Synthesis and structure elucidation of several series new hydrazones containing 1,2,4-triazine-5-one core their antioxidant activity are presented. The target compounds have been synthesized via interaction either 4-amino-6-( tert -butyl)-3-hydrazinyl-1,2,4-triazin-5(4 H )-one or 6-( -butyl)-3-hydrazinyl-1,2,4-triazin-5(2 with a wide range carbonyl group in moderate to high yields. Molecular st...

The title compound, [Ir(η(5)-C5Me5)Cl(C18H14ClN3)]B(C6H5)4, is chiral at the metal center and crystallizes as a racemate. In the cation, the hydrazinyl-idene-pyridine ligand is N,N-coordinated through the N-pyridyl and N-hydrazinyl-idene groups forming a five-membered metallacycle. An intra-molecular C-H⋯Cl hydrogen bond is observed. In the crystal, centrosymmetrically-related cations are conne...

The title compound, C(15)H(15)N(3)O(2), contains benzonitrile and 4,4-dimethyl-2,6-dioxocyclo-hexyl-idene groups connected via a hydrazinyl group. The structure is in the hydrazone tautomeric form in the solid state. The benzonitrile and hydrazinyl groups (3-hydrazinylbenzonitrile) are essentially coplanar with an r.m.s. deviation of 0.016 Å. Intra-molecular N-H⋯O hydrogen bonding helps to stab...

A series of 2-pyrazolines 5-9 have been synthesized from α,β-unsaturated ketones 2-4. New 2-pyrazoline derivatives 13-15 bearing benzenesulfonamide moieties were then synthesized by condensing the appropriate chalcones 2-4 with 4-hydrazinyl benzenesulfonamide hydrochloride. Ethyl [1,2,4] triazolo[3,4-c][1,2,4]triazino[5,6-b]-5H-indole-5-ethanoate (26) and 1-(5H-[1,2,4]triazino[5,6-b] indol-3-yl...

In the title compound, C(14)H(17)N(5), the 1H-imidazo[4,5-c]quinoline ring system is essentially planar, with a maximum deviation of 0.0325 (7) Å. In the crystal, a pair of inter-molecular N-H⋯N hydrogen bonds link neighbouring mol-ecules, forming an inversion dimer and generate an R(2) (2)(10) ring motif. These dimers are further connected into a chain along the b axis via inter-molecular C-H⋯...

The V(V) atom in the title compound, [V(C(7)H(6)ClN(2)O)(C(16)H(11)ClN(2)O(3))O]·CH(3)OH, is N,O-chelated by the benzoyl-hydrazidate anion and O,N,O'-chelated by the (benzoyl-hydrazinyl-idene)propionate dianion. The distorted octa-hedral trans-N(2)O(4) coordination geometry is completed by the vanadyl O atom. The mononuclear and solvent mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds ab...

There are two independent mol-ecules in the asymmetric unit of the title compound {systematic name: ethyl 2-(2-methyl-1H-benzimidazol-1-yl)-2-[2-(4-nitro-phen-yl)hydrazinyl-idene]ethano-ate}, C(18)H(17)N(5)O(4). Each mol-ecule and its inversion-related partner are linked by a pair of inter-molecular N-H⋯N hydrogen bonds, forming inversion dimers in the crystal structure.