Anharmonic effects on the OH stretching vibrations of the Na₅H₃(SeO₄)₄x2H₂O crystal

• Autorzy: Ratajczak H. , Barnes A. J. , Baran J. , Marchewka M. K. , Yaremko A. M.
• Języki publikacji: EN

Abstrakty

EN

Polarized infrared spectra of pentasodium trihydrogen tetraselenate dihy-drate, Na(5)H(3)(SeO4)(4)2H(2)O, are analysed using a model which takes account of the Fermi resonance interactions between the OH stretching vibrations and various combination tones. It is demonstrated that the short, centrosymmetric, hydrogen bond of the hydro-gendisefenate anion generates an intense broad absorption whose spectral features can be described taking into consideration strong interaction between the va (OHO) stretching vibration and lattice phonons, while the longer hydrogen bond linking hydrogenselenate ions to the hydrogendiselenate anion gives a typical ABC band structure.

Słowa kluczowe

EN

infrared spectra; hydrogen bond; anharmonic effects; dihydrate

PL

widmo w podczerwieni; wiązanie wodorowe; efekt anharmoniczny; dwuwodzian

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Chemistry
• Rocznik: 2001
• Tom: Vol. 49, No. 1
• Strony: 1--8
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Ratajczak H.

autor

Barnes A. J.

autor

Baran J.

autor

Marchewka M. K.

autor

Yaremko A. M.

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, PO BOX 937, 50-950 Wrocław 2, Poland (Instytut Niskich Temperatur i Badań Strukturalnych PAN)