TY - JOUR A1 - Rivera, Augusto A1 - Osorio, Héctor Jairo A1 - Uribe, Juan Manuel A1 - Ríos-Motta, Jaime A1 - Bolte, Michael T1 - Crystal structure of the 1,3,6,8-tetra­aza­tri­cyclo[4.3.1.13,8]undecane (TATU)–4-nitro­phenol (1/2) adduct : the role of anomeric effect in the formation of a second hydrogen-bond inter­action T2 - Acta crystallographica. Section E, Crystallographic communications, 71.2015, S. 1356-1360 N2 - In the title ternary co-crystalline adduct, C7H14N4·2C6H5NO3, mol­ecules are linked by two inter­molecular O—H⋯N hydrogen bonds, forming a tricomponent aggregates in the asymmetric unit. The hydrogen-bond formation to one of the N atoms is enough to induce structural stereoelectronic effects in the normal donor→acceptor direction. In the title adduct, the two independent nitro­phenol mol­ecules are essentially planar, with maximum deviations of 0.0157 (13) and 0.0039 (13) Å. The dihedral angles between the planes of the nitro group and the attached benzene rings are 4.04 (17) and 5.79 (17)°. In the crystal, aggregates are connected by C—H⋯O hydrogen bonds, forming a supra­molecular dimer enclosing an R66(32) ring motif. Additional C—H⋯O inter­molecular hydrogen-bonding inter­actions form a second supra­molecular inversion dimer with an R22(10) motif. These units are linked via C—H⋯O and C—H⋯N hydrogen bonds, forming a three-dimensional network. KW - crystal structure KW - cocrystalline adducts KW - hydrogen bonding Y1 - 2015 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/39235 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-392359 SN - 2056-9890 N1 - This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence http://creativecommons.org/licenses/by/2.0/uk/legalcode , which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. VL - 71 SP - 1356 EP - 1360 PB - International Union of Crystallography CY - Chester ER -