Shapes and internal dynamics of the 1:1 adducts of ammonia with trans and gauche ethanol: a rotational study.
Two 1:1 adducts of ammonia with ethanol have been characterized by using pulsed-jet FT microwave spectroscopy. They are formed with two different (trans and gauche), stable conformers of ethanol. Several internal-dynamics effects are reflected in the features of the rotational spectra. The trans complex shows the tunneling effects owing to internal rotation of both ammonia and the methyl group. The rotational transitions of the gauche species exhibit a small splitting that is related to tunneling through the potential-energy barrier between the two equivalent minima.
Dipartimento di Chimica "G. Ciamician" dell'Università, Bologna, Italy.
Barbara M
BM
Giuliano
Laura B
LB
Favero
Assimo
A
Maris
Walther
W
Caminati
D000641:Ammonia / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry*; D006860:Hydrogen Bonding; D008958:Models, Molecular; D056004:Molecular Dynamics Simulation; D013057:Spectrum Analysis; D013237:Stereoisomerism
D000431:Ethanol; D000641:Ammonia