Polarized Raman and IR spectra of magnesium diammonium bis(hydrogen orthophosphate) tetrahydrate | Zendy

Jayakumar V. S. | Zendy; Rajagopal P. | Zendy; Aruldhas G. | Zendy

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Polarized Raman and IR spectra of magnesium diammonium bis(hydrogen orthophosphate) tetrahydrate

Author(s) -

Jayakumar V. S.,

Rajagopal P.,

Aruldhas G.

Publication year - 1991

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1250221009

Subject(s) - tetrahydrate , raman spectroscopy , chemistry , ion , ammonium , hydrogen bond , deuterium , crystallite , crystallography , metaphosphate , polarizability , crystal structure , infrared spectroscopy , hydrogen , crystal (programming language) , inorganic chemistry , phosphate , molecule , organic chemistry , physics , atomic physics , programming language , computer science , optics

The polarized Raman and IR spectra of Mg(NH 4 ) 2 (HPO 4 ) 2 ·4H 2 O and its partially deuterated polycrystalline sample were recorded and analysed. The presence of bands characteristic of HPO 2− 4 and DPO 2− 4 ions are interpreted in terms of the proton polarizabilities of the HPO 2− 4 and jDPO 2− 4 ions. The ammonium ion is free to rotate in the crystal and crystallographically distinct NH 4 + ions exist. Hydrogen bonding of different groups is also discussed.

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