The benzohydrazide mol-ecule of the title compound, C(14)H(10)BrClN(2)O(5)·CH(3)OH, is non-planar, the two aromatic rings at either side of the -C(=O)-NH-N=CH- unit being twisted by 5.9 (1)°. The benzohydrazide mol-ecule is linked to the solvent mol-ecule by an O-H⋯O hydrogen bond. Mol-ecules are connected by further O-H⋯O hydrogen bonds and an N-H⋯O link into a two-dimensional array.

In the crystal structure of the title compound, C(14)H(14)N(4)O(2), the mol-ecules are almost planar (mean deviation 0.028 Å) and a weak intra-molecular N-H⋯O hydrogen bond between the H atom bound to an oxamide N atom and a carbonyl O atom is found. The asymmetric unit consits of one half-mol-ecule which is located on a centre of inversion.

In the crystal structure of the title Mn(II) complex, [Mn(C(7)H(4)BrO(2))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], the Mn(II) cation is located on an inversion center and coordinated by two diethyl-nicotinamide (DENA) ligands, two 4-bromo-benzoate (PBB) anions and two water mol-ecules in a distorted octa-hedral geometry. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring ...

The title compound, C(16)H(14)ClN(3)O(2)S, crystallizes with two mol-ecules in the asymmetric unit. In the 1,3-thia-zolidine rings, the carbonyl O atoms, the S atoms, the methyl groups and the ring carbon attached to the methyl groups are disordered with occupancy ratios of 0.509 (7):0.491 (7) in one mol-ecule and 0.464 (14):0.536 (14) in the other. The crystal structure is stabilized by inter-...

Human plasma kallikrein. a product of contact-activated plasma proteolysis. is moderately inhibited by aprotinin. a small polypeptide from bovine lung that has been used as an experimental drug in human disease states. Aprotinin has a Lys residue in the P1 (reactive center) position occupying residue 1 5. Since kallikrein is an argininedirected serine protease. we hypothesized that an altered f...

The title mol-ecule, C(14)H(14)O(4), lies on a twofold rotation axis that bis-ects the central benzene ring, with only one half-mol-ecule in the asymmetric unit. The pyran-one systems adopt distorted twist- boat conformations, with the two methyl-ene C atoms displaced by 0.537 (1) and 0.163 (2) Å from the best-fit plane through the remaining five C and O atoms (r.m.s. deviation = 0.073 Å). In t...

The asymmetric unit of the title mononuclear Cu(II) complex, [Cu(C(7)H(4)FO(2))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], contains one-half of the mol-ecule. The Cu(II) ion is located on an inversion centre, and is coordinated by two N atoms from two diethyl-nicotinamide ligands, two O atoms from two 4-fluoro-benzoate (PFB) ligands and two water mol-ecules in a distorted octa-hedral geometry. In the P...

The asymmetric unit of the 1:4 title co-crystal of 2-amino-4-(4-chloro-phen-yl)-5,6-dihydro-benzo[h]quinoline-3-carbonitrile and 3-amino-1-(4-chloro-phen-yl)-9,10-dihydro-phenanthrene-2,4-dicarbonitrile, 0.2C(20)H(14)ClN(3)·0.8C(22)H(14)ClN(3), has the atoms of the fused-ring system and those of the amino, cyano and chloro-phenyl substitutents overlapped. The fused-ring system is buckled owing ...

A Pt microelectrode modified with nickel(II) polytetramethyldibenzo[b,i]tetraaza[14]annulene was prepared by electropolymerization of nickel(II) tetramethyldibenzo[b,i]tetraaza[14]annulene monomers and applied to determine sulfur dioxide in vitriol plant wastewater. For determination of SO2 with this electrochemically modified Pt microelectrode, the linear range was from 9.6 x 10(-6) to 2.4 x 1...