1. Springer
Structural Chemistry Vol. 14, No. 5, p. 497-510 (2003)
A Computational Study of Chair–Twist Energy Differences and the Chair–Chair Conformational Interconversion in Tetrahydro-2H-thiopyran (Thiacyclohexane, Thiane)
F. Freeman, E. Derek
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http://dx.doi.org/10.1023/B:STUC.0000004494.20294.e1Journal of Molecular Structure: THEOCHEM Vol. 529, Is. 1-3, p. 225-239 (2000)
An ab initio molecular orbital theory and density functional theory study of the conformational free energies of methyltetrahydro-2H-thiopyrans
F. Freeman, W.J. Hehre
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http://dx.doi.org/10.1016/S0166-1280(00)00550-9