Abstract
Influence of the intermolecular interactions in solid phase on the overlapped IR-spectroscopic pattern of ( R)-(−)-1-phenylglycinium hydrogen squarate monohydrate is studied experimentally by means of a complex approach, including IR-LD spectroscopy of oriented solid-samples as suspension in nematic liquid crystal, reducing difference procedure for polarized spectra interpretation, deconvolution and curve-fitting procedures. Raman ones completes the IR-spectroscopic data. The experimental results are supported with theoretical ones and the calculated frequencies obtained on UHF/6-311++G ∗∗ level of theory and basis and scaled with a factor of 0.8929 correlated well with experimental observed data, giving a standard deviation of 9 cm −1 for so-called non-characteristic bands.
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