Dimerization of 9, 10-Diazaphenanthrene

Abstract
The fluorescence and fluorescence excitation spectra of the dimer of 9, 10‐diazaphenanthrene are given with the relative degrees of polarization of the bands. The stabilization enthalpy of the dimer is 3.6 kcal mole−1, and the association constant K = 9.1 × 10−2exp(1800 / T) for 100°K ≤ T ≤ 130°K .