In the title compound {systematic name: 4,4'-[1,1'-(hydrazinediyl-idene)bis-(ethan-1-yl-1-yl-idene)]bis-(benzene-1,3-diol)}, C16H16N2O4·2C3H7NO, the (E,E)-2',4'-di-hydroxy-aceto-phenone azine mol-ecule is centrosymmetric, the mid-point of the N-N bond being located on an inversion centre. All the non-H atoms of the azine mol-ecule are approximately coplanar, the maximum deviation being 0.017 (2...

The asymmetric unit of the title compound, C10H8N2S2, is composed of two independent half-mol-ecules, each residing on a center of symmetry. In the crystal, weak C-H⋯π inter-actions join the two symmetry-independent molecules together into interlinked chains parallel to [011]. The crystal structure was refined as a two-component pseudo-merohedral twin using the twin law 001 0-10 100. The refine...

The complete mol-ecule of the title compound, C(28)H(24)N(2)O(2), is generated by a centre of inversion (at the mid-point of the N-N bond). The substituents at the ends of the C=N bonds adopt an E,E configuration. The central -CH=N-N=CH- fragment is planar, but as a whole the mol-ecule is not: the benz-yloxy group is rotated about the O-C bond by 69.3 (2)° with respect to the plane of the benzy...

An azine monomer 4-hydroxy-3-methoxybenzaldehyde azine was synthesized by refluxing with ethanolic solution of vanillin with hydrazine hydrate. It was then converted into polyazine by oxidative polymerization. The structure of azine and polyazine was characterized by FT-IR, UV-visible, 1H-NMR and 13C-NMR. Spectral results suggest the formation of polymer, through C-C and C-O-C coupling of the p...

This review summarizes our studies on the development of the syntheses of cyclazine derivatives. These studies involve the following four main subjects; 1) the studies on cycl[3.2.2]azine derivatives; 2) the studies on cycl[3.3.2]azinone derivatives; 3) the studies on azacycl[3.3.3]azine derivatives; 4) the studies on cyclazinophane derivatives.

In an asymmetric unit of the title compound, C(8)H(12)N(2)S(4), there are two crystallographically independent half mol-ecules lying on inversion centers. One of the mol-ecules is disordered over two positions with relative occupancies of 82.0 (2) and 18.0 (2) for the major and minor components. In the crystal structure, mol-ecules are linked into a three-dimensional framework via inter-molecul...

The C=N-N=C linkage [torsion angle -172.5 (2)°] in the title azine, C(20)H(28)N(2), adopts a trans conformation. The six-membered rings adopt sofa conformations.

In the centrosymmetric title complex, [Cu(2)(C(12)H(10)N(4))(C(18)H(15)P)(4)](BF(4))(2)·2CH(2)Cl(2), the Cu(I) atom adopts a distorted tetra-hedral geometry, defined by two P atoms from two triphenyl-phosphine ligands and two N atoms from a pyridine-2-carbaldehyde azine ligand. The two Cu atoms are bridged by the centrosymmetric pyridine-2-carbaldehyde azine ligand. The F atoms of the tetra-flu...