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.
M.S.Snow, B.J.Howard, L.Evangelisti, W.Caminati (2011). From Transient to Induced Permanent Chirality in 2-Propanol upon Dimerization: A Rotational Study. JOURNAL OF PHYSICAL CHEMISTRY. A, MOLECULES, SPECTROSCOPY, KINETICS, ENVIRONMENT, & GENERAL THEORY, 115, 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.
