The 1B(u)-type singlet state of beta-carotene as a precursor of the radical cation found in chloroform solution by sub-picosecond time-resolved absorption spectroscopy
文献类型:期刊论文
作者 | Zhang, JP; Fujii, R; Koyama, Y; Rondonuwu, FS; Watanabe, Y; Mortensen, A; Skibsted, LH |
刊名 | CHEMICAL PHYSICS LETTERS
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出版日期 | 2001-11-09 |
卷号 | 348期号:3-4页码:235-241 |
ISSN号 | 0009-2614 |
英文摘要 | Generation of the radical cation from 1B(u)-type states (1B(u)(+) and/or 1B(u)(-)) of all-trans-beta -carotene in chloroform was demonstrated by sub-picosecond time-resolved absorption spectroscopy. In the visible region, ground-state absorption bleaching completely recovered in n-hexane but not in chloroform. In near-infrared, broad transient absorptions from 1B(u)(+) and 1B(u)(+) states appeared and decayed within I ps in both solvents, while weak transient absorption ascribable to the cation appeared and stayed until 40 ps after excitation in chloroform, but not in n-hexane. In chloroform, direct transformation from the 1B(u)-type singlet state to the radical cation had a time constant 0.14 +/- 0.03 ps. (C) 2001 Elsevier Science B.V. All rights reserved. |
语种 | 英语 |
WOS记录号 | WOS:000172089900011 |
出版者 | ELSEVIER SCIENCE BV |
源URL | [http://ir.iccas.ac.cn/handle/121111/76703] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Skibsted, LH |
作者单位 | 1.Royal Vet & Agr Univ, Dept Dairy & Food Sci, DK-1958 Frederiksberg C, Denmark 2.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem & Unstable & Stable Spe, Beijing 100080, Peoples R China 3.Kwansei Gakuin Univ, Fac Sci, Sanda 6691337, Japan |
推荐引用方式 GB/T 7714 | Zhang, JP,Fujii, R,Koyama, Y,et al. The 1B(u)-type singlet state of beta-carotene as a precursor of the radical cation found in chloroform solution by sub-picosecond time-resolved absorption spectroscopy[J]. CHEMICAL PHYSICS LETTERS,2001,348(3-4):235-241. |
APA | Zhang, JP.,Fujii, R.,Koyama, Y.,Rondonuwu, FS.,Watanabe, Y.,...&Skibsted, LH.(2001).The 1B(u)-type singlet state of beta-carotene as a precursor of the radical cation found in chloroform solution by sub-picosecond time-resolved absorption spectroscopy.CHEMICAL PHYSICS LETTERS,348(3-4),235-241. |
MLA | Zhang, JP,et al."The 1B(u)-type singlet state of beta-carotene as a precursor of the radical cation found in chloroform solution by sub-picosecond time-resolved absorption spectroscopy".CHEMICAL PHYSICS LETTERS 348.3-4(2001):235-241. |
入库方式: OAI收割
来源:化学研究所
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