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Neutron Inelastic Scattering Studies in Crystal Hydrates
Author(s) -
Thaper C. L.,
Sequeira A.,
Dasannacharya B. A.,
Iyengar P. K.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690340128
Subject(s) - inelastic neutron scattering , chemistry , deuterium , crystallite , crystallography , inelastic scattering , hydrogen bond , crystal (programming language) , neutron scattering , single crystal , scattering , atomic physics , molecule , physics , optics , programming language , organic chemistry , computer science
Neutron inelastic scattering studies on polycrystalline samples of K 2 C 2 O 4 · H 2 O, Ba(ClO 3 ) 2 · H 2 O, Li 2 SO 4 · H 2 O, CaSO 4 · 2H 2 O, CuCl 2 · 2H 2 O, and BeSO 4 · 4H 2 O have been performed at room temperature and 100°K with the aim to observe the librational frequencies in these hydrates. Deuterated salts were studied to confirm the librational modes. Within the experimental resolution, it is possible to observe two librational peaks in favourable cases. A definite assignment of these peaks could not be made even by comparison with other available data. Vibrational frequencies in K 2 C 2 O 4 · H 2 O, Ba(ClO 3 ) 2 · H 2 O, and BeSO 4 · 4H 2 O have been obtained from crystal energy consideration. From their comparison with the observed frequencies it may be seen that the nearest‐neighbour hydrogen bond is the dominant interaction for the calculations of the librational frequencies in these salts.