The infrared spectrum of the perdeuterated acetylene (C2D2) has been recorded from 900 cm1 to 5500 cm1 by Fourier transform spectroscopy (FTIR) at a resolution ranging between 0.004 cm1 (at 500 cm1) and 0.01 cm1 (at 5000 cm1). Sixty five bands involving the , , stretching fundamentals and the , stretching-stretching combination modes associated with the and bending vibrations have been observed and assigned. In total, more than 5000 transitions have been considered in the investigated spectral region. The transitions relative to each stretching mode, including its overtone, hot and combination bands involving bending modes, were analysed simultaneously. We obtained five sets of spectroscopic parameters. The Darling-Dennison interaction between and , which was demonstrated to be important in the analysis of the pure bending states, was also considered between the same levels associated with the various stretching states. The standard deviation for each global fit was smaller than 0.001 cm1.
Luciano Fusina, Gianfranco di Lonardo, Mattia Villa, Filippo Tamassia, Elisabetta Cané (2012). The stretching-bending bands of 12C2D2.
The stretching-bending bands of 12C2D2
FUSINA, LUCIANO;DI LONARDO, GIANFRANCO;VILLA, MATTIA;TAMASSIA, FILIPPO;CANE', ELISABETTA
2012
Abstract
The infrared spectrum of the perdeuterated acetylene (C2D2) has been recorded from 900 cm1 to 5500 cm1 by Fourier transform spectroscopy (FTIR) at a resolution ranging between 0.004 cm1 (at 500 cm1) and 0.01 cm1 (at 5000 cm1). Sixty five bands involving the , , stretching fundamentals and the , stretching-stretching combination modes associated with the and bending vibrations have been observed and assigned. In total, more than 5000 transitions have been considered in the investigated spectral region. The transitions relative to each stretching mode, including its overtone, hot and combination bands involving bending modes, were analysed simultaneously. We obtained five sets of spectroscopic parameters. The Darling-Dennison interaction between and , which was demonstrated to be important in the analysis of the pure bending states, was also considered between the same levels associated with the various stretching states. The standard deviation for each global fit was smaller than 0.001 cm1.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
