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...Zn2(TeO3)Br2- April 26, 2008 Single crystals of dizinc tellurium dibromide trioxide, Zn2(TeO3)Br2, were synthesized via a transport reaction in sealed evacuated silica tubes. The compound has a layered crystal structure in which the building units are ZnO4Br distorted square pyramids, ZnO2Br2 distorted tetrahedra, and TeO3E tetrahedra (E being the 5s2 lone pair of Te4+) joined through sharing of edges and corners to form layers of no net charge. Bromine atoms and tellurium lone pairs protrude from the surfaces of each...http://scripts.iucr.org/cgi-bin/paper?pk2093 2-2-(1H-indol-3-yl)ethyliminiomethyl-4-nitrophenolate- April 26, 2008 The title Schiff base, C17H15N3O3, exists in the zwitterionic form with the phenol H atom transferred to the imine group. Adjacent zwitterions are linked into a linear chain running along the a axis by an indolehydroxy NH...O hydrogen bond 3.100(2).http://scripts.iucr.org/cgi-bin/paper?bv2090 1H-Indole-3-carbaldehyde thiosemicarbazone- April 26, 2008 The molecules of the title compound, C10H10N4S, are linked by NHindole...S hydrogen bonds to form a linear hydrogen-bonded chain. There are two independent molecules in the asymmetric unit.http://scripts.iucr.org/cgi-bin/paper?rz2196 5-Bromo-1H-indole-3-carbaldehyde thiosemicarbazone- April 26, 2008 In the essentially planar title molecule, C10H9BrN4S, the C=N double bond is in a trans configuration. In the crystal structure, the S atom acts as a hydrogen-bond acceptor for the aromatic NH, aliphatic NH and terminal NH2 groups of three symmetry-related molecules, forming a weak hydrogen-bonded layer structure.http://scripts.iucr.org/cgi-bin/paper?lh2609 N-(3-Ethoxy-2-hydroxybenzylidene)-3-hydroxynaphthalene-2-carbohydrazide- April 26, 2008 In the molecule of the title compound, C20H18N2O4, the dihedral angle between the benzene ring and the naphthyl ring system is 8.5(2). In the crystal structure, molecules are linked through intermolecular OH...O hydrogen bonds, forming chains running along the b axis.http://scripts.iucr.org/cgi-bin/paper?pv2080 Poly(3-nicotinato-3O:O:N)(2-nicotinato-3O,O:N)iron(II)- April 26, 2008 In the crystal structure of the title compound, Fe(C6H4NO2)2n, one nicotinate group O,O-chelates one Fe atom and binds through the N atom to the other Fe atom; the second nicotinate group bridges three Fe atoms through the N and two O atoms. The 2- and 3-bridging modes of the two nicotinate groups result in a polymeric three-dimensional network structure. The Fe atom shows octahedral coordination geometry but one of the FeO bonds is somewhat long 2.522(2).http://scripts.iucr.org/cgi-bin/paper?xu2410 4,4-Diiodo-3,3-dimethoxybiphenyl- April 26, 2008 The molecules of the title compound, C14H12I2O2, lie on inversion centers and are linked by I...O interactions with intermolecular distances of 3.324(3). The aromatic rings display no significant intercalation or stacking interactions.http://scripts.iucr.org/cgi-bin/paper?pv2077 2-(Benzylsulfanyl)pyridine N-oxide- April 26, 2008 In the title compound, C12H11NOS, the dihedral angle between the oxopyridinium and phenyl rings is 58.40(1). The crystal structure is stabilized by CH...O hydrogen bonds, stacking interactions involving the pyridinium rings centroidcentroid distance = 3.6891(9) and CH... interactions.http://scripts.iucr.org/cgi-bin/paper?ci2583 3-Chloroquinuclidinium chloride- April 26, 2008 The cation of the title compound, C7H13ClN+Cl, forms a linear hydrogen bond to the chloride anion. The cation is disordered about a mirror plane.http://scripts.iucr.org/cgi-bin/paper?bq2068 2-1-(4-Ethoxyphenyl)-2-oxo-4-styrylazetidin-3-ylisoindoline-1,3-dione- April 26, 2008 The title compound, C27H22N2O4, contains a nearly planar four-membered -lactam ring, which makes dihedral angles of 74.64(12), 1.70(11) and 73.67(12) with the nine-membered ring system, the benzene ring and the phenyl ring, respectively. The crystal structure is stabilized by CH...O and CH... interactions and a interaction centroidcentroid distance = 3.4505(19) is also present.http://scripts.iucr.org/cgi-bin/paper?hb2715 |