Herbich, Jerzy published the artcileIntramolecular electron transfer in 4-(dialkylamino)pyrimidines. Study in solutions and supersonic jet, Name: N,N-Dimethylpyrimidin-4-amine, the publication is Proceedings – Indian Academy of Sciences, Chemical Sciences (1992), 104(2), 117-31, database is CAplus.
The dual fluorescence (a and b) of 4-(dialkylamino)pyrimidines (4-DAAP) in solutions is explained in terms of the twisted intramol. charge transfer (TICT) state model. 4-DAAP form complexes with protic solvents: efficient radiationless depopulation is switched on by H-bonding (HB). The photoinduced electron transfer is modified by HB or by coordination to the metal ion. In nitriles, 2 emitting states of 4-(N,N-dimethylamino)pyrimidine (I) and 4-(N,N-diethylamino)pyrimidine (II) reach equilibrium In protic solvents, the fluorescences a and b are not kinetically coupled: the different ground state complexes are responsible for each band. Jet-cooled 4-DAAP show only primary excited fluorescence b. Microsolvation of pretwisted o-methylated compounds, by small polar mols., contrary to more planar I and II, gives rise to the long-wave (probably TICT) fluorescence.
Proceedings – Indian Academy of Sciences, Chemical Sciences published new progress about 31401-45-3. 31401-45-3 belongs to pyrimidines, auxiliary class Pyrimidine,Amine, name is N,N-Dimethylpyrimidin-4-amine, and the molecular formula is C6H9N3, Name: N,N-Dimethylpyrimidin-4-amine.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/Pyrimidine,
Pyrimidine – Wikipedia