نتایج جستجو برای: sodium tetra

تعداد نتایج: 196184  

2010
Iuliia O. Shatrava Tatyana Yu. Sliva Vladimir A. Ovchynnikov Irina S. Konovalova Vladimir M. Amirkhanov

The cubic crystal structure of the title compound, [NaNd(C(14)H(21)N(3)O(5)PS)(4)](n), is composed of one-dimensional polymeric chains propagating in [100], built up from [Nd(C(14)H(21)N(3)O(5)PS)(4)](-) anions and sodium cations functioning as linkers. In the complex anion, the Nd(3+) ion has an eightfold coordination environment formed by the sulfonyl and phosphoryl O atoms of four bidentate ...

2011
Bianca Barreto Martins Leandro Bresolin Vanessa Santana Carratu Mariana Boneberger Behm Adriano Bof de Oliveira

The reaction of hydroxyl-amine hydro-chloride with isatin in ethanol, catalysed with HCl and neutralized with Na(2)CO(3), yielded the one-dimensional coordination polymer, catena-poly[[[aqua-sodium]-di-μ-aqua-[aqua-sodium]-bis-(μ-2-oxoindoline-2,3-dione 3-oximato)] tetra-kis-(oxoindoline-2,3-dione 3-oxime)], {[Na(C(8)H(5)N(2)O(2))(H(2)O)(2)]·2C(8)H(6)N(2)O(2)}(n). The Na(I) atom has a six-coord...

Journal: : 2023

This study includs the synthesis of some new Amic acid and Imides,starting from esters [S1] Terephthalic which then converted toits hydrazide [S2] to amic derivatives [S3-S7] finally withimides [S8-S12]. Preparing ester by usual esterification ofterephthalic with absolute ethanol in acidic medium, hasconverted its reacting it hydrazine hydrate. Theamic have been synthesized reaction ofhydrazide...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2006
Robert M Q Shanks Jennifer L Sargent Raquel M Martinez Martha L Graber George A O'Toole

BACKGROUND Microbial biofilms form on central venous catheters and may be associated with systemic infections as well as decreased dialysis efficiency due to catheter thrombosis. The most widely used anticoagulant catheter lock solution in the US is sodium heparin. We have previously shown that sodium heparin in clinically relevant concentrations enhances Staphylococcus aureus biofilm formation...

2015
Joel T. Mague Shaaban K. Mohamed Mehmet Akkurt Ahmed M. M. El-Saghier Mustafa R. Albayati

In the title compound, [Na(C10H5ClN5)(H2O)2] n , infinite chains of [Na(H2O)2](+) cations having a diamond-shaped cross-section and running parallel to the b axis are formed. O-H⋯N hydrogen bonds to the anions generate layers parallel to (100) which have the chloro-benzene-cyano-ethenyl substituents protruding from both surfaces. The sodium ion makes a short contact of 2.4801 (13) Å with the N ...

2010
Shi-Zhu Liu

The title polymeric compound, [Zn(C(8)H(5)Cl(2)O(3))(2)](n), was prepared by reaction of zinc(II) chloride with 2,4-dichloro-phenoxy-acetic acid and sodium hydroxide under hydro-thermal conditions. The Zn(II) atom is coordinated in a distorted tetra-hedral environment by four O atoms from four 2,4-dichloro-phenoxy-acetate ligands. Each ligand bridges two Zn(II) atoms, forming a polymeric chain ...

2012
Meryem Moutataouia Mohammed Lamire Mohamed Saadi Lahcen El Ammari

The structure of the title compound, K(2)Na(3)P(3)O(10), is characterized by open chains of three PO(4) tetra-hedra linked by single oxygen bridges. The P(3)O(10) groups have crystallographic twofold symmetry, with the central P atom being located on the twofold rotation axis. One of the sodium ions lies on a centre of inversion, whereas all the remaining atoms are in general positions. The str...

Journal: :The Biochemical journal 1984
R H Ashley M J Brammer R Marchbanks

The recently synthesized calcium indicator quin -2 was incorporated into synaptosomes from guinea-pig cerebral cortex following uptake and internal hydrolysis of quin -2 tetra-acetoxymethyl ester. Incubation in physiological media containing 1 mM- or 2 mM-CaCl2 led to equilibrium cytosolic ionized calcium concentrations of 85 +/- 10 nM and 205 +/- 5 nM respectively (mean +/- S.E.M. from eight a...

2009
Chengjuan Li Da-Cheng Li Da-Qi Wang

The title complex, [Na(C(18)H(22)O(5))(H(2)O)](2)[Co(NCS)(4)], consists of two aqua-(2,3-naphtho-15-crown-5)sodium complex cations and one [Co(NCS)(4)](2-) complex anion, which has crystallographic symmetry. In the anion, the Co(II) centre is coordinated by the N atoms of four NCS(-) ligands in a distorted tetra-hedral geometry. In the complex cations, the Na(I) centre is coordinated by five O ...

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