Published in
International Union of Crystallography, IUCrData, 12(5), 2020
DOI: 10.1107/s2414314620015850
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5,12-Diselena-3,4,13,14-tetraazatricyclo[9.3.0.02,6]tetradeca-3,13-diene
Journal article published in 2020 by
Heiner Detert 
,
Dieter Schollmeyer
,
Dieter Schollmeyer
This paper is made freely available by the publisher.
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Abstract
The title compound, C8H8N4Se2, crystallizes in a non-symmetrical conformation with a dihedral angle between the heterocycles of 45.0 (3)° and a nearly strain-free tetramethylene tether. The crystal studied was non-merohedrally twinned with a fractional contribution of 0.342 (3) for the minor twin component.