Tetra-methyl-ammonium hydrogen terephthalate.
Acta Crystallogr Sect E Struct Rep Online
; 68(Pt 10): o3014-5, 2012 Oct 01.
Article
en En
| MEDLINE
| ID: mdl-23125785
The asymmetric unit of the title salt, C(4)H(12)N(+)·C(8)H(5)O(4) (-), contains one half of a tetra-methyl-ammonium cation and one half of a hydrogen terephthalate monoanion. The N atom of the ammonium cation lies on a twofold rotation axis and the centre of mass of the terephthalate anion is on a centre of inversion. In the crystal, the centrosymmetric terephthalate ions are linked by a very short symmetric O-Hâ¯O hydrogen bond [Oâ¯O = 2.4610â
(19)â
Å] into a one-dimensional polymeric chain along [1-12]. The tetra-methyl-ammonium cations and terephthalate anions are then connected through a pair of bifurcated acceptor C-Hâ¯O hydrogen bonds, generating a three-dimensional supra-molecular network. The carboxyl-ate groups at both ends of the terephthalate anion are charge-shared with an equal probability of 0.5.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Acta Crystallogr Sect E Struct Rep Online
Año:
2012
Tipo del documento:
Article
País de afiliación:
Irán
Pais de publicación:
Estados Unidos