In the mononuclear title compound, [Cu(II)(C(18)H(12)N(2)O(2))(C(5)H(5)N)], the Cu(II) ion is coordinated by two O atoms and one N atom from the dianionic tridentate L(2-) ligand (H(2)L is 2-hy-droxy-1-naphthaldehyde benzoyl-hydrazide) and one N atom from a pyridine mol-ecule in a CuN(2)O(2) distorted square-planar coordination environment.

Z. Naturforsch. 56 b, 581-588 (2001); received April 6 , 2001 Iron Sulphur Complexes, Nitrogenase The reactions of [Fe('pyS4 ')l2 with PMe3 , P«Pr3 , N2 H4 and pyridine afforded mononuclear [Fe(L)('pyS4 ')] complexes with L = PMe3 ( 1 ), PnPr3 (2 ), N2 H4 (3) and pyridine (4). NMR spectroscopy, magnetic measurements and X-ray structure determinations revealed that all complexes exhibit frans-th...

Cloretazine (VNP40101M; 101M; 1,2-bis(methylsulfonyl)-1-(2-chloroethyl)-2-[(methylamino)carbonyl]hydrazine) is a sulfonylhydrazine prodrug that generates both chloroethylating and carbamoylating species on activation. To explore the molecular mechanisms underlying the broad anticancer activity observed in preclinical studies, cloretazine and chloroethylating-only [i.e., 1,2-bis(methylsulfonyl)-...

Previous studies (1, 2) have demonstrated that resting cell suspensions of Escherichia coli B not only incorporate 2,6diaminopurine into 5’-nucleotides but also metabolize it to 2methylamino-6-aminopurine, which is then converted to 5’phosphoribosyl-2-methylamino-6-aminopurine. For methyldiaminopurine synthesis, crude, cell-free extracts of E. coli B require methionine,l ATP, Mg++, and diaminop...

First, Schiff base iminopyridine ligands has been prepared by the condensation between primaryamines, different substituted anilines and active carbonyl group of pyridine carboxaldehyde, thenthe complexes [diiodo (3-ethylphenyl) pyridine-2-yl methylene amine] mercury(II), complex a,[dibromo (2,5-dimethylphenyl) pyridine-2-yl methylene amine] mercury(II) complex b, and[dinitrato bis-(2,6-dimethy...

The reactivity and catalytic activities of the tert-butoxy aluminium hydride reagents [((t)BuO)xAlH3-x] [x = 1 (1), 2 (2)] and (L)Li[((t)BuO)2AlH2] [L = THF (3), 1,4-dioxane (4)] are investigated. The structural characterisation of the novel compounds 3 and 4 shows that the nature of the hydridic species present is affected dramatically by the donor ligand coordinating the Li(+) cation. Stoichi...

This work deals with the preparation of pyridine-3-carbohydrazide (isoniazid, inh) cocrystals two ?-hydroxycarboxylic acids. The interaction glycolic acid (H2ga) or d,l-mandelic (H2ma) resulted in formation salts composition (inh)·(H2ga) (1) and [Hinh]+[Hma]–·(H2ma) (2) when reacted isoniazid. An N?-(propan-2-ylidene)isonicotinic hydrazide hemihydrate, (pinh)·1/2(H2O) (3), was also prepared by ...

Abstract The adsorption performance of pyridine onto polyaluminium chloride (PAC) and anionic polyacrylamide (APAM) water treatment residuals (WTRs) was investigated by batch experiments. This study confirmed the assumption that PAC–APAM WTRs had ability to remove pyridine. non-linear Dubinin–Radushkevich model Freundlich better described isotherms, indicating a chemically controlled multilayer...