Isotope Labelling Studies of Some Aromatic N-Oxides - Part II. A Full Vibrational Assignment of the Infrared and Raman Spectra (4000-50 CM−1) of Pyrazine N-Oxide and its Fully Deuterated Analogue

Full infrared and Raman vibrational assignments of pyrazine N-oxide and its fully deuterated analogue have been made. Three changes are recommended to an earlier assignment of the -d0 compound. Coupling within the molecule is examined employing the νD/νH ratio and by comparisons with similar molecules.