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Infrared studies ono-,m- andp-cresol-urea (1:1) complexes

Authors
Journal
Journal of Molecular Structure
0022-2860
Publisher
Elsevier
Publication Date
Volume
219
Identifiers
DOI: 10.1016/0022-2860(90)80061-n

Abstract

Abstract Complex formation between urea and o-, m- and p-cresol in 1,2-dichloroethane solutions was investigated by i.r. spectroscopy. Analogical 1:1 urea-phenol complex was reevaluated. Those complexes are formed by CO⋯H hydrogen bonding. In solution the NH urea groups do not play any significant role. The i.r. temperature studies allowed us to determine the enthalpy and entropy of formation of 1:1 complex.

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