In the title complex, [Zn(NCS)(2)(C(9)H(9)N(3)O)(2)], the Zn(II) ion is coordinated by two N atoms from the NCS(-) anions and two N atoms from two 4-(4-methoxy-phen-yl)-4H-1,2,4-triazole ligands in a slightly distorted tetra-hedral geometry. Three inter-molecular weak hydrogen-bonding contacts of the types C-H⋯N, C-H⋯S and C-H⋯O are observed in the crystal structure.

The title complex, [Cu(2)(CH(3)COO)(4)(C(16)H(11)N(3))(2)], lies on an inversion centre, with four acetate ligands bridging two symmetry-related Cu(II) ions and two monodentate 9-(pyrazin-2-yl)-9H-carbazole ligands coordinating each Cu(II) ion via the N atoms of the pyrazine rings, forming slightly distorted square-pyramidal geometries. There are weak π-π stacking inter-actions between the pyrr...

synthesis of some new monocyclic β-lactams containing a quaternary carbon center via a [2+2]cycloaddition reaction is described. the reaction of achiral diphenyl ketene with chiral aldimines derivedfrom chiral 2, 3, 4, 6-tetra-o-acetyl-β-d-galactopyranosylamine, 2, 3, 4, 6-tetra-o-acetyl-β-dglucopyranosylamine and different benzaldehydes resulted in the formation of β-lactams as singlediastereo...

β-thalassemia, a monogenic autosomal recessive disorder, is prevalent in middle east, particularly in iran. in iran, near to 20 mutations in the β-globin gene are introduced as common mutations with varying incidence frequencies in each city. therefore, detection and screening for couples at high risk can help to solve the problems of this disease. in this study, optimized genotyping of two com...

The asymmetric unit of the title compound, {[Mn3{W(CN)8}2(C16H16N2)3(C3H7NO)3(CH3OH)3]·2H2O} n , consists of three [Mn(N,N-di-methyl-formamide)(methanol)(3,4,7,8-tetra-methyl-1,10-phenanthroline)](2+) cations, two [W(CN)8](3-) anions and two water mol-ecules. Each water mol-ecule is disordered over three sets of sites, with a refined occupancy ratio of 0.310 (9):0.275 (9):0.415 (9) for one mol-...

Hydro-thermal reaction involving zinc nitrate hexa-hydrate, tris-odium benzene-1,3,5-tricarboxyl-ate (Na(3)BTC) and 2-methyl-imidazole (2-MeImH) yielded the title compound, [Zn(2)(C(9)H(3)O(6))(C(4)H(5)N(2))(C(4)H(6)N(2))(3)]. In this mixed-ligand metal-organic compound, Zn(2+) ions are coordinated by N atoms from 2-MeImH mol-ecules and (2-MeIm)(-) ions, as well as by O atoms from (BTC)(3-) ion...

In the polymeric title compound, [Zn(C(7)H(9)NO(7)P(2))](n), the zinc(II) centre displays a tetra-hedral coordination geometry provided by four O atoms from three different phospho-nate groups. The crystal structure consists of ladder chains parallel to the b axis built up from vertex-sharing of ZnO(4) and PO(3)C tetra-hedra. The chains are linked by strong intra- and inter-chain O-H⋯O and N-H⋯...

The biotransformation of 13α,17-dihydroxystemodane (3) with the fungus Cephalosporium aphidicola afforded 13α,17,18-trihydroxystemodane (4), 3β,13α,17-tri-hydroxystemodane (5), 13α,17-dihydroxy-stemodan-18-oic acid (6), 3β,11β,13α,17-tetra-hydroxystemodane (7), 11β,13α,17,18-tetrahydroxystemodane (8) and 3β,13α,17,18-tetra-hydroxystemodane (9). The hydroxylation at C-18 of the substrate points ...