Infrared matrix isolation studies

During a matrix-isolation infrared study of the Fg-ClaO and CIF-Oj systems, a new species was observed by Andrews et al. (5) at 733.8 cm which was tentatively assigned to the ClFgO radical. However, more data are needed for the positive identification of this species. 

Vanadium vapor has been used to prepare dibenzenevanadium (59), and it is expected that alkylbenzenes would also react smoothly with the vapor. A matrix isolation infrared study in which sputtered niobium atoms were reacted with benzene in an argon matrix at 30 K has given evidence for the formation of dibenzeneniobium (36). 

Szczepaniak K, Szczepaniak M (1987) Matrix isolation infrared studies of nucleic acid constituents. J Mol Struct 156 29-42... 

In view of the matrix-isolation infrared studies, the theoretical calculations, and those studies of aluminum beam-water reactions, it is of considerable interest to probe the electronic structure of aluminum metal atom hydration reaction intermediates and products Isolated in rare-gas matrices. Such a study will form a useful adjunct to the infrared research. A mapping of the electronic structure of these species will provide a data set to which further theoretical calculations may compare. A more focused elucidation of the nature of the gas-phase aluminum hydration reaction s chemiluminescent continuum emitter may be provided... 

Hauge, R.H., Kauffman, J.W., Fredln, L., and Margrave, J.L., "Matrix Isolation Infrared Studies of Metal Atom-Water Reactions", 181st National ACS Meeting, Atlanta, 1981, and references therein. 

Szczesniak M, Szczepaniak K, Kwiatkowski JS, Kubulat K, Person WB (1988) Matrix-isolation infrared studies of nucleic-acid constituents. 5. Experimental matrix-isolation and theoretical ab initio SCF molecular-orbital studies of the infrared-spectra of cytosine monomers. J Am Chem Soc 110 8319-8330... 

H Torii, T Tatsumi, T Kanazawa, M Tasumi. Effects of intermolecular hydrogen-bonding interactions on the amide-I mode of A-methylacetamide Matrix-isolation infrared studies and ab initio molecular orbital calculations. J Phys Chem B 102 309-314, 1998. 

Cryogenic inorganic chemistry a review of metal-gas reactions as studied by matrix isolation infrared and Raman spectroscopic techniques, G. A. Ozin and A. Vander Voet, Prog. Inorg. Chem., 1975,19,105-172 (303). 

Stepanian, S. G., Reva, D., Radchenko, E. D., Adamowicz, L., 1998b, Conformational Behavior of Alanine. Matrix-Isolation Infrared and Theoretical DFT and ab Initio Study , J. Phys. Chem. A, 102, 4623. 

The vapor phase species produced by heating solid Os02F3 in vacuo have been isolated in low-temperature matrices and studied by matrix-isolation infrared spectroscopy and by mass spectrometry [361], Both studies indicate a complex mode of decomposition, and in addition to the identification of OsOF4 (C4v) and Os03F2 ( >3/i), the infrared spectra show two additional features assigned to the Os02F3 molecule with D3/, point symmetry. 

Yeo, G. A., and Ford, T. A., The combined use ofab initio molecular orbital theory and matrix isolation infrared spectroscopy in the study of molecular interactions. Struct. Chem. 3, 75-93 (1992). 

Ault, B. S., Balboa, A., Tevault, D. and Hurley, M. (2004) Matrix isolation infrared spectroscopy and theoretical study of the interaction of water and dimethyl methylphosphonate, J. Phys. Chem. A 108, 10094-10098. 

R. D. Brown, A.P. Pierlot, MiUimeter-wave spectroscopy of biomolecules alanine, J. Am. Chem. Soc. 115 (1993) 9687 S.G. Stepanian, l.D. Reva, E.D. Radchenko, L. Adamowicz, Conformational Behavior of a-Alanine. Matrix-Isolation Infrared and Theoretical DFT and ab Initio Study, J. Phys. Chem. A 102 (1998) 4623 B. Lambie, R. Ramaekers, G. Maes, On the contribution of intramolecular H-bonding entropy to the conformational stability of alanine conformations, Spectrochim. Acta A 59 (2003) 1387. 

Since lowering of temperature will narrow the absorption bands, it will produce better resolution, which will allow one to identify single compounds and isomers. This leads to the technique of matrix isolation infrared spectrometry (MI/IR) which was used extensively to study the IR properties of molecules" ". In this technique the molecules... 

Fig. 29 Photoinduced transformation taken place on o-nitroaniline isolated in an argon matrix upon UV irradiation at 185nm. ° Reprinted from C. Zhang and M. Chen, Photoinduced intramolecular hydrogen transfer in ortho-nitroaniline A matrix-isolation infrared spectroscopic and quantum-chemical study, J, Mol. Struct, 2013, 1037, 144-147, with permission from Elsevier,...

Kar, B. P., Ramanathan, N., Sundararajan, K., Viswanathan, K. S. (2012). Conformations of dimethyl carbonate and its complexes with water A matrix isolation infrared and ah initio study. Journal of Molecular Structure, 1024, 84-93. 

W. Levason, J. S. Ogden, A. J. Rest, and J. W. Turff, J. Chem. Soc., Dalton Trans., 1877 (1982). Tetrachloro-oxo-osmium(VI) A New Synthesis, and Matrix-Isolation Infrared and Ultraviolet-Visible Studies. 

Futami Y, Chin MLS, Kudoh S, Takayanagi M, Nakata M (2003) Conformations of nitro-substituted spiropyran and merocyanine studied by low-temperature matrix-isolation infrared spectroscopy and density-functional-theory calculation. Chem Phys Lett 370 460 68... 

Pacansky, J. and Bargon, J., Low temperature photochemical studies on acetyl benzoyl peroxide. The observation of methyl and phenyl radicals by matrix isolation infrared spectroscopy, /. Am. Chem. Soc., 97, 6896,1975. 

Kudoh, S., Takayanagi, M., and Nakata, M., Dewar pyridine studied by matrix isolation infrared spectroscopy and DFT calculation,/. Photochem. Photobiol. A Chem., 123, 25, 1999. 

Values for Ihe gas phase are sirtrilar bin there is a notice-able conlfaction in the cubic crystalline form (in parenlhe-ses). N - N 175 pm (164 pm). N - O 118 pm (117 pm), angle O-N-0 133.7 (126°). In addition, infrared studies on N2O4 isolated in a low-temperature matrix at liquid nitrogen temperature ( - 1%°C) have been interpreted in terms of a twisted... 

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