Raman spectrum of ammonium di-hydrogen phosphate

Narayanan, P. S. (1948) Raman spectrum of ammonium di-hydrogen phosphate Proceedings of the Indian Academy of Sciences, Section A, 28 (5). pp. 469-474. ISSN 0370-0089

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Official URL: http://www.ias.ac.in/j_archive/proca/28/5/469-474/...

Related URL: http://dx.doi.org/10.1007/BF03170812


Using the λ2536·5 mercury resonance radiation as exciter, the Raman spectrum of ammonium di-hydrogen phosphate has been investigated. The spectrum consists of 20 lines of which (1) 4 are lattice lines, (2) 8 are due to internal oscillations of the PO4 group and (3) 8 due to NH4 groups. The continuous distribution of intensity in the lattice spectrum indicates the possibility of the existence of hindered rotation of the NH4 and PO4 groups. The splitting up of some of the degenerate lines of both PO4 and NH4 groups might be due to the strong influence of the hydrogen bonds.

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