4-Hydroxypyridinium hydrogen sulfate
نویسندگان
چکیده
The crystal structure of the title salt, C(5)H(6)NO(+)·HSO(4) (-), consists of planar(r.m.s. deviation = 0.001 Å) 4-hydroxy-pyridinium cations and hydrogen sulfate anions which are hydrogen bonded into a layer motif. In the anion, the S-O bond [1.551 (2) Å] involving the O atom bearing the acid H atom is longer than the other three S-O bonds, which range from 1.437 (1) to 1.454 (1) Å.
منابع مشابه
Tris(4-hydroxypyridinium) hydrogen sulfate–sulfate monohydrate
In the crystal structure of the title salt, 3C(5)H(6)NO(+)·HSO(4) (-)·SO(4) (2-)·H(2)O, the hydrogen sulfate ion is linked to the sulfate ion by an O-H⋯O hydrogen bond. The hydrogen sulfate-sulfate anion is a hydrogen-bond acceptor for the three independent cations and the uncoordinated water mol-ecule, the hydrogen-bonding inter-actions giving rise to a three-dimensional hydrogen-bonded networ...
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In the crystal structure of the title salt, 2C(5)H(6)NO(+)·SO(4) (2-)·H(2)O, one planar (r.m.s. deviation = 0.01 Å) cation is stacked approximately over the other [dihedral angle between planes = 8.6 (1)°]. The pyridinium and hydr-oxy H atoms are hydrogen-bond donor atoms to the O atoms of the sulfate anion; the cations, anions and water mol-ecules are consolidated into a three-dimensional netw...
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In the title salt hydrate, C(5)H(6)NO(+)·C(6)HCl(2)O(4) (-)·H(2)O, the three components are held together by O-H⋯O and N-H⋯O hydrogen bonds, as well as by C-H⋯O contacts, forming a double-tape structure along the c axis. Within each tape, the pyridinium ring and the chloranilate ring are almost coplanar, forming a dihedral angle of 2.35 (7)°.
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The crystal structure of the title compound, 2C(5)H(6)NO(2) (+)·C(4)H(2)O(4) (2-), consists of 3-hydroxy-pyridinium cations and fumarate dianions. The dianion is located on an inversion center and the cation is linked to it by O-H⋯O and N-H⋯O hydrogen bonds. The cation is twisted with respect to the anion by 24.83 (5)°.
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