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Updated: Feb 7, 2026

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Published on: May 11, 2019
Crystal structure of 2-[2-(pyridin-3-yl)diazen-1-yl]aniline
Morten K Peters1, Christian Näther2, Rainer Herges1
1Otto-Diels-Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Otto-Hahn-Platz 4, D-24098 Kiel, Germany.
Abstract:
The crystal structure of the title compound, C11H10N4, comprises mol-ecules in a trans conformation for which all the atoms are located in general positions. The six-membered rings are coplanar and this arrangement might be stabilized by intra-molecular N-H⋯N hydrogen bonding. In the crystal, the mol-ecules are linked into helical chains parallel to the b axis via N-H⋯N hydrogen bonding. The mol-ecular packing shows a herringbone-like pattern along the a axis. Comparison of the X-ray powder diffraction with that calculated from single crystal data proves that a pure crystalline phase was obtained and UV-Vis measurements reveal that only the trans isomer is present.
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