Abstract
WHILE the main band-systems of the molecules O2, S2, Se2 and Te2 of the sixth periodic group have been the subject of numerous publications, there is little known about the systems of these molecules lying in the far ultra-violet. In all cases such systems have been found in absorption, but they have been analysed only partially for their complex structure. The absorption bands of Te2 and Se2 between 2500 and 1950 A. and 1950 and 1750 A. respectively have been photographed by Choong Shin-Piaw1. His analysis is incomplete and violates the empirical rule of Mecke–Birge. Choong Shin-Piaw believed all the molecules Te2, Se2 and S2 to show the same peculiarity, and referred to the results published by Wieland, Wehrli and Miescher2 on S2. Yet these authors emphasized the provisional character of their interpretation.
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References
Choong Shin-Piaw, Thèse, Paris (1937).
Wieland, K., Wehrli, M., and Miescher, E., Helv. Phys. Ada, 7, 843 (1934).
Olsson, E., Thesis, Stockholm (1938).
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MAEDER, R., MIESCHER, E. Absorption Band Spectrum of S2 in the Schumann Region. Nature 161, 393 (1948). https://doi.org/10.1038/161393a0
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DOI: https://doi.org/10.1038/161393a0
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