
%0 Journal Article
%A Rai, SN 
%A Thakur, SN 
%T Kinematical evaluation of force constants: application to trihalides of phosphorus and arsenic
%J Australian Journal of Chemistry
%D 1970/05/01
%V 23
%N 5
%P 881-886
%K 
%R https://doi.org/10.1071/CH9700881
%U https://www.publish.csiro.au/paper/CH9700881 
%X The F-matrix elements for the two-dimensional symmetry species are dependent on one arbitrary parameter in addition to the vibrational frequencies. This parameter has been chosen as an angle ø (0 &#8804; ø &#8804; 2&#960;) and the F-matrix elements for the A1- and the E-species of trihalides of phosphorus and arsenic have been studied as functions of ø. It is found that the best values of the force constants obtained from Coriolis 1; constants can be correlated with those values of the angle &#958; for which the bending force constant exhibits a minimum. 
