
%0 Journal Article
%A Cugley, JA 
%A Liberts, S 
%A Pullin, ADE 
%T The infrared matrix isolation spectra of ND<sub>3</sub> and NH<sub>3</sub> in an argon matrix in the v<sub>2</sub> bending region
%J Australian Journal of Chemistry
%D 1978/02/01
%V 31
%N 2
%P 247-253
%K 
%R https://doi.org/10.1071/CH9780247
%U https://www.publish.csiro.au/paper/CH9780247 
%X The spectra of NH3 and ND3 in an argon matrix have been obtained in the v2 (bending fundamental) region. The v2 region of ND3 has been interpreted in terms of a gas-phase model, with slightly altered rotational constants. Thus for the matrix an effective value of (B'+B') = 9.85 is required compared with 10.25 cm-1 for the gas phase. This represents a smaller fractional change than for NH3. The inversion splitting of ND3 in the argon matrix has been clearly resolved and a value of 2.0±0.1 cm-1 deduced. However, there are extra lines in the spectrum of ND3 which we cannot assign on the basis of a gas-phase model. For NH3 some vib-rotor 'lines' have been shown to be composite, in particular Q(11+) and Q(11-) are close triplets. 
