Reversible phase transition in Zn2(O,O-di(cyclohexyl)dithiophosphate)4, studied by Raman spectroscopy and compared with NMR results

It was recently shown by solid state 31P NMR spectroscopy that the number of phosphorous signals from the complex Zn2(O,O-di(cyclohexyl)DTP)4 varied reversibly with the temperature. According to the present study, Raman spectra of the same metal complex were also temperature dependent. Spectral features affected by the temperature changed reversibly upon raising and lowering the temperature. It was shown that conformational change of the hexyl rings and the POC entities occurred in the temperature range between 40 and 55°C.