Abstract
The temperature dependence of absorption in liquid Br2 and Br2:I2 was studied in the region of intermolecular and intramolecular vibrations of Br2. The induced dipole moment was found to be due to the molecular quadrupole field. Liquid I2 shows far-infrared absorption similar to Br2, and as an impurity in Br2 it enhances the absorption without changing the spectral distribution. Dipole correlation functions of Br2 were computed from the absorption band shape. Because the dipole moment is induced and not intrinsic, they show effects of translational modes, which exist for about 5 · 10−13 sec.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
The author wishes to thank Professor Dr. L.Genzel for valuable suggestions and discussions. The financial support of the Deutsche Forschungsgemeinschaft concerning the grating and the Fourier spectrometer is gratefully acknowledged. Numerical calculations of the correlation functions were made possible by the Rechenzentrum Freiburg.
Rights and permissions
About this article
Cite this article
Wagner, V. Infrared absorbtion of liquid Br2, I2, and Br2:I2 . Z. Physik 224, 353–363 (1969). https://doi.org/10.1007/BF01393062
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01393062