Infrared Spectrum of Lithium Fluoride Monomer by Matrix Isolation
| Autor: | M. J. Linevsky |
|---|---|
| Rok vydání: | 1961 |
| Předmět: |
Argon
Infrared Krypton Analytical chemistry Matrix isolation General Physics and Astronomy Lithium fluoride chemistry.chemical_element chemistry.chemical_compound Dipole Xenon chemistry Molecular vibration Physics::Atomic and Molecular Clusters Physics::Atomic Physics Physical and Theoretical Chemistry |
| Zdroj: | The Journal of Chemical Physics. 34:587-590 |
| ISSN: | 1089-7690 0021-9606 |
| Popis: | A method has been developed which can be used to observe the infrared spectrum of high temperature vapors. It combines the techniques of matrix isolation with that of Knudsen effusion. The infrared spectrum of matrix isolated lithium fluoride has been observed in argon, krypton, xenon, and nitrogen matrices. The observed frequencies in the various matrix materials are shifted approximately 7% to 14% from the measured gas fundamental at 900 cm−1. These shifts can be explained by the interactions of the trapped molecule with its surrounding neighbors, based on a model which estimates the change in magnitude of the electrostatic, inductive, and dispersive interactions during the course of a molecular vibration. These effects are particularly large in lithium fluoride due to its sizable dipole moment. |
| Databáze: | OpenAIRE |
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