Abstract
Crystallographic properties of the title compounds are reported and inter- and intra-molecular interactions of the amino group are discussed and related to spectroscopic data. The geometry of the nitrogroups and of the 2-aminoheterocyclic moiety indicate that classical conjugation theory cannot explain the UV/vis spectra. The red shift observed on substituting H by a Me on the 2-amino group is interpreted in terms of internal charge-transfer.
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Forlani, L., Battaglia, L.P., Bonamartini Corradi, A. et al. Structural properties of some heteroaryl amines. Crystallographic studies on 2-N-(2,4,6-trinitrophenyl)-pyridineamine(I),-4-methylthiazoleamine(II), and-pyrimidineamine(III). Journal of Crystallographic and Spectroscopic Research 22, 705–712 (1992). https://doi.org/10.1007/BF01160990
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DOI: https://doi.org/10.1007/BF01160990