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4-Carbamoylpyridin-1-ium 2,2,2-trichloro-acetate.

ABSTRACT: In the asymmetric unit of the title salt, C(6)H(7)N(2)O(+)·C(2)Cl(3)O(2) (-), there are two crystallographic independent ion pairs. The amide groups of the 4-carbamoylpyridin-1-ium ions are slightly twisted out of the plane of the aromatic ring with C-C-C-N torsion angles of 8.8?(9)° and 4.6?(8)°. In the crystal, the 4-carbamoylpyridin-1-ium ion is N-H?O hydrogen bonded to the trichloro-acetate ion via the pyridinium unit and amide group. Layers parallel to the ac plane are formed due to the N-H?O hydrogen bonding of the adjacent amide groups of 4-carbamoylpyridin-1-ium ions. Weak C-H?O inter-actions also occur.

SUBMITTER: Perdih F 

PROVIDER: S-EPMC3435745 | biostudies-other | 2012 Sep

REPOSITORIES: biostudies-other

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4-Carbamoylpyridin-1-ium 2,2,2-trichloro-acetate.

Perdih Franc F  

Acta crystallographica. Section E, Structure reports online 20120823 Pt 9

In the asymmetric unit of the title salt, C(6)H(7)N(2)O(+)·C(2)Cl(3)O(2) (-), there are two crystallographic independent ion pairs. The amide groups of the 4-carbamoylpyridin-1-ium ions are slightly twisted out of the plane of the aromatic ring with C-C-C-N torsion angles of 8.8 (9)° and 4.6 (8)°. In the crystal, the 4-carbamoylpyridin-1-ium ion is N-H⋯O hydrogen bonded to the trichloro-acetate ion via the pyridinium unit and amide group. Layers parallel to the ac plane are formed due to the N-H  ...[more]