Infrared spectra of matrix isolated BH3NH3, BD3ND3, and BH3ND3 |
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Authors: | J. Smith K.S. Seshadri David White |
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Affiliation: | Department of Chemistry, University of Pennsylvania, Phildelphia, Pennsylvania 19104 USA |
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Abstract: | The infrared spectra of ammonia-borane, BH3NH3, and two of its deuterated isotropic species, BD3ND3 and BH3ND3, isolated in argon matrix at liquid hydrogen temperature have been measured. Well resolved bands for these three isotopic species have been observed for all the fundamentals. A complete frequency assignment based on C3v molecular symmetry has been made. A set of force constants have been calculated from the data for the two isotopes BH3NH3 and BD3ND3 using a valence force field. The agreement between experiment and frequencies calculated from these force constants for the mixed isotopic species, BH3ND3, substantiates the present assignment. |
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