Time-resolved vibrational spectroscopy

Zhu L, Wang W, Sage J T and Champion P M 1995 Femtosecond time-resolved vibrational spectroscopy of heme proteins J. Raman Spectrosc. 26 527-34... 

Cwrutsky J C, Li M, Culver J P, Sarisky M J, Yodh A G and Hoohstrasser R M 1993 Vibrational dynamios of oondensed phase moleoules studied by ultrafast infrared speotrosoopy Time Resolved Vibrational Spectroscopy VI (Springer Proc. in Physics 74) ed A Lau (New York Springer) pp 63-7... 

G. H. Atkinson in Time-Resolved Vibrational Spectroscopy, Ed. G. H. Atkinson, Academic Press, New York, 1983, p. 179. 

A promising recent development in the study of nitrenium ions has been the introduction of time-resolved vibrational spectroscopy for their characterization. These methods are based on pulsed laser photolysis. However, they employ either time resolved IR (TRIR) or time-resolved resonance Raman (TRRR) spectroscopy as the mode of detection. While these detection techniques are inherently less sensitive than UV-vis absorption, they provide more detailed and readily interpretable spectral information. In fact, it is possible to directly calculate these spectra using relatively fast and inexpensive DFT and MP2 methods. Thus, spectra derived from experiment can be used to validate (or falsify) various computational treatments of nitrenium ion stmctures and reactivity. In contrast, UV-vis spectra do not lend themselves to detailed structural analysis and, moreover, calculating these spectra from first principles is still expensive and highly approximate. 

More recently, time-resolved vibrational spectroscopy has been applied to nitrenium ions. These techniques hold much promise for future research as they can provide more detailed structural information about nitrenium ions. In addition, the vibrational frequencies measured in this way can be used to assess the accuracy of theoretical calculations. 

J. R. Schoonover and G. P. Strouse, Time-Resolved Vibrational Spectroscopy of Electronically Excited Inorganic Complexes in Solution, Chem. Rev. 1998, 98, 1335. 

In this paper we report the use of spectrally resolved two-colour three-pulse photon echoes to expand the information that can be obtained from time-resolved vibrational spectroscopy. The experiments allow the study of intramolecular dynamics and vibrational structure in both the ground and excited electronic states and demonstrate the potential of the technique for studying structural dynamics. 

Owrutsky JC, Li M, Culver JP, Sarisky MJ, Yodh AG, Hochstrasser RM. Vibrational dynamics of condensed phase molecules studied by ultrafast infrared spectroscopy. In Lau A, Siebert F, Werncke W, eds. Time Resolved Vibrational Spectroscopy IV. Berlin Springer-Verlag, 1993 63-67. 

Dhar L, Rogers JA, Nelson KA. Time-resolved vibrational spectroscopy in the impulsive limit. Chem Rev 1994 94 157-193. 

Vos, M.H., Rappaport, F., Lambry, J.-Ch., Breton, J., and Martin, J.-L. (1994) Probing low-frequency vibrational motion in bacterial reaction by femtosecond,absorption spectroscopy, Springer Proc. Phys. 74 (Time-Resolved Vibrational Spectroscopy VI), 219-22. 

Lau A, Siebert S, Wemke W (eds) (1993) Time resolved vibrational spectroscopy, vol 6. Springer, Berlin... 

A. Laubereau, M. Stockburger, Eds., Time Resolved Vibrational Spectroscopy, Springer, Berlin, 1986. 

K. Yoshihara, H. Pal, H. Shirota, Y. Nagasawa and K. Tomianga, Los Alamos Natl Lab. [Rep] LA, 1997, (LA 13290-C, Seventh International Conference on Time-Resolved Vibrational Spectroscopy 1995), 69. 

A. M. Stacy and R. P. Van Duyne, Time Resolved Vibrational Spectroscopy Academic Press, New York, p. 377. 

Proceeding of the "International Conference on Time Resolved Vibrational Spectroscopy", Lake Placid, New York, Aug. 16-21, 1982 G. Atkinson, (Department of Chemistry, Syracuse University), Ed.. The references on most of the time resolved vibrational spectroscopic applications between 1976-82 can be obtained from the papers presented in this conference. 

Figure 11.10 shows the calculated vibrational modes of HBT which appear in the transient absorption measurements [33]. The coherent excitation of the 113 cm 1 mode was also observed by time resolved vibrational spectroscopy [10]. In the frequency range up to 700 cm several other eigenmodes exist but their... 

R.K. Chang, in G.H. Atkinson (Ed.), Time-resolved Vibrational Spectroscopy, Academic Press, New York, 1982. 

Aversion of this material appears in a special issue of the Journal of Physical Chemistry dedicated to the Proceedings of the International Conference on Time-Resolved Vibrational Spectroscopy (TRVS IX), May 16-22 1999, Tucson, Arizona. See Kirkwood J C, Ulness D J and Albrecht A C 2000 On the classification of the electric field spectroscopies applications to Raman scattering J. Phys. Chem. A 104 4167-73. 

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