Screen LibraryAtlas of vibrational spectra of liquid crystals /
This atlas is the first one in the field of vibrational spectroscopy of polyatomic molecules. It is divided into two paragraphs. The first deals with the theory of vibrational spectroscopy in a concise form and considers the most important spectroscopical parameters frequencies, bandshape and intens...
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| Corporate Authors: | |
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| Published: |
World Scientific Pub. Co.,
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| Publisher Address: | Singapore ; Teaneck, N.J. : |
| Publication Dates: | 1988. |
| Literature type: | eBook |
| Language: | English |
| Subjects: | |
| Online Access: |
http://www.worldscientific.com/worldscibooks/10.1142/0616#t=toc |
| Summary: |
This atlas is the first one in the field of vibrational spectroscopy of polyatomic molecules. It is divided into two paragraphs. The first deals with the theory of vibrational spectroscopy in a concise form and considers the most important spectroscopical parameters frequencies, bandshape and intensities. The second paragraph is dedicated to the infrared (2000 400 cm-1), far infrared (400 40 cm-1) and Raman (2000 10 cm-1) spectra of about hundred different mesomorphic materials with various molecular structure. The polarized IR spectra of the most important liquid crystals is also included. In the second paragraph the assignment of the IR bands to the corresponding intramolecular vibrations is also reported. Almost all spectra is registrated and analysed for the first time. The major important features are: 1. Registration and analysis (for the first time) of vibrational spectra of polyatomic molecules with mesomorphic phases; 2. Registration (for the first time) of vibrational spectra of polyatomic molecules with mesomorphic phase in polarized IR light. Polarized vibrational spectra are very important for clarification of the molecular structure; 3. Assignment (for the first time) of the IR bands of the most important liquid crystalline materials to the corresponding vibrations. |
| Carrier Form: | 1 online resource (319pages) : illustrations |
| Bibliography: | Includes bibliographical references. |
| ISBN: | 9789814434140 |
| CLC: | O561.3 |
| Contents: | ch. I. Structure and properties of liquid crystals. I.1. Classification of liquid crystals. I.2. Classification of thermotropic liquid crystals. I.3. Molecular structure of thermotropic liquid crystals. I.4. The degree of order : orientational order parameters -- ch. II. Vibrational spectra. II.1. Introduction to the theory of vibrational spectra. II.2. Molecular symmetry. II.3. Intensity of vibrational spectra of polyatomic molecules -- Far infrared spectra -- Near infrared spectra -- Raman spectra -- List of compounds. |