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Ahn, Chi Woo (author)
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Ki, Hosung (author)
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Kim, Joonghan (author)
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Kim, Jeongho (author)
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Park, Sungjun (author)
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Lee, Yunbeom (author)
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- Kim, Kyung Hwan (author)
- Stockholms universitet,Fysikum,Institute for Basic Science (IBS), Republic of Korea
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Kong, Qingyu (author)
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Moon, Jiwon (author)
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Pedersen, Martin Nors (author)
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Wulff, Michael (author)
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Ihee, Hyotcherl (author)
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(creator_code:org_t)
- 2018-01-22
- 2018
- English.
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In: The Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185. ; 9:3, s. 647-653
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Photolysis of iodoform (CHI3) in solution has been extensively studied, but its reaction mechanism remains elusive. In particular, iso-iodoform (iso-CHI2-I) is formed as a product of the photolysis reaction, but its detailed structure is not known, and whether it is a major intermediate species has been controversial. Here, by using time-resolved X-ray liquidography, we determined the reaction mechanism of CHI3 photodissociation in cyclohexane as well as the structure of iso-CHI2-I. Both iso-CHI2-I and CHI2 radical were found to be formed within 100 ps with a branching ratio of 40:60. Iodine radicals (I), formed during the course of CHI3 photolysis, recombine nongeminately with either CHI2 or I. Based on our structural analysis, the I-I distance and the C-I-I angle of iso-CHI2-I were determined to be 2.922 +/- 0.004 angstrom and 133.9 +/- 0.8 degrees, respectively.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ahn, Chi Woo
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Ki, Hosung
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Kim, Joonghan
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Kim, Jeongho
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Park, Sungjun
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Lee, Yunbeom
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show more...
-
Kim, Kyung Hwan
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Kong, Qingyu
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Moon, Jiwon
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Pedersen, Martin ...
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Wulff, Michael
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Ihee, Hyotcherl
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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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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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The Journal of P ...
- By the university
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Stockholm University