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学科主题物理化学
Hydrogen bonding tunes the early stage of hydrogen-atom abstracting reaction
Yang, Yang1,2; Liu, Lei1; Chen, Junsheng1; Han, Keli1; Han KL(韩克利)
刊名PHYSICAL CHEMISTRY CHEMICAL PHYSICS
2014-09-07
DOI10.1039/c4cp01371a
16期:33页:17828-17834
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
关键词[WOS]ELECTRON-TRANSFER ; EXCITED-STATE ; FLUORESCENCE ; TRIPLETS ; SOLVENTS ; PHOTOCHEMISTRY ; MECHANISM ; DYNAMICS ; PHENOLS
英文摘要The spontaneous and collision-assisted hydrogen-atom abstracting reaction (HA) dynamics of triplet benzil are investigated through the combination of transient absorption spectroscopy with TD-DFT calculations. HA dynamics exhibit a remarkable dependence on the hydrogen donor properties. The effects of the triplet-state hydrogen bonding on the reaction dynamics are illustrated. In particular, it is experimentally observed that strengthened triplet-state hydrogen bonding could accelerate the HA, whereas weakened triplet-state hydrogen bonding would postpone the HA. The triplet-state hydrogen bonding has great influences on the early stage of the HA reaction, while the bond dissociation energy of the hydrogen donors determines the subsequent reaction pathways. Protic solvents could sustain longer lifetimes of the excited-state intermediate formed after HA than non-protic solvents by 10 mu S. This investigation provides insights into the HA dynamics and guidance to improve the product efficiency of photochemical reactions.
语种英语
WOS记录号WOS:000341064800053
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/144191
专题中国科学院大连化学物理研究所
通讯作者Han KL(韩克利)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Chem Lasers, Dalian 116023, Peoples R China
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GB/T 7714
Yang, Yang,Liu, Lei,Chen, Junsheng,et al. Hydrogen bonding tunes the early stage of hydrogen-atom abstracting reaction[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2014,16(33):17828-17834.
APA Yang, Yang,Liu, Lei,Chen, Junsheng,Han, Keli,&韩克利.(2014).Hydrogen bonding tunes the early stage of hydrogen-atom abstracting reaction.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,16(33),17828-17834.
MLA Yang, Yang,et al."Hydrogen bonding tunes the early stage of hydrogen-atom abstracting reaction".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 16.33(2014):17828-17834.
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