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Mid-Infrared Pump-Probe Spectroscopy of Dimeric pi-Cyclopentadienyl-dicarbonyliron [CpFe(CO)(2)](2)
Yang Fan; Liu Ying-Liang; Wang Jian-Ping
关键词Dimeric Pi-cyclopentadienyldicarbonyliron Femtosecond Infrared Pump-probe Spectroscopy Vibrational Relaxation Dynamics Molecular Structural Dynamics
刊名ACTA PHYSICO-CHIMICA SINICA
2012-04-01
DOI10.3866/PKU.WHXB201202023
28期:4页:759-765
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]2-DIMENSIONAL INFRARED-SPECTROSCOPY ; RESOLVED IR SPECTROSCOPY ; CRYSTAL STRUCTURE ; CIS-ISOMER ; 2D IR ; PHOTOCHEMISTRY ; TETRACARBONYL ; PHOTOREACTIONS ; CP2FE2(CO)4 ; PHOSPHINES
英文摘要The structural and vibrational dynamics of the non-bridged C O stretching vibrations of two different tautomers of dimeric pi-cyclopentadienyldicarbonyliron [CpFe(CO)(2)](2) in CH2Cl2 were examined using steady-state and femtosecond infrared pump-probe methods at 5-mu m wavelength. The two main species in [CpFe(CO)(2)](2) had a cis:trans molar ratio of 1.7, and showed different vibrational and rotational relaxation dynamics. Both species showed biexponential decay in their two C O stretching vibrational excited-state populations, with a fast component (< 1 ps) and a slow component (20 ps). The former was believed to be related to the rapid dephasing processes of the coherent state caused by broadband excitation, while the latter was the typical lifetime for the C O stretching vibrational excited state. Having a significant permanent dipole, the cis structure could interact strongly with solvent, resulting in relatively slower rotational dynamics. Our work demonstrated that the frequency and vibrational-rotational dynamics of the non-bridged C O stretching vibrations were very sensitive to both molecular structures and the solvent.
语种英语
WOS记录号WOS:000302764400003
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被引频次:3[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/321008/138102
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
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Yang Fan,Liu Ying-Liang,Wang Jian-Ping. Mid-Infrared Pump-Probe Spectroscopy of Dimeric pi-Cyclopentadienyl-dicarbonyliron [CpFe(CO)(2)](2)[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(4):759-765.
APA Yang Fan,Liu Ying-Liang,&Wang Jian-Ping.(2012).Mid-Infrared Pump-Probe Spectroscopy of Dimeric pi-Cyclopentadienyl-dicarbonyliron [CpFe(CO)(2)](2).ACTA PHYSICO-CHIMICA SINICA,28(4),759-765.
MLA Yang Fan,et al."Mid-Infrared Pump-Probe Spectroscopy of Dimeric pi-Cyclopentadienyl-dicarbonyliron [CpFe(CO)(2)](2)".ACTA PHYSICO-CHIMICA SINICA 28.4(2012):759-765.
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