From Transient to Induced Permanent Chirality in 2-Propanol upon Dimerization: A Rotational Study

Five different hydrogen-bonded conformers of the dimer of 2-propanol have been characterized by Fourier transform microwave spectroscopy. In all observed species, the proton donor moiety adopts a gauche conformation. While in the gauche monomer a transient chirality takes place, all dimers are class...

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Veröffentlicht in:	The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2011-01, Vol.115 (1), p.47-51
Hauptverfasser:	Snow, Mark S, Howard, Brian J, Evangelisti, Luca, Caminati, Walther
Format:	Artikel
Sprache:	eng
Schlagworte:	A: Kinetics, Spectroscopy
Online-Zugang:	Volltext
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Zusammenfassung:	Five different hydrogen-bonded conformers of the dimer of 2-propanol have been characterized by Fourier transform microwave spectroscopy. In all observed species, the proton donor moiety adopts a gauche conformation. While in the gauche monomer a transient chirality takes place, all dimers are classical chiral systems. The Ubbelohde effect has been observed upon OH → OD isotopic substitution and its structural effectsa 5 mÅ reduction of the O---O distancehave been quantitatively defined.
ISSN:	1089-5639 1520-5215
DOI:	10.1021/jp1107944