Spectroscopy laser chemistry

Quack M 1993 Molecular quantum dynamics from high resolution spectroscopy and laser chemistry J. Mol. Struct. 292 171-95... 

Quack M 1992 Time dependent intramolecular quantum dynamics from high resolution spectroscopy and laser chemistry Time Dependent Quantum Molecular Dynamics Experiment and Theory. Proc. NATO ARW 019/92 (NATO ASI Ser. Vol 299) ed J Broeckhove and L Lathouwers (New York Plenum) pp 293-310... 

Quack M 1981 Faraday Discuss. Chem. Soc. 71 309-11, 325-6, 359-64 (Discussion contributions on flexible transition states and vibrationally adiabatic models statistical models in laser chemistry and spectroscopy normal, local, and global vibrational states)... 

Hepburn J W 1995 Generation of coherent vacuum ultraviolet radiation applications to high-resolution photoionization and photoelectron spectroscopy Laser Techniques in Chemistry vol 23, ed A B Myers and T R Rizzo (New York Wley) pp 149-83... 

The following case study contains examples of several topics discussed in previous sections, including some aspects of laser technology, laser spectroscopy and laser chemistry. A variety of lasers and laser techniques are applied in a straightforward manner to the problem of ascertaining structural and dynamical information on an excited electronic state of wide chemical interest. This information is obtained rather simply, illustrating the potential of laser techniques in the resolution of problems in solution chemistry. 

Wang Y, Mccreery RL. Evaluation of a diode-laser charge coupled device spectrometer for near-infrared Raman spectroscopy. Analytical Chemistry 1989, 61, 2647-2651. 

Robinson, G. W., Caughey, T. A., Auerbach, R. A. Picosecond emission spectroscopy with an ultraviolet sensitive streak camera. In Advances in Laser Chemistry/Springer Series in Chemical Physics. Tlewafl, A. H. (Ed.) p. 108, Berlin, Heidelberg, New York Springer 1978 Robinson, G. W. et al. J. MoL Struct 47, 221 (1978)... 

E. N. Kaliteevskaya, T. K. Razumova and A. N. Tamovskii, Proc. SPIE-Int. Soc. Opt. Eng., 1999, 3732 (Laser Spectroscopy and Optical Diagnostics Novel Trends and Applications in Laser Chemistry, Biophysics and Biomedicine), 226. 

Transient intermediates are most commonly observed by their absorption (transient absorption spectroscopy see ref. 185 for a compilation of absorption spectra of transient species). Various other methods for creating detectable amounts of reactive intermediates such as stopped flow, pulse radiolysis, temperature or pressure jump have been invented and novel, more informative, techniques for the detection and identification of reactive intermediates have been added, in particular EPR, IR and Raman spectroscopy (Section 3.8), mass spectrometry, electron microscopy and X-ray diffraction. The technique used for detection need not be fast, provided that the time of signal creation can be determined accurately (see Section 3.7.3). For example, the separation of ions in a mass spectrometer (time of flight) or electrons in an electron microscope may require microseconds or longer. Nevertheless, femtosecond time resolution has been achieved,186 187 because the ions or electrons are formed by a pulse of femtosecond duration (1 fs = 10 15 s). Several reports with recommended procedures for nanosecond flash photolysis,137,188-191 ultrafast electron diffraction and microscopy,192 crystallography193 and pump probe absorption spectroscopy194,195 are available and a general treatise on ultrafast intense laser chemistry is in preparation by IUPAC. 

H. Hollenstein, D. Luckhaus, J. Pochert, M. Quack, G. Seyfang, Synthesis, structure, high-resolution spectroscopy, and laser chemistry of fluorooxirane and 2,2-[ H2]-fluorooxirane, Angew. Chem. Int. Ed. Engl. 36 (1997) 140-143. 

One of the attractive goals of laser spectroscopy of reactive collision processes is the basic understanding of chemical reactions. The fundamental question in laser chemistry of how the excitation energy of the reactants influences the reaction probability and the internal state distribution of the reaction products can, at least partly, be answered by detailed laser-spectroscopic investigations. Section 8.4 treats some experimental techniques in this field. 

H. TeUe, A. Gonzales Urena, R.J. Donovan, Laser Chemistry Spectroscopy, Dynamics and Applications (WUey, New York, 2007)... 

In particular, the applications of laser spectroscopy in chemistry, biology medicine and for the solution of technical problems have made rapid progress. This is illustrated by several examples in the last chapter. 

Quantum Electronics Laser Spectroscopy Photophysical Chemistry Optical Physics Optical Communications... 

Salt purity, density, chemical composition, and other properties. In the laboratory, high-temperature salt properties are measured by spectroscopy. Laser or other light is sent through the salt, and the transmission of the light is measured as a function of frequency. In more sophisticated systems, secondary emission lines are measured. Salt impurities that can be measured to very low concentrations include uranium, the actinides, iron, chromium, and nickel. The chemical valence state can also be measured. This is likely to be the preferred method for monitoring the concentration of impurities and the redox potential of the salt and thus the performance of the salt cleanup systems. It would be the equivalent of the instrumentation used to monitor water chemistry in an LWR. 

Laser Chemistry Spectroscopy, Dynamics and Applications Helmut H. Telle, Angel Gonzalez Urena Robert J. Donovan 2007 John Wiley Sons, Ltd ISBN 978-0-471-48570-4 (HB) ISBN 978-0-471-48571-1 (PB)... 

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