A P Kumar et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 53A(12), 2041-2048 (1998-01-23)
A zero-order normal coordinate analysis of both the in-plane and out-of-plane vibrations was made for 2-chloro, 6-fluorobenzonitrile, s-trichlorobenzonitrile, p- and m-methoxybenzonitriles and m-nitrobenzonitrile, transferring the force constants from our earlier work. The observed and calculated frequencies agree with an average