An infrared spectroscopic study of the phase transitions of crystalline aromatic donor-acceptor complexes involving a pseudoplastic state

Ramachandra Swamy, H. ; Ganguly, Somnath ; Rao, C. N. R. (1983) An infrared spectroscopic study of the phase transitions of crystalline aromatic donor-acceptor complexes involving a pseudoplastic state Spectrochimica Acta Part A: Molecular Spectroscopy, 39 (1). pp. 23-28. ISSN 0584-8539

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/058485...

Related URL: http://dx.doi.org/10.1016/0584-8539(83)80049-X

Abstract

Variable temperature i.r. spectroscopic studies of weak π-donor-π-acceptor complexes in the crystalline state indicate that the complexes undergo order-disorder transitions, the disorder being caused by molecular motion. Thermodynamic data on the phase transitions along with the spectral data suggest that the high-temperature crystalline forms of the complexes are likely to be pseudoplastic.

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