TY - JOUR A1 - Cuong, Ton Quoc A1 - Bolte, Michael T1 - 2,6-Bis(2-methyl-1,3-diazinan-2-yl)-pyridine T2 - Acta crystallographica / Section E, Structure reports online N2 - The title compound, C15H25N5, is an aminalization product between 2,6-diacetyl­pyridine and 1,3-diamino­propane. It crystallizes with two independent mol­ecules in the asymmetric unit with different conformations. In the first mol­ecule, the methyl groups are cis oriented with respect to the pyridine ring [N—C—C—C torsion angles = 72.5 (1) and 80.3 (1)°], while they are trans oriented in the second mol­ecule [N—C—C—C torsion angles = 82.6 (1) and -90.8 (1)°]. Each of the two mol­ecules forms centrosymmetric dimers held together by N—H[cdots, three dots, centered]N hydrogen bonds, thus forming R 2 2(16) rings. The two dimers are inter­linked by additional N—H[cdots, three dots, centered]N bonds into R 4 4(14) rings, building chains along the a axis. These patterns influence the orientation (either equatorial or axial) of the N—H bonds. Y1 - 2011 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/21880 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-108168 N1 - This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. VL - 67 IS - o41 ER -