New insights into the nature of the metastable structures in supercooled liquid 2-biphenylmethanol

The experimental work to be presented and analyzed here focuses on the investigation of the molecular hydrogen-bonded compound 2-biphenylmethanol in a supercooled liquid state using FT-IR spectroscopy measurements. In the IR spectra, some attributes of the beginning of a new crystalline phase formation, as the temperature is raised from the glass transition to the room temperature has been observed. At the room temperature a continuous transformation of the IR spectra, which is intimately related to the crystallization, extends over 60 min. The IR spectrum of the so produced crystalline phase has been found to be quite different from that of the stable phase.