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High-Resolution Infrared Diode Laser Spectroscopy of Ne–N2O, Kr–N2O, and Xe–N2O

✍ Scribed by Wouter A. Herrebout; Hai-Bo Qian; Hiromi Yamaguchi; Brian J. Howard

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
323 KB
Volume
189
Category
Article
ISSN
0022-2852

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✦ Synopsis

The rotationally resolved spectra of the van der Waals complexes Ne-N 2 O, Kr-N 2 O, and Xe-N 2 O have been investigated in the region of the n 3 N 2 O monomer vibrational band using a diode laser absorption spectrometer that is incorporated with a multipass cell and a pulsed jet. The spectra of these three complexes are completely analyzed using a normal asymmetric rotor Hamiltonian, and the effective molecular constants are accurately determined for both the ground and the excited vibrational states. These results show that, like Ar-N 2 O, the complexes have a T-shaped configuration in which the rare gas atom prefers to lie near to the oxygen side of N 2 O. The band origins of Rg-N 2 O (Rg Å Ne, Ar, Kr, and Xe) are observed to shift by 0.36125, 0.15038, 00.10131, and 00.49066 cm 01 from that of the monomer, respectively. These band origin shifts are well explained by a simple model for the intermolecular potential.

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