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题名: Two-Dimensional Infrared Study of C-13-Natural Abundant Vibrational Transition Reveals Intramolecular Vibrational Redistribution Rather than Fluxional Exchange in Mn(CO)(5)Br
作者: Yang, Fan1; Zhao, Juan1; Wang, Jianping1
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2016-02-25
卷: 120, 期:7, 页:1304-1311
收录类别: SCI
英文摘要: In this work, molecular-symmetry enhanced (CO)-C-13 natural abundant isotopic infrared transition was identified in Mn(CO)(5)Br dissolved in CCl4 by FTIR spectroscopy. Diagonal and associated off-diagonal two-dimensional IR (2D IR) peaks of the (CO)-C-13-species were found to be spectrally separated from the all-(CO)-C-12 species, allowing a direct probe of the C-13 natural abundant ensemble. Temperature-dependent FTIR experiment showed no evidence of ligand exchange in the metal carbonyl complex. Intramolecular vibrational redistribution dynamics among the CO stretching vibrational states were extracted using population-time dependent 2D IR diagonal and off-diagonal peaks for both radial mono-(CO)-C-13 and all-(CO)-C-12 isotopomers. This work demonstrates the potential use of natural abundant isotopic molecular species as a probe for revealing equilibrium and nonequilibrium structural dynamics in condensed-phase molecular systems.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35856
Appears in Collections:分子反应动力学实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, Mol React Dynam Lab, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
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