Computer deconvolution applied to the parallel band, ν9 + ν10, of hexadeuteroethane

Computer deconvolution of spectra is discussed, and a close comparison made of deconvoluted spectra with those measured at higher resolution. It is shown that spectra at a resolution of ～0.012 cm^?1 can be obtained by the use of a relatively small grating spectrometer.The parallel band, ν₉ + ν₁₀, of C₂D₆ is examined at a resolution of 0.012 cm^?1 but no K-structure is observed, indicating that (A′?B′)?(A″?B″) is less than 1 × 10^?5 cm^?1. Rotational constants are given for the main band and two hot bands.