Acta Crystallographica Section EStructure Reports Online was launched in January 2001 as the IUCr's first electronic-only journal. It is a rapid communication journal for the publication of concise reports on inorganic, metal-organic and organic structures, and benefits from an enhanced electronic publication procedure. Each published report includes a set of key indicators, giving a summary of the main descriptors of the precision and completeness of the study, with indications of problems such as disorder. The publication...3-O-Ethyl-l-ascorbic acid- April 16, 2008 In the crystal structure of the title compound, C8H12O6, molecules are linked to each other by OH...O hydrogen bonding.http://scripts.iucr.org/cgi-bin/paper?xu2411 N-(3-Chlorophenyl)-2-methylbenzamide- April 16, 2008 The conformation of the NH bond in the structure of the title compound, C14H12ClNO, is anti to the meta-chloro substituent in the aniline ring, while the C=O bond is syn to the ortho-methyl substituent in the benzoyl ring. The conformations of the NH and C=O bonds are anti to each other, similar to those observed in 2-methyl-N-(3-methylphenyl)benzamide (N3MP2MBA). The NHC(=O) group makes a dihedral angle of 55.8(7) with the benzoyl ring, while the angle between the benzoyl and aniline rings is..http://scripts.iucr.org/cgi-bin/paper?om2228 2-(E)-Benzyliminomethyl-4-methylphenol- April 16, 2008 In the title Schiff base, C15H15NO, the benzene rings form a dihedral angle of 74.91(1). There is a strong intramolecular OH...N hydrogen bond.http://scripts.iucr.org/cgi-bin/paper?gk2138 (Z)-1,2-Bis(4-nitrophenyl)ethene. Corrigendum- April 16, 2008 The name of the first author in the paper by Chen & Cao Acta Cryst. (2007), E63, o3999 is corrected.http://scripts.iucr.org/cgi-bin/paper?si9032 Aquadioxidobis(pentane-2,4-dionato)uranium(VI) pyrazine solvate- April 16, 2008 The asymmetric unit of the title compound, U(C5H7O2)2O2(H2O)C4H4N2, contains one UO2(acac)2(H2O) (where acac is acetylacetonate) and two half-molecules of pyrazine. It exhibits a UO7 pentagonal-bipyramidal coordination geometry about the UVI atom, involving two bidentate acetylacetonate ions and one water molecule. The N atoms of the pyrazine molecules are not coordinated to the UVI atom, and are connected with the aqua O atom by hydrogen bonds. This results in a zigzag chain arrangement along..http://scripts.iucr.org/cgi-bin/paper?hk2447 Tristris(1,10-phenanthroline-2N,N)iron(II) dodecatungstoferrate dihydrate- April 16, 2008 The title compound, Fe(C12H8N2)33FeW12O402H2O, was prepared under hydrothermal conditions. The discrete Keggin-type FeW12O406 heteropolyoxoanion has threefold symmetry, with the FeII atom located on the threefold rotation axis. The central FeO4 tetrahedron in the anion shares its O atoms with four W3O13 trinuclear units, each of which is made up of three edge-shared WO6 octahedral units. The FeII atom in the complex cation, viz Fe(phen)32+ (phen is 1,10-phenanthroline), shows a slightly...http://scripts.iucr.org/cgi-bin/paper?hy2126 Tetrakis(3-2-1,1-bis(hydroxymethyl)-2-oxidoethyliminomethyl-6-methoxyphenolato)tetranickel(II) tetrahydrate- April 16, 2008 The title complex, Ni4(C12H15NO4)44H2O, has crystallographic fourfold inversion symmetry, with each NiII ion coordinated in a slightly distorted square-pyramidal coordination environment and forming an Ni4O4 cubane-like core. In the crystal structure, intermolecular OH...O hydrogen bonds connect complex and water molecules to form a three-dimensional network. The O atom of one of the unique hydroxymethyl groups is disordered over two sites, with the ratio of occupancies being approximately...http://scripts.iucr.org/cgi-bin/paper?lh2612 Bis1-(2-hydroxyethyl)-2-methyl-5-nitro-1H-imidazole-N3silver(I) nitrate- April 16, 2008 In the title compound, Ag(C6H9N3O3)2NO3, the Ag atom is bicoordinated in a distorted linear configuration by two 1-(2-hydroxyethyl)-2-methyl-5-nitroimidazole ligands through one of the N atoms. The dihedral angle between the two imidazole rings is 16.1(2). The O atoms of the nitrate anion are disordered over two positions; the site occupancy factors are 0.8 and 0.2. The ions are connected by CH...O interactions, while two weak intramolecular CH...O interactions producing an S(6) ring motif are..http://scripts.iucr.org/cgi-bin/paper?ez2123 Bis(5-cyclopentadienyl)bis(2,4,6-trimethylphenyltellurolato)zirconium(IV)- April 16, 2008 The structure of the title compound, Zr(C5H5)2(C9H11Te)2, consists of a zirconium(IV) centre bonded to two 5-coordinated cyclopentadienyl groups and two mesityltellurolate ligands; the discrete molecule has crystallographic twofold rotation symmetry. The structural parameters compared with those in (5-Me5Cp)2Zr(TePh)2 Howard, Trnka & Parkin (1995). Inorg. Chem. 34, 59005909 show that the greater steric demands of the bulky mesityl substituents are accommodated by widening TeZrTe (8) and by..http://scripts.iucr.org/cgi-bin/paper?sj2480 Chlorido5,5-dimethoxy-2,2-1,2-phenylenebis(nitrilomethylidyne)diphenolato-4O,N,N,Omanganese(III)- April 16, 2008 In the title complex, Mn(C22H18N2O4)Cl, the MnIII centre is in a distorted square-pyramidal configuration, with the basal plane formed by the N2O2 donors of the tetradentate Schiff base dianion; the two phenolate O atoms and the two imine N atoms are each mutually cis. The chloride ion occupies the apical position. The dihedral angle between the two outer phenolate rings of the tetradentate Schiff base ligand is 16.44(9). The central benzene ring makes dihedral angles of 10.64(9) and 25.17(10)..http://scripts.iucr.org/cgi-bin/paper?is2286 |