期刊
JOURNAL OF CHEMICAL PHYSICS
卷 121, 期 12, 页码 5943-5957出版社
AMER INST PHYSICS
DOI: 10.1063/1.1779575
关键词
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We present a general expression for the polarization dependence of transient two-dimensional IR spectroscopy (T2D-IR), a technique designed to measure 2D-IR spectra of transient species. T2D-IR is a UV pump narrowband-IR-pump broadband-IR-probe experiment of fifth order in the laser field which involves up to three different transition dipole moments. The UV pulse adds an additional degree of freedom in polarization as compared to 2D-IR spectroscopy and increases the versatility of signal manipulation and the potential structural information content of the signals. The polarization conditions leading to a maximum of structural information are discussed. Important special cases of polarization conditions are formulated. The application of polarization selectivity is demonstrated for different types of T2D-IR experiments on photo triggered metal-to-ligand charge transfer in the model system [Re(CO)(3)(dmbpy)Cl]. (C) 2004 American Institute of Physics.
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