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 – quantitatively defined.
From Transient to Induced Permanent Chirality in 2-Propanol upon Dimerization: A Rotational Study / M.S.Snow; B.J.Howard; L.Evangelisti; W.Caminati. - In: JOURNAL OF PHYSICAL CHEMISTRY. A, MOLECULES, SPECTROSCOPY, KINETICS, ENVIRONMENT, & GENERAL THEORY. - ISSN 1089-5639. - STAMPA. - 115:(2011), pp. 47-51. [10.1021/jp1107944]
From Transient to Induced Permanent Chirality in 2-Propanol upon Dimerization: A Rotational Study
EVANGELISTI, LUCA;CAMINATI, WALTHER
2011
Abstract
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 – quantitatively defined.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
