ISOTOPIC SUBSTITUTION RULES OF X-H STRETCHING VIBRATIONAL OVERTONE

Ⅰ. INTRODUCTIONIsotopic frequency shifts of vibrational frequencies of polyatomic molecules bring much benefit to the determination of force field constants. There are a variety of isotopic substitution rules for molecular vibrational fundamental frequencies, all of which are based on the GF matrix...

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Veröffentlicht in:中国科学通报:英文版 1992 (18), p.1537-1540
1. Verfasser: 王一飞 梁映秋 唐敖庆
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Sprache:eng
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Zusammenfassung:Ⅰ. INTRODUCTIONIsotopic frequency shifts of vibrational frequencies of polyatomic molecules bring much benefit to the determination of force field constants. There are a variety of isotopic substitution rules for molecular vibrational fundamental frequencies, all of which are based on the GF matrix method, that is, with small vibrational amplitude approximation. For X-H(X=C, N, O, S, etc.) stretching vibrations with large anharmonicity, we discover at least two
ISSN:2095-9273