The Electronic State and Dipole Moment of Diazine Mono-N-oxide

Abstract

Abstract The dipole moments of pyrazine 1-oxide, 4-methylpyrimidine 1-oxide and pyridazine 1-oxide have been measured in benzene solutions and found to be 1.66, 3.72, and 5.21 D respectively. A comparison of these values with those obtained by the SMO calculation, in which the necessary parameters have been theoretically evaluated in detail by us in previous papers, shows that the agreement between the observed and calculated values is good.