The title compound, C(10)H(7)ClN(2), contains two approximately planar mol-ecules, A and B (r.m.s. deviations = 0.039 and 0.064 Å, respectively) in the asymmetric unit. In the crystal, N-H⋯N hydrogen bonds link the mol-ecules into C(7) chains of alternating A and B mol-ecules propagating along the a-axis direction. The crystal used for the data collection was found to be a racemic twin.

The asymmetric unit of the title compound, C(14)H(11)BrN(2)O(3), contains two crystallographically independent mol-ecules with slightly different conformations with respect to the aromatic rings; the dihedral angles between the two benzene rings in the two mol-ecules are 55.0 (7) and 16.3 (7)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O, O-H⋯O and O-H⋯N hydrog...

In the title compound, C(25)H(27)N(7)O(2)·H(2)O, the bis-[4-(dimethyl-amino)-benzyl-idene]pyridine-2,6-dicarbohydrazide mol-ecule and the water mol-ecule are located on a twofold rotation axis. The benzene and pyridine rings form a dihedral angle of 17.13 (7)°. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into a two-dimensional supermolecular structure para...

The title compound, C(27)H(27)N(7)O(6), a Schiff base, was synthesized by the reaction of triethyl-enetetra-mine with 3-nitro-benzealdehyde. There are two independent mol-ecules in the asymmetric unit. The central aromatic ring in one mol-ecule makes dihedral angles of 23.99 (7) and 20.06 (6)° with the two terminal rings; for the second mol-ecule, these angles are 26.14 (6) and 24.64 (6)°.

There are two independent mol-ecules in the asymmetric unit of the title compound, C(7)H(7)NO. The conformation of the N-H bond in the structure is syn to the C=O bond in one of the mol-ecules and anti in the other. In the crystal, mol-ecules are packed into chains diagonally in the ac plane via N-H⋯O hydrogen bonds.

AIMS To determine and quantify the prevalence of patient, provider and system level barriers to achieving diabetes care goals; and to examine whether barriers were different for people with poor glycemic control (HbA1c ≥ 10%; 86 mmol/mol) compared to fair glycemic control (7 to <8%; 53-64 mmol/mol). METHODS We administered a survey by telephone to community-dwelling patients with diabetes, to...

background: pentachlorophenol (pcp) is one of the most fungicides and pesticides. acute and chronic poisoning from pcp may be occurred by dermal absorption, and respiration or ingestion. with respect to health and environmental effects of pcp, many methods were considered regarding its removal. microwave assisted other methods are environmental friendly, safety, and economical method, consequen...

The conducting polymer films have been widely applied in the field of electrochemistry owing to their goodstability, permselectivity, unique physical and chemical properties. A novel nano-Au/poly (4-aminobenzoicacid) (PABA) film modified carbon paste electrode was fabricated for sensitive detection of acetaminophenin this paper. The PABA film and nano-Au/PABA film were characterized by scanning...

The title compound, C6H6N6S, crystallized with two independent mol-ecules (A and B) in the asymmetric unit. The conformation of the two mol-ecules differs slightly. While the tetra-zole ring is inclined to the pyrim-idene ring by 5.48 (7) and 4.24 (7)° in mol-ecules A and B, respectively, the N-C-S-C torsion angles of the thio-methyl groups differ by ca 180°. In the crystal, the A and B mol-ecu...

The complexation of zinc (II) with dopamine has been investigated by spectrophotometric measurements in mixed solvent system at an ionic strength of 0.2 mol*dm-3 sodium chloride, employed (25± 0.1° C) at pH ranges of ~6 to ~7 with a high ratio of ligand to metal.