High-resolution study of the nu(1)+nu(2) and nu(2)+nu(3) strongly interacting bands of D2Se

摘要

A high-resolution Fourier transform spectrum of the (D2Se)-Se-M species (M = 82, 80, 78, 77, and 76) in the region 2300-2500 cm(-1) was recorded for the first time and assigned. On the basis of these experimental data, rotation-vibration energies of the (110) and (011) vibrational states were fitted, and band centers, and rotational, centrifugal distortion, and resonance interaction parameters were determined for the main (D2Se)-Se-80 species. The obtained set of 32 fitted parameters reproduces the 647 rotation-vibration energies with a rms deviation of 0.00024 cm(-1). The v(1) + v(2) and v(2) + v(3) bands of the other four isotopic species are analyzed as well. (C) 2004 Elsevier Inc. All rights reserved.