The mol-ecular skeleton of the title mol-ecule, C(9)H(11)ClN(4)O, is essentially planar, the dihedral angle between the ring and the and N/N/C plane being 6.7 (3)°. In the crystal, inter-molecular N-H⋯O and N-H⋯N hydrogen bonds link the mol-ecules into ribbons propagated along [010].

Cyclic voltammetry and potentiodynamic polarization analyses were utilized to investigate the mechanism kinetics of glycine leaching reactions for chalcopyrite. The effects pH (9–12), temperature (30–90 °C) concentration (0–2 mol/L) on corrosion current density, potential cyclic voltammograms investigated using chalcopyrite concentrate–carbon paste electrodes. Results showed that an increase in...

The title compound, C(17)H(15)N(3)OS, crystallizes with two unique mol-ecules, denoted 1 and 2, in the asymmetric unit. The two mol-ecules are closely similar and overlay with an r.m.s. deviation of 0.053 Å. Both mol-ecules adopt E configurations with respect to the C=N bonds. The dihedral angles between the benzothio-phene groups and N-bound phenyl rings are 36.36 (9)° for mol-ecule 1 and 29.7...

The mol-ecule of the title compound, C(13)H(9)NO(2), is slightly twisted with a dihedral angle of 4.85 (9)° between the nine-membered ring system and the phenyl ring. The nine non-H atoms of the 1H-pyrrolo[2,1-c][1,4]oxazin-1-one system are coplanar [r.m.s. deviation = 0.0122 (2) Å]. In the crystal, weak inter-molecular C-H⋯O inter-actions link mol-ecules into chains along [10]. The crystal stu...

In the mol-ecule of the title compound, C(9)H(7)NOS(2), the heterocycle and the phenyl ring are oriented at a dihedral angle of 72.3 (1)°. Adjacent mol-ecules are connected through C-H⋯O inter-actions.

earity was apparent between 0.15 and 10 ␮mol/L (r ϭ 0.99). The recovery was 101% Ϯ 10%. Because serum ubiquinone-10 values in our sample pediatric population did not follow a gaussian distribution (assessed by the Kol-mogorov–Smirnov test), we calculated the median and the 2.5 and 97.5 percentiles for reference values. The ubiquinone concentration was independent of sex (P Ͼ0.05, Mann– Whitney ...

In the crystal, mol-ecules of the centrosymmetric title compound, C12H4Br2F4N2, are linked into strands along [011] by weak C-H⋯F contacts. Furthermore, the mol-ecules are π-π stacked with perpendicular ring distances of 3.4530 (9) Å.

The asymmetric unit of the title compound, C(11)H(9)N(3)O, contains two independent and nearly identical mol-ecules (A and B). Mol-ecule A can be transformed to B using a rotation of approximately 85° around the [111] direction. Each A mol-ecule is connected to three B mol-ecules via N-H⋯N and N-H⋯O hydrogen bonds and vice versa. Centrosymmetric-ally related mol-ecules of the same residue form ...

The heat of the reaction NAD(+)+propan-2-ol=NADH+acetone+H(+) was determined to be 42.5+/-0.6kJ/mol (10.17+/-0.15kcal/mol) from equilibrium measurements at 9-42 degrees C catalysed by yeast alcohol dehydrogenase. With the aid of thermochemical data for acetone and propan-2-ol the values of DeltaH=-29.2kJ/mol (-6.99kcal/mol) and DeltaG(0)=22.1kJ/mol (5.28kcal/mol) are derived for the reduction o...