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Molecular symmetries, vibrational spectroscopy

Buker JF, Sample JD (1976) Tunable Diode Laser Instruments, ISA Reprint. Pittsburg, pp 76-613 Bulkin BJ (1976) Vibrational spectroscopy of liquid crystals. In Brown GH (ed) Advances in liquid crystals, vol 2. Academic, New York, p 199 Bulkin BJ (1981) Vibrational spectra of liquid crystals. In Clark RJH, Hester RE (eds) Advances in infrared and Raman spectroscopy, vol 8. Heyden, London, p 151 Bunker PR (1979) Molecular Symmetry and Spectroscopy. Academic Press, New York Bunow MR, Levin IW (1977a) Biochim Biophys Acta 464 202 Burch DE, Gryvnak DA (1967) J Chem Phys 47 4930... [Pg.718]

Since the molecular symmetry is important in vibrational spectroscopy few explanations will be given shortly with regards to comments within the tables. For more details the reader is referred to basic literatures on the theory of molecular symmetry. Vibrations of functional groups of a polymer chain can be described by the so-called point groups. The point group theory means that during the vibration at least one point in the molecule remains unaffected. Furthermore, for molecular units with some symmetry, point group theory can be used to predict how many vibrational modes should appear in the IR and Raman spectra. As different molecular symmetries lead to different numbers of IR and Raman active bands this is a... [Pg.369]

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