Ca3ZnGeO2[Ge4O12]: a Ca–Zn germanate related to the mineral taikanite

2015 ◽  
Vol 71 (1) ◽  
pp. 80-83 ◽  
Author(s):  
Günther J. Redhammer
Keyword(s):  
Title Compound ◽  
Germanium Dioxide ◽  
Type Structure ◽  
Zigzag Chain ◽  
Chain Geometry ◽  
A Chain ◽  
Silicate Chain

The title compound, Ca3ZnGeO2[Ge4O12] (tricalcium zinc germanium dioxide dodecaoxidotetragermanate), adopts a taikanite-type structure. The tetrahedral [Ge4O12] chain geometry is very similar to that of the silicate chain of taikanite,i.e.BaSr2Mn3+2O2[Si4O12], while the major difference is found parallel to thecaxis. In taikanite, Mn3+octahedra form an infinite zigzag chain, whereas the title compound has a chain of distorted ZnO6octahedra, which alternates with distorted GeO4tetrahedra connected to each otherviatwo common edges. Eightfold-coordinated Ca2+polyhedra and ZnO6octahedra form a slab parallel to (001) which alternates with another slab containing the tetrahedrally coordinated Ge sites along thecaxis.

scholarly journals Crystal structure of strontium dicobalt iron(III) tris(orthophosphate): SrCo2Fe(PO4)3

2016 ◽  
Vol 72 (8) ◽  
pp. 1143-1146 ◽  
Author(s):  
Adam Bouraima ◽  
Thomas Makani ◽  
Abderrazzak Assani ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Solid State Reaction ◽  
Title Compound ◽  
Three Dimensional ◽  
Type Structure ◽  
Zigzag Chain ◽  
Common Edge ◽  
Linear Chains ◽  
Dimensional Network

The title compound, SrCo2Fe(PO4)3, has been synthesized by a solid-state reaction. It crystallizes with the α-CrPO4type structure. In this structure, all atoms are on special positions of theImmaspace group, except for two O atoms which are located on general positions. The three-dimensional network in the crystal structure is made up of two types of layers stacked normal to (100). The first layer is built from two edge-sharing CoO6octahedra, leading to the formation of Co2O10dimers that are connected to two PO4tetrahedra by a common edge and corners. The second layer results from apex-sharing FeO6octahedra and PO4tetrahedra, which form linear chains alternating with a zigzag chain of SrIIcations. These layers are linked together by common vertices of PO4tetrahedra and FeO6octahedra to form an open three-dimensional framework that delimits two types of channels parallel to [100] and [010] where the SrIIcations are located. Each SrIIcation is surrounded by eight O atoms.

Verfeinerung der Kristallstruktur von Tripalladium-di-tetrathiophospliat Pd3(PS4)2 Refinement of the Crystal Structure of Tripalladium-di-tetrathiophosphate Pda3(PS4)2

1983 ◽  
Vol 38 (4) ◽  
pp. 426-427 ◽  
Author(s):  
Arndt Simon ◽  
Karl Peters ◽  
Harry Hahn
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Title Compound ◽  
Type Structure ◽  
Tetrahedral Symmetry ◽  
X Ray ◽  
X Ray Crystallography ◽  
Planar Environment

Abstract The structure of the title compound has been determined by X-ray crystallography. The title compound is synthesized from the elements at 600 °C. Its crystal structure, derived from powder data [3] is refined by single crystal diffractometer data. The structure is trigonal (P3̅ml, α = 684.1(1), c = 724.4(1) pm); Pd2+ cations and PS43- anions form a network with an anti-Claudetite (AS2O3) type structure. The PS4 units are distinctly distorted from ideal tetrahedral symmetry. The Pd atoms have a planar environment of 4 S atoms.

scholarly journals trans-Dichloridobis(4-methoxyaniline-κN)palladium(II)

2009 ◽  
Vol 65 (6) ◽  
pp. m673-m673 ◽  
Author(s):  
Volodimir Bon ◽  
Svitlana Orysyk ◽  
Vasyl Pekhnyo
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Planar Geometry ◽  
Coordination Environment ◽  
Square Planar ◽  
A Chain

In the title compound, [PdCl2(C7H9NO)2], the Pd atom is situated on a crystallographic centre of inversion. The coordination environment of the Pd atom shows a slightly distorted square-planar geometry. The crystal structure exhibits weak intermolecular Pd...Cl interactions, with Pd...Cl distances of 3.6912 (6) Å. A chain-like arrangement of molecules realized by intermolecular N—H...Cl hydrogen bonds is observed along [010].

N′-(2-Hydroxybenzoyl)-2-oxo-2H-chromene-3-carbohydrazide

2006 ◽  
Vol 62 (5) ◽  
pp. o2097-o2098 ◽  
Author(s):  
Yan Zhan ◽  
Shu-Kun Lin
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Compound C ◽  
A Chain

The coumarin system and the 2-hydroxybenzoyl group in the title compound, C17H12N2O5, are approximately coplanar. There are some intermolecular O—H...O hydrogen bonds and intramolecular N—H...O hydrogen bonds; the intermolecular O—H...O hydrogen bonds result in a chain along the a axis.

scholarly journals Synthesis and crystal structures of a bis(3-hydroxy-cyclohex-2-en-1-one) and two hexahydroquinoline derivatives

2020 ◽  
Vol 76 (2) ◽  
pp. 125-131
Author(s):  
Scott A. Steiger ◽  
Chun Li ◽  
Christina Gates ◽  
Nicholas R. Natale
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Structural Features ◽  
Boat Conformation ◽  
Two Dimensional ◽  
Aryl Group ◽  
Dimensional Network ◽  
A Chain ◽  
Intramolecular Hydrogen

The title compound I, 2,2′-[(2-nitrophenyl)methylene]bis(3-hydroxy-5,5-dimethylcyclohex-2-enone), C23H27NO6, features a 1,3-ketone–enol conformation which is stabilized by two intramolecular hydrogen bonds. The most prominent intermolecular interactions in compound I are C—H...O hydrogen bonds, which link molecules into a two-dimensional network parallel to the (001) plane and a chain perpendicular to (1\overline{1}1). Both title compounds II, ethyl 4-(4-hydroxy-3,5-dimethoxyphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C23H29NO6, and III, ethyl 4-(anthracen-9-yl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C29H29NO3, share the same structural features, such as a shallow boat conformation of the dihydropyridine group and an orthogonal aryl group attached to the dihydropyridine. Intermolecular N—H...O bonding is present in the crystal packing of both compound II and III.

scholarly journals (E)-2-Methyl-6-{[(5-methylpyridin-2-yl)imino]methyl}phenol

IUCrData ◽  
2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Md. Azharul Arafath ◽  
Farook Adam ◽  
Mohd. R. Razali
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Zigzag Chain ◽  
Aromatic Rings ◽  
Methyl Group ◽  
Compound C

In the title compound, C14H14N2O, the dihedral angle between the aromatic rings is 5.54 (9)°. The conformation is reinforced by an intramolecular O—H...N hydrogen bond, which closes anS(6) ring. The pyridine N atom and methyl group lie to opposite sides of the molecule. In the crystal, the molecules are linked into a zigzag chain propagating in [0-11] by weak C—H...O hydrogen bonds.

catena-Poly[[triaquazinc(II)]-μ-5-hydroxyisophthalato-κ2 O:O′]

2006 ◽  
Vol 62 (4) ◽  
pp. m731-m733 ◽  
Author(s):  
Hong-Ping Xiao
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Coordination Mode ◽  
Three Dimensional ◽  
Zigzag Chain ◽  
Intermolecular Hydrogen Bonds ◽  
Carboxylate Groups ◽  
Dimensional Network

In the title compound, [Zn(C8H4O5)(H2O)3] n , the ZnII atom is in a five-coordinated environment defined by three aqua O atoms and two carboxylate O atoms from two different 5-hydroxyisophthalate dianions. In the 5-hydroxyisophthalate dianions, two carboxylate groups coordinate two ZnII cations in a bidentate bridging coordination mode, forming a zigzag chain. In addition, O—H...O intermolecular hydrogen bonds link the chains into a three-dimensional network.

scholarly journals Crystal structure of tetraethyl 27,30-dioxo-7,12,20,25-tetra-tert-butyl-3,16-dioxa-9,22,28,31-tetrathiaheptacyclo[21.3.1.11,5.14,8.110,14.114,18.117,21]dotriaconta-4,6,8(29),10,12,17,19,21(32),23,25-decaene-2,2,15,15-tetracarboxylate

2015 ◽  
Vol 71 (10) ◽  
pp. o778-o779
Author(s):  
Mehmet Akkurt ◽  
Jerry P. Jasinski ◽  
Shaaban K. Mohamed ◽  
Omran A. Omran ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Membered Ring ◽  
Asymmetric Unit ◽  
Axis Direction ◽  
Tert Butyl ◽  
Envelope Conformation ◽  
Compound C ◽  
A Chain

The asymmetric unit of the title compound, C54H64O12S4, consists of one half of the molecule, which is located on an inversion centre. The heterocyclic six-membered ring adopts a distorted envelope conformation with the spiro C atom as the flap. In the crystal, molecules are linked by weak C—H...O hydrogen bonds with anR22(14) motif, forming a chain along theb-axis direction.

1-(2-Chlorobenzyl)-2-methylpyridinium bis(maleonitriledithiolato)nickelate(III)

2006 ◽  
Vol 62 (4) ◽  
pp. m936-m938
Author(s):  
Chun-Lin Ni ◽  
Ming-Guo Liu
Keyword(s):  
Title Compound ◽  
Zigzag Chain ◽  
Coordination Geometry ◽  
Ionic Complex ◽  
One Dimensional ◽  
Π Interactions ◽  
Square Planar

The title compound is a new ionic complex, (C13H13ClN)[Ni(C4N2S2)2] or [ClBzPyMe][Ni(mnt)2] [where ClBzPyMe is 1-(2-chlorobenzyl)-2-methylpyridinium and mnt is maleonitriledithiolate]. In the anion the NiIII atom is coordinated by the four S atoms of two mnt2− ligands and exhibits the expected square-planar coordination geometry. In the [ClBzPyMe]+ cation the benzene and pyridine rings are twisted with respect to the C/C/N plane incorporating the methylene C atom that links them. The [Ni(mnt)2]− anions and [ClBzPyMe]+ cations stack into well segregated columns along the a axis, and the NiIII ions form a one-dimensional zigzag chain through weak Ni...S, S...S, and π–π interactions.

scholarly journals 2-Bromo-1-(1-phenylsulfonyl-1H-indol-3-yl)propan-1-one

2014 ◽  
Vol 70 (3) ◽  
pp. o295-o296
Author(s):  
C. Ramathilagam ◽  
P. R. Umarani ◽  
V. Saravanan ◽  
A. K. Mohanakrishnan ◽  
B. Gunasekaran ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Ring System ◽  
Indole Ring ◽  
Methyl Group ◽  
Π Interactions ◽  
Compound C ◽  
A Chain

In the title compound, C17H14BrNO3S, the phenyl ring makes a dihedral angle of 89.78 (16)° with the plane of the indole ring system. The terminal Br atom and the methyl group are disordered over two sets of sites, with site occupancies of 0.860 (2) and 0.140 (2). In the crystal, molecules are linked into a chain along theb-axis direction by weak C—H...O hydrogen bonds. The chains are further linked by C—H...π interactions, forming layers parallel to thebcplane.

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