Direct Observation of a Transiently Formed Isomer during Iodoform Photolysis in Solution by Time-Resolved X-ray Liquidography

Cited 0 time in webofscience Cited 0 time in scopus
91 Viewed 6 Downloaded
Title
Direct Observation of a Transiently Formed Isomer during Iodoform Photolysis in Solution by Time-Resolved X-ray Liquidography
Author(s)
Chi Woo Ahn; Hosung Ki; Joonghan Kim; Jeongho Kim; Sungjun Park; Yunbeom Lee; Kyung Hwan Kim; Qingyu Kong; Jiwon Moon; Martin Nors Pedersen; Michael Wulff; Hyotcherl Ihee
Publication Date
2018-02
Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.9, no.3, pp.647 - 653
Publisher
AMER CHEMICAL SOC
Abstract
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 Å and 133.9 ± 0.8°, respectively. © 2018 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/4660
ISSN
1948-7185
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
134.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse