The title compound, C(10)H(12)FN(3)S, crystallizes in the same space group (P2(1)/c) as two polymorphic forms of 4-phenyl-1-(propan-2-yl-idene)thio-semicarbazone [Jian et al. (2005). Acta Cryst. E61, o653-o654; Venkatraman et al. (2005). Acta Cryst. E61, o3914-o3916]. The arrangement of mol-ecules relative to the twofold screw axes is similar to that in the crystal structure of the lower densit...

High Power Microwave technology has matured to the point where practical ElectroMagnetic Pulse [1] weapons are becoming technically feasible, with applications in Electronic Combat, Offensive Counter-Air, Combat Air Support and in Strategic Air Attack. The current development of conventional ElectroMagnetic Pulse devices allows their use in non-nuclear confrontations. This paper proposes a doct...

The asymmetric unit of the title compound, C(7)H(8)N(4)S, contains two independent mol-ecules with slightly different conformations; the dihedral angles between the pyridine ring and mean plane of the thio-semicarbazone unit in the two mol-ecules are 2.88 (5) and 6.30 (5)°. Inter-molecular N-H⋯N and N-H⋯S hydrogen bonds link the mol-ecules into layers parallel to the ab plane.

The title compound, C(11)H(13)N(3)S, is close to being planar, with a dihedral angle of 9.64 (3)° between the benzene ring and the thio-semicarbazone mean plane, maintained by the presence of π-conjugation in the chain linking the the two systems. In the crystal, N-H⋯S hydrogen bonds form centrosymmetric dimers through a cyclic association [graph-set R(2) (2)(8)].

Human cathepsin B was purified by affinity chromatography on the semicarbazone of Gly-Phe-glycinal linked to Sepharose 4B, with elution by 2,2'-dipyridyl disulphide at pH 4.0. The product obtained in high yield by the single step from crude starting material was 80-100% active cathepsin B. The possibility that this new form of affinity chromatography may be of general usefulness in the purifica...

The asymmetric unit of the title compound, C(9)H(11)N(3)O(2)S·0.5H(2)O, comprises two crystallograpically independent thio-semicarbazone mol-ecules (A and B) and a water mol-ecule of crystallization. In each of the thio-semicarbazone mol-ecules, intra-molecular O-H⋯O and N-H⋯N hydrogen bonds form five-membered rings, producing S(5) ring motifs. Inter-molecular O-H⋯S and N-H⋯O inter-actions betw...

In the title complex, [Cd(C12H11N4S2)I(C12H12N4S2)], the Cd(II) ion is penta-coordinated by two thio-semicarbazone ligands (one neutral and the other anionic) and one iodide ion in a distorted square pyramidal (τ = 0.35) geometry. The central ion is coordinated by the thia-zole N atom, the thio-ureido N and the S atom of the deprotonated thio-semicarbazone ligand. The other ligand is linked wit...