2-Carboxypyridinium maleate
نویسندگان
چکیده
In the title mol-ecular salt, C(6)H(6)NO(2) (+) (.)C(4)H(3)O(4) (-), the 2-carb-oxy-pyridinium cation is essentially planar with a maximum deviation of 0.003 (3) Å. In the crystal, adjacent cations and anions are linked by an extensive system of weak N-H⋯O, O-H⋯O and C-H⋯O inter-actions, forming a layer parallel to the ab plane.
منابع مشابه
2-Amino-3-carboxypyridinium nitrate
In the crystal structure of the title compound, C(6)H(7)N(2)O(2) (+)·NO(3) (-), the cations are linked via C-H⋯O hydrogen bonds, forming infinite chains running along the b axis. These chains are further linked through N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds to the nitrate anions, forming well-separated infinite planar layers parallel to (001).
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In the title compound, C(6)H(6)NO(2) (+)·Br(-), the hy-droxy and carbonyl groups make torsion angles of 164.8 (4) and -17.6 (6)°, respectively, with the pyridinium ring. Inter-molecular N-H⋯Br, O-H⋯Br and C-H⋯O hydrogen bonds contribute to the stability of the structure and link the mol-ecules into chains along the b axis.
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عنوان ژورنال:
دوره 68 شماره
صفحات -
تاریخ انتشار 2012