Reactions of 1,2,5-Thiadiazole-3,4-dicarbonitrile.
نویسندگان
چکیده
منابع مشابه
2,5-Diaminothiophene-3,4-dicarbonitrile
In the title compound, C(6)H(4)N(4)S, the planar mol-ecule lies across a crystallographic mirror plane. In the crystal, the mol-ecules form centrosymmetric dimers through cyclic amino N-H⋯N hydrogen-bonding associations with cyano N-atom acceptors [graph set R(2) (2)(12)] and these dimers are extended through amine-cyano N-H⋯N associations into a three-dimensional network.
متن کامل4,5-Diaminobenzene-1,2-dicarbonitrile
The mol-ecular skeleton of the title mol-ecule, C(8)H(6)N(4), is essentially planar [maximum deviation from the mean plane of 0.037 (2) Å]. All N atoms are involved in the formation of inter-molecular N-H⋯N hydrogen bonds. The crystal packing exhibits also dipole-dipole inter-actions between the cyano groups of neighbouring mol-ecules [C⋯C 3.473 (2) Å].
متن کامل2,6-Dichloropyridine-3,5-dicarbonitrile
In the crystal, essentially planar (r.m.s. deviation = 0.003 Å) mol-ecules of the title compound, C(7)HCl(2)N(3), form chains along the b axis by means of C-H⋯N inter-actions. These chains are further linked into layers parallel to the ab plane by C-Cl⋯N inter-actions.
متن کامل5,6-Dimethylpyrazine-2,3-dicarbonitrile
The asymmetric unit of the title compound, C(8)H(6)N(4), contains two almost planar independent mol-ecules (r.m.s. deviations = 0.026 and 0.030 Å). The crystal studied was a non-merohedral twin with the components in a 0.513 (2):0.487 (2) ratio.
متن کامل2,2′-Bithiophene-3,3′-dicarbonitrile
The complete mol-ecule of the title compound, C(10)H(4)N(2)S(2), is generated by an inversion center situated at the mid-point of the bridging C-C bond. The bithio-phene ring system is planar [maximum deviation = 0.003 (2) Å] and the central C-C bond length is 1.450 (2) Å. There are no significant inter-molecular inter-actions in the crystal structure, which is stabilized by van der Waals inter...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1994
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.48-0372