4-Cyano-1-methylpyridinium nitrate
نویسندگان
چکیده
The title mol-ecular salt, C7H7N2 (+)·NO3 (-), displays an inter-penetrating sheet structure parallel to a with each sheet containing nearly coplanar cations and anions, each ion being bis-ected by a crystallographic mirror plane. C-H⋯O hydrogen bonds involving both ring and methyl H atoms in addition to cation-cation C-H⋯N hydrogen bonds (ring H to cyano N) serve to link the sheets together. In each set of parallel layers, the cations and anions stack with short distances of 3.094 (2) (between aligned nitrate N and pyridine N atoms) and 3.057 (2) Å (between a nitrate O atom and the ring centroid). This motif is strikingly similar to the one that features in the isomeric salt 2-cyano-1-methyl-pyridinium nitrate.
منابع مشابه
Bis(4-cyano-1-methylpyridinium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S,S′)cuprate(II)
The title ion-pair compound, (C(7)H(7)N(2))(2)[Cu(C(4)N(2)S(2))(2)], was obtained by the direct reaction of CuCl(2)·2H(2)O, disodium maleonitrile-dithiol-ate (Na(2)mnt) and 4-cyano-1-methyl-pyridinium iodide. The anion and one pyridinium cation lie entirely on a mirror plane, whereas for the other cation, a crystallographic mirror plane runs through the N and para-C atoms of the pyridine ring, ...
متن کامل2-Cyano-1-methylpyridinium nitrate
In the title compound, C(7)H(7)N(2) (+)·NO(3) (-), all atoms except the methyl H atoms lie on a crystallographic mirror plane. The inter-layer distance, including that between aligned N atoms from alternating cations and anions in adjacent layers, is exceptionally short at 3.055 (1) Å. Two-dimensional C-H⋯O hydrogen-bonded networks link cations to anions, while C-H⋯N inter-actions link cations ...
متن کامل1-(4-Cyanobenzyl)-4-methylpyridinium bromide
In the title compound, C(14)H(13)N(2) (+)·Br(-), the 1-(4-cyano-benz-yl)-4-methyl-pyridinium cation has a Λ-shaped conformation, and the dihedral angle between the benzene and pyridinium rings is 75.8 (2)°. In the crystal, two cations form a dimer through π-π inter-actions between pyridine rings [the centroid-centroid distance is 3.685 (1) Å].
متن کامل4-Cyano-1-methylpyridinium perchlorate
The title salt, C7H7N2 (+)·ClO4 (-), crystallizes with alternating cations and anions in wavy sheets, which are formed by a number of C-H⋯O and C-H⋯N hydrogen bonds, lying approximately parallel to (001).
متن کامل4-Cyano-1-methylpyridinium bromide
In the crystal of the title mol-ecular salt, C(7)H(7)N(2) (+)·Br(-), the cations form inversion dimers via weak pairwise C-H⋯N hydrogen bonds; their mean planes are separated by 0.292 (6) Å. Weak C-H⋯Br inter-actions involving all of the remaining H atoms tie the cations and anions together into sets of inter-penetrating sheets. The title compound is isostructural with its iodide analogue.
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عنوان ژورنال:
دوره 69 شماره
صفحات -
تاریخ انتشار 2013