نتایج جستجو برای: triclinic crystal

تعداد نتایج: 159463  

2009
Hamdi Ben Yahia Etienne Gaudin Jacques Darriet

The new compound AgMnPO4 has been synthesized by a solid-state reaction route. Its crystal structure was determined from single-crystal X-ray diffraction data. AgMnPO4 crystallizes with triclinic symmetry, space group P1̄, a = 9.6710(6), b = 5.695(2), c = 6.629(3) Å, α = 102.55(3), β = 105.85(2), γ = 80.70(2)◦, and Z = 4. Its structure is built up fromMnO6,MnO5 and PO4 polyhedra forming tunnels ...

The synthesis and single-crystal X-ray structure determination of the title compound [(bipy) , Pb(0 ,CMe) (O ClO )] (1) and [(bipy) Pb(ClO ) ] (2) is described. Compound (I) crystallizes in the triclinic space group P1(2), a= 7.384(2), b= 12.824(3), c= 10.622(6) A, ?= 73.41(2), ?= 80.98(2), ?= 73.68(2)', Z= 2, and R =0.033 for 3408 independent reflections .Compound (2) crystallizes in the ...

2016
Agata Lazarowska Sebastian Mahlik Marek Grinberg Guogang Li Ru-Shi Liu

Spectroscopic properties of a series of (Sr0.98-xBaxEu0.02)Si2O2N2 (0 ≤ x ≤ 0.98) compounds has been studied under high hydrostatic pressure applied in a diamond anvil cell up to 200 kbar. At ambient pressure the crystal structures of (Sr0.98-xBaxEu0.02)Si2O2N2 (0 ≤ x ≤ 0.98) are related to the ratio of strontium to barium and three different phases exists: orthorhombic Pbcn(0.78 ≤ x ≤ 0.98), t...

Journal: :Zeitschrift für Kristallographie - New Crystal Structures 2007

Journal: :Journal of Research of the National Bureau of Standards 1959

Journal: :Annals of the rheumatic diseases 1995
A Swan B Heywood B Chapman H Seward P Dieppe

OBJECTIVE To investigate any relationship between the nature, size, and numbers of synovial fluid (SF) calcium pyrophosphate dihydrate (CPPD) crystals, and attacks of pseudogout. METHODS Knee SF was aspirated from nine selected patients, first during an attack of pseudogout (acute sample) and again later when the attack had subsided (interval sample). CPPD crystals were extracted, weighed, ex...

2017
Priya Antony S. John Sundaram P. Sagayaraj

Organic stilbazolium family single crystal 4-N, N-diethylamino-4-N-methyl-stilbazolium Iodide (DESI) has been successfully grown from aqueous methanol solution by adopting slow solvent evaporation technique. Single crystal X-ray diffraction analysis was carried out and it shows that DESI crystal belongs to triclinic structure with P-1 space group. The presence of hydrogen in the crystal structu...

آقابزرگ, حسین , رنجبر, مریم , مقیمی, ابولقاسم ,

The reaction between LH2, [pyda.H2][pydc], ( pyda = 2,6 –pyridinediamine and pydc. H2 = 2,6 – pyridinedicarboxylic acid),  ligand with palladium(II) chloride leads to the formation of [pyda.H]2[PdCl4]. The crystal structure of the compound was determined by X–ray diffraction. The crystal system is triclinic with space group Pī and one molecule per unit cell. The unit cell dimensions are a = 6.9...

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The reaction of gallium (III) nitrate octahydrate with the proton transfer compound (pydaH2)2+ (pydc)2– ( where  pyda  is 2,6-pyridinediamine and pydcH2 is 2,6-pyridinedicarboxylic acid) leads to the formation of (C5H8N3) [Ga(C7H3NO4)2] · 4H2O · CH3OH. The crystal system of the anionic complex is triclinic with space group Pī and two molecules per unit cell. The unit cell parameters are a=10.23...

2012
Sheyda R. Ismaylova Zhanna V. Matsulevich Galina N. Borisova Alexander V. Borisov Victor N. Khrustalev

The title compound, [SnCl₂(C₅H₄NS)₂], is the product of reaction of 2,2'-dipyridyl disulfide with tin tetra-chloride. The Sn(IV) atom adopts a distorted octa-hedral geometry, with the two bidentate pyridine-2-thiol-ate ligands forming two planar four-membered chelate rings. The two Sn-Cl, two Sn-N and two Sn-S bonds are in cis, cis and trans configurations, respectively. The crystal grown from ...

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