The first proof of protonated anion tetrahedra in the tsumcorite-type compounds

2004 ◽  
Vol 68 (5) ◽  
pp. 757-767 ◽  
Author(s):  
T. Mihajlović ◽  
H. Effenberger
Keyword(s):  
Crystal Structure ◽  
Hydrothermal Synthesis ◽  
Single Crystal ◽  
Diffraction Data ◽  
Title Compound ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Hydrogen Atoms ◽  
Synthetic Compounds ◽  
X Ray

AbstractHydrothermal synthesis produced the new compound SrCo2(AsO4)(AsO3OH)(OH)(H2O). The compound belongs to the tsumcorite group (natural and synthetic compounds with the general formula M(1)M(2)2(XO4)2(H2O,OH)2; M(1)1+,2+,3+ = Na, K, Rb, Ag, NH4, Ca, Pb, Bi, Tl; M(2)2+,3+ = Al, Mn3+, Fe3+, Co, Ni, Cu, Zn; and X5+,6+ = P, As, V, S, Se, Mo). It represents (1) the first Sr member, (2) the until now unknown [7]-coordination for the M(1) position, (3) the first proof of (partially) protonated arsenate groups in this group of compounds, and (4) a new structure variant.The crystal structure of the title compound was determined using single-crystal X-ray diffraction data. The compound is monoclinic, space group P21/a, with a = 9.139(2), b = 12.829(3), c = 7.522(2) Å, β = 114.33(3)°, V = 803.6(3) Å3, Z = 4 [wR2 = 0.065 for 3530 unique reflections]. The hydrogen atoms were located experimentally.

Darstellung und Kristallstruktur von (PPh3)3Ag2WS4, einem neuartigen Dreikern-Komplex mit tetraedrisch und trigonal planar koordinierten Ag-Atomen / Preparation and Crystal Structure of (PPh3)3Ag2WS4, a Novel Trinuclear Complex with Tetrahedral and Trigonal Planar Coordination of the Ag Atoms

1979 ◽  
Vol 34 (12) ◽  
pp. 1698-1702 ◽  
Author(s):  
Achim Müller ◽  
Hartmut Bögge ◽  
Elisabeth Königer-Ahlborn
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Diffraction Data ◽  
Title Compound ◽  
Water System ◽  
Trinuclear Complex ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
X Ray ◽  
Silver Atoms

The title compound was prepared by reaction of AgNO3, P(C6H5)3 and (NH4)2WS4 in a dichloromethane/water system. The crystal structure was determined from single crystal X-ray diffraction data (monoclinic, space group P21/c, with a = 1811,1(2), b = 1735.6(2), c = 1779,7(2) pm, β = 95,02(1)°, V = 5572,7 · 106 pm3, Z = 4). The compound contains a tetradentate WS42- ligand and two silver atoms, having a tetrahedral and trigonal planar coordination.

Crystal structure of 2,3-Dichloro-5,8-dihydroxynaphtho-1,4-quinone

1978 ◽  
Vol 31 (3) ◽  
pp. 555 ◽  
Author(s):  
GI Feutrill ◽  
CL Raston ◽  
AH White
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Least Squares ◽  
Benzene Ring ◽  
Title Compound ◽  
X Ray Diffraction ◽  
Hydrogen Atoms ◽  
X Ray ◽  
The One ◽  
Least Squares Techniques

The crystal structure of the title compound has been determined at 295 K by single-crystal X-ray diffraction methods and refined by least- squares techniques to a residual of 0.049 for 1046 'observed' reflections. Crystals are monoclinic, P21/c, a 11.584(6), b 5.449(7), c 15.273(8) Ǻ, β 92.44(4)°, Z4. The pair of quinol hydrogen atoms are both located on the one benzene ring as the title indicates.

Crystal structure of Tris(ethane-1,2-diamine)nickel(II) diperchlorate monohydrate

1978 ◽  
Vol 31 (2) ◽  
pp. 415 ◽  
Author(s):  
CL Raston ◽  
AH White ◽  
AC Willis
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Least Squares ◽  
Diffraction Data ◽  
Structure Determination ◽  
Title Compound ◽  
Thermal Motion ◽  
X Ray Diffraction ◽  
X Ray ◽  
Very High

The crystal structure of the title compound, [Ni(en)3] (ClO4)2,H2O, has been determined from single-crystal X-ray diffraction data at 295(1) K and refined by least squares to a residual of 0.093 for 1400 'observed' reflections. Crystals are orthorhombic, P bca, a 17.043(7), b 15.922(6), c 13.496(5) Ǻ, Z 8. The precision of the structure determination is adversely affected by very high perchlorate thermal motion. <Ni-N> is 2.13 Ǻ.

scholarly journals Synthesis and Crystal Structure ofN-Dichloroacetyl-3,4-dihydro-3-methyl-6-chloro-2H-1,4-benzoxazine

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Shuang Gao ◽  
Hai-Tao Qu ◽  
Fei Ye ◽  
Ying Fu
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Title Compound ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
X Ray ◽  
Compound C

A new compound,N-dichloroacetyl-3,4-dihydro-3-methyl-6-chloro-2H-1,4-benzoxazine, was synthesized and characterized. The crystal structure of the title compound (C11H10Cl3NO2,Mr=294.55) has been determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space groupP21/c, witha=6.7619(14),b=24.866(5),c=9.737(3) Å,α=90.00,β=130.982(18),γ=90.00°,V=1235.9(5) Å3,Z=4,Dx=1.583 Mg/cm3,λ(Mo  Ka)=0.71073 Å,F(000)=600,μ=0.729 mm−1,R=0.0476, andwR=0.1274for 2217 reflections withI>2σ(I).

Schwermetall-π-Komplexe II [1] Arenkomplexe des Quecksilbers(I)

1987 ◽  
Vol 42 (7) ◽  
pp. 828-834 ◽  
Author(s):  
W. Frank ◽  
B. Dincher
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Diffraction Data ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Aluminium Trichloride

Abstract The crystalline compounds [(CH3C6H5)2Hg,][AlCl4]2 (1), [(1,2-(CH3)2C6H4)2Hg2][AlCl4]2(2), [(1,3,5-(CH3)3C6H3)2Hg2][AlCl4]2 (3), [1,2,4,5-(CH3)4C6H2Hg2][AlCl4]2 (4) and [((CH3)6C6)2Hg2][AlCl4]2-CH3C6H5 (5) have been prepared from mercury(I)chloride, aluminium trichloride and the corresponding arenes and characterized by elem ental analysis. The crystal structure of 5 has been determ ined from single crystal X-ray diffraction data and refined to R - 0.093 for 3269 unique reflections. Crystal data: monoclinic, space group P21/c, a = 2116(1), b = 1095.1(7), c = 1880(1) pm, β - 104,9(1)°, Z = 4. Each atom of a central Hg2 unit (Hg -Hg distance 251.5 pm) is asymmetrically complexed by hexamethylbenzene, the Hg - Carene distances being in the range from 241 to 340 pm. Two distorted AlCl4 tetrahedra complete a “molecular” [arene2Hg2][AlCl4]2 unit. The shortest Hg-Cl distances are 310 and 312 pm, respectively.

Crystal growth, crystal structure, optical, electro-optic and electrostrictive properties of the orthorhombic tartrato-antimonate(III) nitrate KZn[Sb2{(+)-C4H2O6}2]NO3 · 5 H2O (“KZnSbTN”)

1994 ◽  
Vol 209 (1) ◽  
Author(s):  
L. Bohatý ◽  
R. Fröhlich
Keyword(s):  
Crystal Structure ◽  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystals ◽  
Diffraction Data ◽  
Title Compound ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electro Optic ◽  
Electrostrictive Properties

AbstractKZnSbTN is an example from the large acentric double salt-like family of tartrato-antimonates. Its crystal structure was determined from single-crystal X-ray diffraction data (orthorhombic,Single crystals of the title compound of up to 4×4×6 cm

RE2B8O15 (RE = La, Pr, Nd) – syntheses of three new rare earth borates isotypic to Ce2B8O15

2016 ◽  
Vol 71 (5) ◽  
pp. 535-542 ◽  
Author(s):  
Matthias Glätzle ◽  
Gregor J. Hoerder ◽  
Hubert Huppertz
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Single Crystal ◽  
Infrared Spectra ◽  
Diffraction Data ◽  
Boron Oxide ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
X Ray ◽  
New Compounds

AbstractThe rare earth borates RE2B8O15 (RE = La, Pr, Nd) were synthesized in a Walker-type multianvil apparatus under conditions of 5.5 GPa and 1100 °C. Starting from the corresponding rare earth oxides and boron oxide, the syntheses yielded crystalline products of all new compounds that allowed crystal structure analyses based on single-crystal X-ray diffraction data for La2B8O15 and Nd2B8O15. The compound Pr2B8O15 could be characterized via X-ray powder diffractometry. The results show that the new compounds crystallize isotypically to Ce2B8O15 in the monoclinic space group P2/c. The infrared spectra of RE2B8O15 (RE = La, Pr, Nd) have also been studied.

Crystal structure of dicadmium(II) ethylenediphosphinetetraacetate octahydrate

1991 ◽  
Vol 56 (7) ◽  
pp. 1454-1460 ◽  
Author(s):  
Jaroslav Podlaha ◽  
Jana Podlahová
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Single Crystal ◽  
Diffraction Data ◽  
Title Compound ◽  
Water Molecules ◽  
X Ray Diffraction ◽  
Coordination Polyhedra ◽  
X Ray ◽  
Carboxylate Groups

The crystal structure of the title compound containing a phosphorus analogue of EDTA as the ligand was determined from single-crystal X-ray diffraction data and refined to R = 0.028 for 1 920 observed reflections. The crystals are monocyclic, space group P21/c,a = 8.6169(8), b = 16.0539(9), c = 8.2504(6)Å, β = 103.458(7)° and Z = 2. The structure is completely different from that of the nitrogen prototype, [CdEDTA]2-. It consists of double-stranded polymeric layers which are composed of metal coordination polyhedra linked by μ6-hexadentate ligands; the layers lie parallel to the bc plane and are joined along the a axis through hydrogen bonding donated by water molecules. Because of steric requirements of phosphorus, the coordination polyhedron around Cd is greatly distorted and can best be described as a 5 + 3 type. One P atom, two oxygen atoms from two monodentate carboxylate groups and two water molecules form an approximate trigonal bipyramid and further three more remote carboxylate oxygens complete the arrangement, resulting in an O7P distorted bicapped trigonal prism.

Crystal structure of a vivianite-type mineral: Mg-rich erythrite, (Co2.16Ni0.24Mg0.60)(AsO4)2 · 8 H2O

2007 ◽  
Vol 222 (12/2007) ◽  
Author(s):  
Francesco Capitelli ◽  
Mohamed Elaatmani ◽  
My Driss Lalaoui ◽  
Juan F. Piniella
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Diffraction Data ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray

The crystal structure of erythrite from Bouzaer, south Morocco, was refined through single crystal X-ray diffraction data, within monoclinic space group

Crystal structure of 3-Oxo-2-phenyl-3H-pyrazolo[1,2-a]pyrazol-4-io-1-olate

1984 ◽  
Vol 37 (12) ◽  
pp. 2577 ◽  
Author(s):  
CL Raston ◽  
AH White
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Least Squares ◽  
Title Compound ◽  
X Ray Diffraction ◽  
Hydrogen Atoms ◽  
X Ray ◽  
Molecular Skeleton

The crystal structure of the title compound, C12H8N2O2, has been determined by single crystal X-ray diffraction methods at 295 K and refined by least-squares methods to a conventional residual of 0.050 for 1208 independent 'observed' reflections. Crystals are monoclinic, P21/a, a 14.375(10), b 6.330(8), c 10.780(8) �, β 102.52(6)�, Z = 4. The molecular skeleton is substantially planar (σ(non-hydrogen atoms), 0.07 �) with a delocalization pattern representative of a betaine comprising a pyrazolinium cation and a delocalized ,β-diketone rather than an 8 π-electron delocalized system.

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