Synthesis and Characterization of a New Copper(II) Complex with Nadolol, an Aminoalcoholic Beta-blocker. Crystal Structure of Na[Cu(nadololate)(CO3)] · H2O

2008 ◽  
Vol 63 (5) ◽  
pp. 543-547 ◽  
Author(s):  
Inés Viera ◽  
Laura Domínguez ◽  
Javier Ellena ◽  
María H. Torre
Keyword(s):  
Crystal Structure ◽  
Vibrational Spectroscopy ◽  
Copper Complex ◽  
Beta Blocker ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Spectroscopy Analysis ◽  
X Ray

This work reports the synthesis and characterization of a new copper complex with nadolol, a betablocker aminoalcohol. The stoichiometry found was Na[Cu(nadololate)(CO3)] · H2O. Electronic and vibrational spectroscopy analysis was performed, and the crystal structure of Na[Cu(nadololate)-(CO3)] · H2O was determined by X-ray diffraction.

Synthesis and Characterization of Co Nanoparticles by Solventless Thermal Decomposition

2007 ◽  
Vol 119 ◽  
pp. 71-74 ◽  
Author(s):  
Yan Li ◽  
Xiao Li Zhang ◽  
Young Hwan Kim ◽  
Young Soo Kang
Keyword(s):  
Crystal Structure ◽  
Thermal Decomposition ◽  
Synthesis And Characterization ◽  
Vibrating Sample Magnetometer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Structure Of Nanoparticles ◽  
Co Nanoparticles

Co nanoparticles were synthesized via a solventless thermal decomposition of Co2+-oleate2. The crystalline structure is strongly affected by the thermal treatment of the Co nanoparticles. Further, the annealing also results in the decomposition of surfactant around Co particles. The size of nanoparticles was confirmed by transmission electron microscopy (TEM). The crystal structure of nanoparticles was characterized by X-ray diffraction pattern (XRD). The magnetic properties were characterized by vibrating sample magnetometer (VSM).

Synthesis and Characterization of ALaFeNi0.5W0.5O6 (A= Sr or Ca), a New Structure Distorted Double Perovskite

2013 ◽  
Vol 717 ◽  
pp. 133-138
Author(s):  
A. Awad Allah ◽  
M. Elhadi ◽  
O.A. Yassien
Keyword(s):  
Crystal Structure ◽  
Diffraction Data ◽  
Double Perovskite ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Absorption Bands ◽  
X Ray ◽  
Perovskite Materials ◽  
Ftir Spectrometer

The crystal structure of both samples has been solved by powder X-ray diffraction, data in the tetragonal space group I4/m (a= b= 5.55182 Å, c =7.86955 A0) for SrLaFeNi0.5W0.5O6sample and (a=b= 5.49129Å, c= 7.82233Å) for CaLaFeNi0.5W0.5O6 sample, and shows an almost perfect ordering between Ni2+ and W5+ cations at the B-site of the perovskite structure. The FTIR spectrometer used of the powders showed that the spectra of both are very similar, showing two strong and well-defined absorption bands, typical of perovskite materials.

Oxazoline chemistry — Part IV: Synthesis and characterization of oxazoline complexes of the zinc halides

2003 ◽  
Vol 81 (12) ◽  
pp. 1482-1491 ◽  
Author(s):  
Tosha M Barclay ◽  
Ignacio del Río ◽  
Robert A Gossage ◽  
Sarah M Jackson
Keyword(s):  
Crystal Structure ◽  
Structural Diversity ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Metal Centre ◽  
Zinc Compounds ◽  
X Ray ◽  
H Nmr ◽  
Oxazoline Ligands

The synthesis and characterization of 11 zinc halide derivatives that contain monodentate oxazoline ligands is described. The treatment of ether solutions of [ZnX2] (X = Cl, Br, I) with 2-aryl- or 2-methyl-2-oxazolines results in the formation of mildly hygroscopic complexes of the general formulae [ZnX2(ox)2] (ox = 2-methyl-2-oxazoline (1), 2,4,4-trimethyl-2-oxazoline (2), 2-phenyl-2-oxazoline (3), or 4,4-dimethyl-2-phenyl-2-oxazoline (4)), except in the case of ZnI2, which does not form an isolable complex — likely for steric reasons — with oxazoline 4. Treatment of [ZnBr2(4)2] with 1 reveals (1H NMR) that 1 only sluggishly displaces coordinated 4 at temperatures below 50 °C. The structural characterization, via single crystal X-ray diffraction, of six of the complexes, viz. [ZnI2(1)2], [ZnI2(2)2], [ZnX2(3)2] (X = Cl, Br, or I), and [ZnBr2(4)2], is also reported. All of these structurally characterized complexes are mononuclear zinc compounds with an overall distorted tetrahedral arrangement of the two halide and two oxazoline ligands around the zinc metal centre. The oxazoline series of complexes reported herein show little structural diversity, a facet which is in contrast to their substituted pyridine analogues.Key words: oxazoline, zinc, X-ray crystal structure, coordination complex, NMR spectroscopy, Zn(II).

Synthesis and characterization of a macrocyclic copper complex containing the 14-membered 1,3,5,8,10,12-hexaazacyclotetradecane unit

2017 ◽  
Vol 72 (2) ◽  
pp. 115-118 ◽  
Author(s):  
Mohammad Hakimi ◽  
Zahra Mardani ◽  
Keyvan Moeini ◽  
Fabian Mohr
Keyword(s):  
Raman Spectroscopy ◽  
Elemental Analysis ◽  
Copper Complex ◽  
Copper Atom ◽  
Octahedral Geometry ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ft Ir

AbstractIn this work, a new macrocyclic copper complex, [Cu(ACE)(SCN)2]; ACE: 1,3,6,10,12,15-hexaazatricyclo[13.3.1.16,10]eicosane, was prepared and characterized by elemental analysis, FT-IR, Raman spectroscopy and single-crystal X-ray diffraction. X-ray analysis of [Cu(ACE)(SCN)2] reveals an elongated octahedral geometry around the copper atom in a centrosymmetric CuN6 environment.

Synthesis and characterization of a hexaphyrin(1.0.1.0.0.0) bearing both meso- and β-substituents

2007 ◽  
Vol 11 (04) ◽  
pp. 287-293 ◽  
Author(s):  
Jonathan L. Sessler ◽  
Patricia J. Melfi ◽  
Vincent M. Lynch
Keyword(s):  
Crystal Structure ◽  
Ring Current ◽  
Spectroscopic Studies ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
H Nmr ◽  
Planar Conformation ◽  
Hydrogen Bound

The synthesis of an isoamethyrin-type expanded porphyrin bearing both meso- and β-substituents is presented. The diprotonated form of this macrocycle was characterized by conventional spectroscopic means and via a single crystal X-ray diffraction analysis. This species is observed to adopt a planar conformation in the solid state. Nonetheless, the inner ring current, as inferred from 1 H NMR spectroscopic studies, is found to be severely diminished as compared to isoamethyrin, by the presence of the two meso-phenyl moieties. A second crystal structure, in which a molecule of water is hydrogen-bound to a pyrrole NH , was also solved.

Synthesis and Characterization of a Cubic Iron Hydroxy Boracite

2011 ◽  
Vol 66 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Stephanie C. Neumair ◽  
Johanna S. Knyrim ◽  
Oliver Oeckler ◽  
Reinhard Kaindl ◽  
Hubert Huppertz
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
High Temperature ◽  
Single Crystals ◽  
Room Temperature ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Pressure High Temperature

The cubic iron hydroxy boracite Fe3B7O13OH・1.5H2O was synthesized from Fe2O3 and B2O3 under high-pressure/high-temperature conditions of 3 GPa and 960 °C in a modified Walker-type multianvil apparatus. The crystal structure was determined at room temperature by X-ray diffraction on single crystals. It crystallizes in the cubic space group F4̄3c (Z = 8) with the parameters a = 1222.4(2) pm, V = 1.826(4) nm3, R1 = 0.0362, and wR2 = 0.0726 (all data). The B-O network is similar to that of other cubic boracites.

Notizen: Synthesis and Characterization of Nadorite: PbSbO2Cl

2002 ◽  
Vol 57 (3) ◽  
pp. 360-362 ◽  
Author(s):  
Yetta Porter ◽  
P. Shiv Halasyamani
Keyword(s):  
Crystal Structure ◽  
Diffraction Data ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Thermogravimetric Data

AbstractThe first labortory synthesis and characterization of the mineral Nadorite, PbSbO2Cl, is reported. The material was synthesized by combining PbCl2, PbO and Sb2O3. Powder X-ray diffraction data on the polycrystalline product is consistent with the previously reported crystal structure on the mineral. Infrared and thermogravimetric data are also present.

scholarly journals Activity of Pt(II) and Ru(III) Triazolopyrimidine Complexes Against Parasites of the Genus Leishmania, Trypanosomas and Phytomonas

2001 ◽  
Vol 8 (3) ◽  
pp. 119-124 ◽  
Author(s):  
Juan M. Salas ◽  
Miguel Quirós ◽  
Mohammad Abul Haj ◽  
Rosa Magán ◽  
Clotilde Marín ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Synthesis And Characterization ◽  
In Vitro Activity ◽  
X Ray Diffraction ◽  
Procyclic Form ◽  
X Ray ◽  
Promastigote Form ◽  
Genus Leishmania

The synthesis and characterization of two Pt(II) Complexes with the isomeric ligands 4,5-dihydro-5-oxo- [1,2,4]triazolo-[ 1,5-a]pyrimidine (5HtpO) and 4,7-dihydro-7-oxo-[ 1,2,4]-triazolo-[ 1,5-a]pyrimidine (7HtpO) are described, as well as a Ru(III) complex with 7HtpO. The crystal structure of cis-[PtCl2(7HtpO)2].2H2O has been solved by X-ray diffraction analysis. In vitro activity of the new isolated complexes against the epimastigote form of T. cruzi, procyclic form of T. b. brucei and promastigote form of L. donnovani and P. characias has also been studied. The three complexes markedly affect the growth of the parasites and none of them shows cytotoxicity against macrophage of the J774.2 line at the heaviest dosages used.

Synthesis and characterization of a spirocyclic phosphaverdazyl radical - cyclophosphazene hybrid: Evidence for spin transfer from a verdazyl radical to a phosphazene ring

2002 ◽  
Vol 80 (11) ◽  
pp. 1501-1506 ◽  
Author(s):  
Tosha M Barclay ◽  
Robin G Hicks ◽  
Andrew S Ichimura ◽  
Greg W Patenaude
Keyword(s):  
Hyperfine Coupling ◽  
Spin Transfer ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Spectroscopy Analysis ◽  
X Ray ◽  
Verdazyl Radical ◽  
Endor Spectroscopy ◽  
Stable Radicals

The synthesis and characterization of a new 6-phosphaverdazyl radical incorporated into a spirocyclic framework containing a cyclotriphosphazene ring is described. Reaction of 1,1,3,3-bis[spiro-2',2''-dioxy-1',1''-biphenyl]-5,5-bis(1-methylhydrazido)-1,3,5,2,4,6-cyclotriphosphazene (7) with trimethylorthobenzoate yielded 6-[2,2,4,4-bis(2,2'-dioxy-1,1'-biphenyl)-2,4,6,1,3,5-cyclotriphosphazen-6-yl]-1,2,5,6-tetrahydro-1,5-dimethyl-3-phenyl-1,2,4,5,6-tetrazaphosphorine (8), which was characterized spectroscopically and by X-ray diffraction. Oxidation of 8 yielded 6-[2,2,4,4-bis(2,2'-dioxy-1,1'-biphenyl)-2,4,6,1,3,5-cyclotriphosphazen-6-yl]-1,5-dimethyl-3-phenyl-6-phosphaverdazyl (5), which was characterized by EPR and ENDOR spectroscopy. Analysis of both spectra indicate that spin density from the phosphaverdazyl ring induces spin polarization into the phosphazene ring, as evidenced by hyperfine coupling to all three phosphorus nuclei.Key words: heterocycle, phosphorus–nitrogen compounds, phosphazenes, stable radicals, verdazyls.

Synthesis and Characterization of Micro and Nano Ba3-xKxHx(PO4)2 and Ba3-xNaxHx(PO4)2

2014 ◽  
Vol 1611 ◽  
pp. 159-164 ◽  
Author(s):  
Sun Hwi Bang ◽  
Sam Chun ◽  
Adrian Highower
Keyword(s):  
Crystal Structure ◽  
Particle Size ◽  
Lattice Strain ◽  
Solid Acid ◽  
Proton Conductor ◽  
Synthesis And Characterization ◽  
Cation Substitution ◽  
X Ray Diffraction ◽  
X Ray

ABSTRACTBa3-xKxHx(PO4)2 is a candidate solid-state proton conductor for solid acid fuel cells that is water-insoluble. The measured conductivity of ∼ 2.4 10-5 S cm-1 for the composition x=0.80 at 250°C is not competitive for solid acid fuel cell applications. This work investigates a methods for synthesizing solid acid electrolytes with the strategy of increasing proton conductivity by cation substitution and decreasing particle size. We report on the synthesis of nano Ba3-xKxHx(PO4)2 to a novel Ba3-xNaxHx(PO4)2. X-ray diffraction was used to confirm the Ba3(PO4)2 crystal structure and measure lattice strain as a function of cation substitution. SEM confirmed the morphology of micro Ba3-xNaxHx(PO4)2 is substantially different from micro Ba3-xKxHx(PO4)2, suggesting that Ba3-xNaxHx(PO4)2 has a different growth kinetics.

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