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题名: Photodissociation of gaseous metal ion-nucleobase complexes: Mg+-uracil and Mg+-thymine
作者: Liu, HC;  Sun, JL;  Hu, YH;  Han, KL;  Yang, SH
刊名: CHEMICAL PHYSICS LETTERS
发表日期: 2004-05-11
DOI: 10.1016/j.cplett.2004.03.115
卷: 389, 期:4-6, 页:342-347
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: Mg+-nucleobase complexes have been generated for the first time by a laser-ablation technique. Mg+-uracil and Mg+-thymine are studied by photodissociation and density functional theory calculations. The evaporative loss of Mg+ is found to be the dominant channel after photoexcitation. A number of photoproducts due to the nucleobase lesions have also been detected in the photon energy region of 3.4 eV, whereas only one of them is identified around 5.0 eV. The site of photoinduced C-N and/or C-C bond rupture is found to be at the carbonyl group where the metal is bound. A charge-transfer photoproduct is observed only from Mg+-thymine. (C) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: NUCLEIC-ACID BASES ;  CHARGE-TRANSFER ;  BOND-ENERGIES ;  GAS-PHASE ;  ADENINE ;  SPECTROSCOPY ;  DISSOCIATION ;  CHEMISTRY ;  BINDING ;  SITES
语种: 英语
WOS记录号: WOS:000221305500023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139338
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Liu, HC,Sun, JL,Hu, YH,et al. Photodissociation of gaseous metal ion-nucleobase complexes: Mg+-uracil and Mg+-thymine[J]. CHEMICAL PHYSICS LETTERS,2004,389(4-6):342-347.
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