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Intermolecular stretching vibration of hydrogen bonds involving a sulfur atom |
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| Affiliation: | 1. CMUC, Department of Mathematics, University of Coimbra, Apartado 3008, EC Santa Cruz, Coimbra 3001-501, Portugal;2. Faculty of Science and Technology, Department of Mathematics, University of Macau, Av. Padre Tomás Pereira, Taipa, Macau, China;3. Faculty of Mathematics, Informatics and Mechanics, University of Warsaw, Banacha 2, Warsaw 02–097, Poland;4. Departamento de Matemática, Universidade da Beira Interior, Covilhã 6201-001, Portugal |
| Abstract: | The intermolecular stretching vibration of hydrogen bonded complexes between phenol derivatives and tetramethylthiourea or dimethylthioformamide is observed in the range 113 – 131 cm−1. The corresponding force constants kσ are computed using the Lippincott-Schroeder potential function and the matrix method of Wilson. The kσ values are higher than these previously reported for the complexes of the same phenols with aliphatic amides. These results are in qualitative agreement with the theoretical predictions. |
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