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The axial and equatorial hydrogen bonds in the tetrahydropyran∙∙∙HF complex
S Antolínez1, J C López, J L Alonso
1Departamento de Química Física, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain.
Abstract:
Characterized by microwave spectroscopy after their formation in a supersonic jet, the axial and equatorial hydrogen bond conformers of the title complex were studied. The axial form--shown in the picture--has been found to be the most stable one. The experimental data are consistent with a C(s) symmetry for both conformers, in which linear hydrogen bonds lying in the symmetry plane bisect the C-O-C angle. The structure of tetrahydropyran subunit in the axial form was also determined and no significant structural distortion occurs upon complexation.
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