N′-(But-2-enylidene)isonicotinohydrazide
نویسندگان
چکیده
In the title Schiff base compound, C(10)H(11)N(3)O, the pyridine ring is twisted with respect to the mean plane containing the hydrazine chain, making a dihedral angle of 31.40 (9)°. The NH group inter-acts with the N atom of the pyridine ring through N-H⋯N hydrogen bonds to build up a zigzag chain developing parallel to the (01) plane.
منابع مشابه
N′-[4-(2-Furyl)but-3-en-2-ylidene]isonicotinohydrazide
The mol-ecule of the title Schiff base compound, C(14)H(13)N(3)O(2), is not perfectly planar; the furyl and pyridine rings are twisted with respect to each other along the C(4)N(2)C(2) organic chain, making a dihedral angle of 13.3 (1)°. The occurence of N-H⋯O hydrogen bonds builds up a chain developing parallel to the c axis.
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The title compound, C(16)H(14)N(2)OS(2), is an example of a push-pull butadiene in which the electron-releasing and electron-withdrawing attachments on either end of the butadiene chain enhance the conjugation in the system. The mol-ecules are linked by inter-molecular C-H⋯N inter-actions.
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In the title compound, C(31)H(27)N(3), the cyclo-hexene ring has an envelope configuration. In the crystal structure, there is an 34 Å(3) void around the inversion center, but the low electron density (0.13 e Å(-3)) in the difference Fourier map suggests no solvent mol-ecule occupying this void. No hydrogen bonding is found in the crystal structure.
متن کامل1-(But-2-enylidene)-2-(2-nitrophenyl)hydrazine
The mol-ecule of the title Schiff base compound, C(10)H(11)N(3)O(2), adopts an E geometry with respect to the C=N double bond. The mol-ecule is roughly planar, with the largest deviation from the mean plane being 0.111 (2) Å, The enyl-idene-hydrazine group is, however, slightly twisted with respect to the phenyl ring, making a dihedral angle of 6.5 (3)°. An intra-molecular N-H⋯O hydrogen bond m...
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In the crystal structure of the title compound, [CoBr(2)(C(21)H(22)N(2))], the Co(II) atom is four-coordinated by two bromide anions and two N atoms from the bidentate Schiff base ligand in a distorted tetra-hedral geometry.
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