In the title compound, C(5)H(5)ClN(2)·C(7)H(6)O(2), the carboxyl group of the benzoic acid mol-ecule is twisted away from the attached ring by 14.22 (7)°. In the crystal, the 2-amino-5-chloro-pyridine mol-ecules inter-act with the carboxyl groups of benzoic acid mol-ecules through N-H⋯O and O-H⋯N hydrogen bonds, forming cyclic R(2) (2)(8) hydrogen-bonded motifs, and linking the mol-ecules into ...

In the article, kinetic laws, kinetics, and mechanism of oxidative acetylation reaction ethylene in vapor phase were studied detail 0.4%Rd+4%Cu+7%CH 3 COOK/YuKTs catalyst. As a result research, following optimal conditions for selected: middle zone reactor at temperature 165°C, volume velocity 2000 h -1 , pressure 4 atm, ratio to acetic acid 4:1 an oxygen content 7% by volume. Under these condi...

The asymmetric unit of the title quinoxaline compound, C(10)H(9)N(3)O(2), contains two crystallographically independent mol-ecules (A and B). The quinoxaline ring systems are essentially planar, with maximum deviations of 0.006 (1) and 0.017 (1) Å, respectively, for mol-ecules A and B. In mol-ecule A, the dihedral angle formed between the quinoxaline ring system and nitro group is 10.94 (3)° [6...

The title furan-ocoumarin, C14H12O4 [systematic name: 9-hy-droxy-2-(prop-1-en-2-yl)-2,3-di-hydro-7H-furo[3,2-g]chromen-7-one], crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. The two mol-ecules differ essentially in the orientation of the propenyl group with respect to the mean plane of the furan-ocoumarin moiety; the O-C(H)-C=C torsion angle is 122.2 (7)° in mol-...

the distribution of total plasma homocysteine concentrations in relation to the sex and age is described, in a population of shiraz, south west of iran and compared to those reported in other populations.  two hundred and one healthy males and 201 healthy females aged >15 y were randomly selected.  total plasma homocysteine concentrations were measured using high performance liquid chromatograp...

There are three Ag(I) cations, three p-toluene-sulfonate (pts) anions, three hexa-methyl-ene-tetra-mine (hmt) mol-ecules and four water mol-ecules in the asymmetric unit of the title coordination polymer, {[Ag(3)(C(7)H(7)O(3)S)(3)(C(6)H(12)N(4))(3)(H(2)O)]·3H(2)O}(n). Two of the pts anions show positional disorder of their O atoms in 0.60:0.40 and 0.50:0.50 ratios. The Ag(I) ion is coordinated ...

In the title compound, [ZnCl(2)(C(7)H(6)N(2)S)(2)]·0.5CH(3)CH(2)OH, the Zn(II) atom is coordinated by two N atoms of two 2-amino-benzothia-zole ligands and two Cl atoms within a distorted tetra-hedral geometry. The dihedral angle between the N/Zn/N and Cl/Zn/Cl planes is 86.22 (7)°. The benzothia-zole mol-ecules are almost perpendicular to each other, forming a dihedral angle of 80.20 (8)°. The...

The crystal of the title Schiff base compound, C(20)H(18)ClN(3)O(3)·H(2)O, was twinned by a twofold rotation about (100). The asymmetric unit contains two crystallographically independent mol-ecules with similar conformations, and two water mol-ecules. The C=N-N angles of 115.7 (6) and 116.2 (6)° are significantly smaller than the ideal value of 120° expected for sp(2)-hybridized N atoms and th...

The asymmetric unit of the title compound, C(8)H(8)N(4)S(2), contains two crystallographically independent mol-ecules. The thio-phene ring of one mol-ecule is disordered over two positions with refined site occupancies of 0.6375 (19) and 0.3625 (19). One mol-ecule is almost planar and the other one is twisted, the dihedral angles between the thio-phene and triazole rings being 7.28 (7) and 48.9...