High resolution FTTR spectrum of the nu(1) band of DCOOD

Accurate spectral information on formic acid has wide application to radioa stronomy since it was the first organic acid found in interstellar space. I n this work, the infrared absorption spectrum of the v(1) band of deuterate d formic acid (DCOOD) has been measured on a Bomem DA3.002 Fourier transfor m spectrometer in the wavenumber region 2560-2690 cm(-1) with a resolution of 0.004 cm(-1). A total of 292 infrared transitions have been assigned in this hybrid type A and B band centred at 2631.8736 +/- 0.0004 cm(-1). The a ssigned transitions have been fitted to give a set of eight rovibrational c onstants for the v(1) = 1 state with a standard deviation of 0.00078 cm(-1) . (C) 2000 Elsevier Science B.V. All rights reserved.