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Crystal structure of allyl­ammonium hydrogen succinate at 100 K

The asymmetric unit of the title compound, C(2)H(8)N(+)·C(4)H(5)O(4) (−), consists of two allyl­ammonium cations and two hydrogen succinate anions (Z′ = 2). One of the cations has a near-perfect syn-periplanar (cis) conformation with an N—C—C—C torsion angle of 0.4 (3)°, while the other is character...

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Detalles Bibliográficos
Autores principales: Dziuk, Błażej, Zarychta, Bartosz, Ejsmont, Krzysztof
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4186065/
https://www.ncbi.nlm.nih.gov/pubmed/25309251
http://dx.doi.org/10.1107/S1600536814015633
Descripción
Sumario:The asymmetric unit of the title compound, C(2)H(8)N(+)·C(4)H(5)O(4) (−), consists of two allyl­ammonium cations and two hydrogen succinate anions (Z′ = 2). One of the cations has a near-perfect syn-periplanar (cis) conformation with an N—C—C—C torsion angle of 0.4 (3)°, while the other is characterized by a gauche conformation and a torsion angle of 102.5 (3)°. Regarding the anions, three out of four carboxilic groups are twisted with respect to the central C–CH(2)–CH(2)–C group [dihedral angles = 24.4 (2), 31.2 (2) and 40.4 (2)°], the remaining one being instead almost coplanar, with a dihedral angle of 4.0 (2)°. In the crystal, there are two very short, near linear O—H⋯O hydrogen bonds between anions, with the H atoms shifted notably from the donor O towards the O⋯O midpoint. These O—H⋯O hydrogen bonds form helical chains along the [011] which are further linked to each other through N—H⋯O hydrogen bonds (involving all the available NH groups), forming layers lying parallel to (100).