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Title: Infrared spectroscopic study of carbon clusters trapped in solid parahydrogen

Conference ·
OSTI ID:437277

Recently solid parahydrogen is shown to be a promising medium for matrix-isolation spectroscopy. Availing of several salient features of the new matrix, the authors are studying molecules of chemical interest such as free radicals. In the present work, the authors report infrared spectra of small carbon clusters trapped in solid parahydrogen. Carbon clusters were produced by laser vaporization of a carbon rod placed inside the optical cell. The second harmonic of a Q-switched Nd:YLF laser was used for ablation. The observed infrared spectrum showed the presence of small carbon clusters such as C{sub 3}, C{sub 5} and C{sub 9} in a parahydrogen crystal at 4.8K. A detailed analysis of the spectrum reveals that these clusters are not rotating freely but are strongly hindered by surrounding hydrogen molecules.

OSTI ID:
437277
Report Number(s):
CONF-9606118-; TRN: 96:005696-0073
Resource Relation:
Conference: 51. Ohio State University international symposium on molecular spectroscopy, Columbus, OH (United States), 10-14 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of Ohio State University 51st international symposium on molecular spectroscopy; PB: 272 p.
Country of Publication:
United States
Language:
English