A NEW BOUND $^{2}\Sigma^{+}$ STATE OF THE BeH MOLECULE
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Date
1980
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Ohio State University
Abstract
A study of the emission spectrum of the beryllium monohydride molecule obtained from a beryllium are in hydrogen or deuterium and a carefull reinvestigation of the perturbations observed in the $A^{2}\pi - X^{2}\Sigma^{+}$ transition of this molecule at 5000 {\AA} (1) have allowed to conclude to the existence of a large internuclear bound $^{2}\Sigma^{+}$ state of this molecule. This state thought previously (2) to be repulsive was later calculated to be bound (3). Vibrational and rotational constants are derived for the new state and information on the high-lying vibrational levels of the ground state is obtained.
Description
(1) R. HORNE and R. COLIN, Bull. Soc. Chim. Belg., 81, 83 (1972). (2) R. COLIN and D. DE GREEF, Can. J. Phys., 53, 2142 (1975). (3) H. LEFEBVRE-BRION and R. COLIN J. Molec. Spectr., 65, 33 (1978).
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