N′-[3-(Hy­droxy­imino)­butan-2-yl­idene]-4-methyl­benzene-1-sulfono­hydrazide

In the title compound, C₁₁H₁₅N₃O₃S, the C—S—N(H)—N linkage is nonplanar, the torsion angle being 75.70 (12)°. The compound has two almost planar fragments linked to the S atom: the hydrazone-derivative fragment [(HONC₄H₆)N—N(H)–] and the tolyl fragment (C₇H₇–) have maximum deviations from the mean plane through the non-H atoms of 0.0260 (10) and 0.0148 (14) Å, respectively. The two planar fragments make an inter­planar angle of 79.47 (5)°. In the crystal, mol­ecules are connected through inversion centers via pairs of N—H...O and O—H...N hydrogen bonds.

Bis{4-phenyl-1-[1-(pyridin-2-yl-κN)ethyl­idene]thio­semicarbazidato-κ²N¹,S}cadmium

The reaction of cadmium acetate dihydrate with 2-acetyl­pyridine (4-phenyl­thio­semicarbazone) yielded the title compound, [Cd(C₁₄H₁₃N₄S)₂]. The Cd^II atom is six-coordin­ated in a distorted octa­hedral environment by two deproton­ated thio­semicarbazone ligands acting in a tridentate chelating mode through two N and one S atoms, forming metalla-rings. In the crystal, mol­ecules are connected through inversion centers via pairs of N—H...S inter­actions, building a one-dimensional hydrogen-bonded polymer along [0-1-1].

[1-(5-Bromo-2-oxidobenzyl­idene)thio­semicarbazidato-κ³O,N¹,S](pyridine-κN)nickel(II)

The reaction of 5-bromo­salicyl­aldehyde thio­semicarbazone with nickel acetate tetra­hydrate and pyridine yielded the title compound, [Ni(C₈H₆BrN₃OS)(C₅H₅N)]. The Ni^II atom is four-coordinated in a square-planar environment by one deprotonated dianionic thio­semicarbazone ligand, acting in a tridentate chelating mode through N, O and S atoms forming two metalla-rings, and by one pyridine mol­ecule. The complex mol­ecules are linked into dimers by pairs of centrosym­metrical N—H...N inter­actions. In addition, mol­ecules are connected through inter­molecular Br...Br inter­actions [3.545 (1) Å], forming chains along the b-axis direction.

1-(2,4,6-Trioxo-1,3-diazinan-5-yl­idene)thio­semicarbazide

The title mol­ecule, C₅H₅N₅O₃S, is approximately planar, with a maximum deviation from the mean plane through the non-H atoms of 0.182 (3) Å for the amine N atom. In the crystal, mol­ecules are connected via N—H...O and N—H...S inter­actions, building a three-dimensional hydrogen-bonded network. Additionally, a weak intra­molecular N—H...O hydrogen bond is observed.