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...Bis3-ethyl-4-(4-methoxyphenyl)-5-(2-pyridyl)-4H-1,2,4-triazole-2N1,N5bis(perchlorato-O)copper(II) acetonitrile disolvate- April 30, 2008 In the title compound, Cu(ClO4)2(C16H16N4O)22CH3CN, the CuII atom, located on an inversion center, is in a tetragonally distorted octahedral environment, coordinated by four N atoms of two bidentate 3-ethyl-4-(4-methoxyphenyl)-5-(2-pyridyl)-4H-1,2,4-triazole ligands in equatorial positions and by the O atoms of two perchlorate groups in axial positions. The long axial CuO bond of 2.4743(17) is the result of the JahnTeller effect.http://scripts.iucr.org/cgi-bin/paper?gk2140 (Acetone-O)6,6-di-tert-butyl-2,2-1,2-phenylenebis(nitrilomethylidyne)diphenolato-4O,N,N,Ozinc(II)- April 30, 2008 The molecule of the title compound, Zn(C28H30N2O2)(CH3COCH3), lies across a mirror plane with the ZnII ion and the acetone molecule on the mirror plane. The ZnII ion is in a five-coordinate distorted square-pyramidal N2O3 environment, with the two imine N and two phenolic O atoms of the tetradentate Schiff base dianion in the basal plane and the acetone molecule in the apical position. The central benzene ring makes a dihedral angle of 16.5(2) with the two outer phenolate rings. In the crystal..http://scripts.iucr.org/cgi-bin/paper?ci2585 -Pyrazine-bistetraaquacadmium(II) -pyrazine-bistetraacetatocadmium(II)- April 30, 2008 In the title dinuclear ionic complex, Cd2(C4H4N2)(H2O)8Cd2(CH3CO2)8(C4H4N2), the cation and anion are disordered equally over a site with symmetry mmm. The CdII ions and the N atoms of the bridging pyrazine ligand lie on the intersection of two crystallographic mirror planes. The C atoms of the bridging pyrazine ligand lie on one of these mirror planes, and the acetate groups and water molecules lie across the intersecting mirror planes. Each CdII atom in the cation is five-coordinated by four..http://scripts.iucr.org/cgi-bin/paper?ci2576 Polybis(4-benzene-1,4-dicarboxylato)(4-succinato)diterbium(III)- April 30, 2008 In the title compound, Tb2(C4H4O4)(C8H4O4)2n, the coordination around each Tb atom is distorted square-antiprismatic. The benzene-1,4-dicarboxylate and succinate anions bridge the antiprisms, forming a three-dimensional network. The succinate anion is located on a centre of inversion. The structure is isomorphous with the Dy, Gd, Er and Nd complexes.http://scripts.iucr.org/cgi-bin/paper?bt2699 TrisN-(2-furoyl)-N,N-diphenylthioureato-2O,Scobalt(III)- April 30, 2008 In the title compound, Co(C18H13N2O2S)3, the CoIII atom is coordinated by the S and O atoms of three N-furoyl-N,N-diphenylthiourea ligands in a slightly distorted octahedral geometry. The three O atoms are arranged fac, as are the three S atoms.http://scripts.iucr.org/cgi-bin/paper?hy2130 Bis(benzo-15-crown-5-5O)strontium bis(triiodide)- April 30, 2008 The title compound, Sr(C14H20O5)2(I3)2, obtained by slow evaporation of an ethanoldichloromethane solution (1:1) of SrCl2, benzo-15-crown-5 and I2, is built of sandwich-like Sr(benzo-15-crown-5)22+ cations and isolated linear I3 anions which are arranged in alternating layers parallel to (010). The triiodide anions are located in general positions, whereas the cations are located on centres of inversion.http://scripts.iucr.org/cgi-bin/paper?nc2102 AquaN-(1-naphthyl)acetamido-Nbis2-(2-pyridyl)phenyl-2N,C1iridium(III) ethylene glycol hemisolvate- April 30, 2008 In the title compound, Ir(C11H8N)2(C12H10NO)(H2O)0.5C2H6O2, the iridium center is coordinated by two N atoms and two C atoms from two 2-(2-pyridyl)phenyl (ppy) ligands, one N atom from the N-(1-naphthyl)acetamide ligand and one water O atom, forming a distorted octahedral environment. Molecules are linked by intermolecular OH...O hydrogen bonds formed by the coordinated water molecule and the amide O atom of the N-(1-naphthyl)acetamide ligands.http://scripts.iucr.org/cgi-bin/paper?sg2232 Methyl 3,4-O-isopropylidene-2-O-(methylsulfanyl)thiocarbonyl--l-arabinoside- April 30, 2008 In the title compound, C11H18O5S2, the six- and five-membered rings adopt a chair and an approximately planar conformation, respectively.http://scripts.iucr.org/cgi-bin/paper?wk2082 N-(3-Chlorophenyl)maleimide- April 30, 2008 The title compound, C10H6ClNO2, has a dihedral angle of 46.46(5) between the benzene and maleimide rings. A short intermolecular halogenoxygen contact is observed, with a Cl...O distance of 3.0966(13). Both CO groups are involved in two CH...O interactions, which gives rise to sheets parallel to (100). In addition, these sheets exhibit a stacking interaction between the benzene and maleimide rings mean interplanar distance of 3.337(3).http://scripts.iucr.org/cgi-bin/paper?fj2114 2-(1H-1,2,3-Benzotriazol-1-yl)-1-(4-ethylbenzoyl)ethyl 2,4-dichlorobenzoate- April 30, 2008 In the title molecule, C24H19Cl2N3, the dihedral angles between the benzotriazole group and the ethyl- and dichloro-substituted benzene rings are 16.53(1) and 82.09(1), respectively. The crystal structure is stabilized by weak intermolecular CH...O interactions.http://scripts.iucr.org/cgi-bin/paper?lh2614 |