Abstract
A BAND system consisting of six band-heads has been found in the region λλ2900–2200. It is different in nature from the two systems previously known for the molecule. The bands are double-headed, indicating that their emitter consists of an odd number of electrons, and thus they have been attributed to the ionised copper hydride (CuH+) molecule. The band structure has been analysed. It consists of nine branches, namely, six main branches and three satellites, and the branch lines obey the K-selection rule. From the intensity relations of the branch lines for low quantum values, it is found that Q>R>P. Thus the system has been assigned a 2II→2∑ transition. The 2II level is inverted. From the vibrational quantum analysis, ω0′ = 1874 cm.-1. This is in good agreement with the value as calculated from the relation given by Kratzer, namely, ω02= - 4B03/D0. The values of B0′ and D0′ are 3.30 cm.-1 and -4.16 × 10-5 respectively.
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MAHANTI, P. A New Band System of Copper Hydride. Nature 127, 557 (1931). https://doi.org/10.1038/127557c0
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DOI: https://doi.org/10.1038/127557c0
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