G. Pfisterguillouzo et al., STUDY OF 1-HYDROXYBENZOTRIAZOLE BENZOTRIAZOLE N-OXIDE TAUTOMERISM IN THE GAS-PHASE BY PHOTOELECTRON-SPECTROSCOPY/, SPECT ACT A, 51(11), 1995, pp. 1801-1807
A photoelectron experimental study of the equilibrium benzotriazole N-
oxide/1-hydroxybenzotriazole has demonstrated that only the second com
pound is present in the gas phase. Moreover, because crystals of each
tautomer were used, these experiments prove that tautomeric equilibria
can be attained in the gas phase.