In this work we present the vibrational spectrum of a hydrogen-bonded complex, nitric acid-water, in the region 6000-11000 cm (1) using Fourier-transform infrared spectroscopy. This study builds on previous observation of the nitric acid-water complex in the mid-infrared via a carbon tetrachloride matrix to investigate the vibrational overtone region of the complex at ambient conditions. Our experimental observations of nu(OH) = 1, 2 and 3 of the nitric acid-water complex provides a testing ground for the simple harmonically coupled anharmonic oscillator local-mode model treatment of OH-vibrational overtone spectra of hydrogen-bonded complexes. (c) 2009 Elsevier B.V. All rights reserved.