+++2 с SD спасибо

[Rupreht]

1. Accurate force constants of trans-1,3-butadiene: a direct approach
Journal of Molecular Structure, Volume 311, 20 July 1994, Pages 87-96
A. Vijay, D.N. Sathyanarayana

Код: Выделить всё

http://dx.doi.org/10.1016/S0166-1280(09)80045-6

2. Structure and vibrational assignment of gouche-1,3-butadiene
Journal of Molecular Structure, Volume 129, Issues 1-2, June 1985, Pages 57-67
Ch. W. Bock, Yu. N. Panchenko, S. V. Krasnoshchiokov, V. I. Pupyshev

Код: Выделить всё

http://dx.doi.org/10.1016/0022-2860(85)80192-7

Спасибо !

[Vittorio]

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[Vittorio]

2