Oxidation reaction of [{Cu(Hpz)2Cl}2](Hpz = pyrazole): synthesis of the trinuclear copper(II) hydroxo complexes [Cu3(OH)(pz)3(Hpz)2Cl2]·solv (solv = H2O or tetrahydrofuran). Formation, magnetic properties, and X-ray crystal structure of [Cu3(OH)(pz)3(py)2Cl2]·py (py = pyridine)

Structure and magnetic properties of ferrimagnetic bioceramics in the system {0.45(CaO, P2O5) ySiO2 xFe2O3 0.03Na2O}, x=0.05, 0.10, 0.15, 0.20, were studied by x-ray powder diffraction and magnetic measurements. Magnetite and calcium phosphate, crystallizing in the hexagonal and monoclinic crystal systems, are the major phases in the compounds. Phase development, crystal structure, and magnetic properties of the composites are determined by the specific starting composition of oxides and the heat-treatment temperature.

Download Full-text

Isotropic and Anisotropic Magnetic Exchange Interactions through .mu.-N1,N2 1,2,4-Triazole and .mu.-Sulfato Bridges: X-ray Crystal Structure, Magnetic Properties, and Single-Crystal EPR Study of (.mu.-4-Amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-N',N1,N2,N'')(.mu.-sulfato-O,O')[(sulfato-O)aquacopper(II)]triaquacopper(II) Hydrate

Inorganic Chemistry ◽

10.1021/ic00125a015 ◽

1995 ◽

Vol 34 (21) ◽

pp. 5175-5182 ◽

Cited By ~ 61

Author(s):

Petra J. van Koningsbruggen ◽

Dante Gatteschi ◽

Rudolf A. G. de Graaff ◽

Jaap G. Haasnoot ◽

Jan Reedijk ◽

...

Keyword(s):

Crystal Structure ◽

Magnetic Properties ◽

Single Crystal ◽

Exchange Interactions ◽

Magnetic Exchange ◽

X Ray

Download Full-text

ChemInform Abstract: SUBSTITUTED PHENOLS AS LIGANDS. PART 7. X-RAY CRYSTAL-STRUCTURE ANALYSIS OF BIS(2-METHOXY-4-NITROPHENOLATO)BIS(PYRIDINE)NICKEL(II) AND THE ELECTRONIC AND MAGNETIC PROPERTIES OF THE ISOMORPHOUS BIS(2-METHOXY-4-NITROPHENOLATO)BIS(PYRIDI

Chemischer Informationsdienst ◽

10.1002/chin.197808066 ◽

1978 ◽

Vol 9 (8) ◽

Author(s):

J. I. BULLOCK ◽

M. F. C. LADD ◽

D. C. POVEY

Keyword(s):

Crystal Structure ◽

Magnetic Properties ◽

Structure Analysis ◽

Crystal Structure Analysis ◽

Substituted Phenols ◽

X Ray ◽

Electronic And Magnetic Properties

Download Full-text

Synthesis, characterization and X-ray crystal structure of an iron(III) complex of a tripodal pyridoxal Schiff base ligand: effects of positional disorder on its magnetic properties

Transition Metal Chemistry ◽

10.1007/s11243-018-0249-x ◽

2018 ◽

Vol 43 (7) ◽

pp. 605-619

Author(s):

Viera Murašková ◽

Michal Dušek ◽

Maksym Buryi ◽

Valentyn Laguta ◽

Štěpán Huber ◽

...

Keyword(s):

Crystal Structure ◽

Magnetic Properties ◽

Schiff Base ◽

Schiff Base Ligand ◽

X Ray ◽

Positional Disorder ◽

Ligand Effects

Download Full-text

La- and Lu-agardite – preparation, crystal structure, vibrational and magnetic properties

Zeitschrift für Naturforschung B ◽

10.1515/znb-2019-0189 ◽

2020 ◽

Vol 75 (1-2) ◽

pp. 191-199

Author(s):

Aleksandr M. Golubev ◽

Eva Brücher ◽

Armin Schulz ◽

Reinhard K. Kremer ◽

Robert Glaum

Keyword(s):

Crystal Structure ◽

Magnetic Properties ◽

Dft Calculations ◽

Powder Diffraction ◽

Hexagonal Structure ◽

Water Molecules ◽

X Ray ◽

Bond Lengths ◽

Inner Diameter ◽

Low Dimensional

AbstractPolycrystalline samples of La- and Lu-agardite with the composition RECu6(OH)6(AsO4)3 · n H2O (RE = La, Lu; n≈3) have been prepared and the structure of the products was determined by X-ray powder diffraction studies. The characterization has been complemented by Raman and UV/Vis spectroscopic, magnetic and TGA investigations. DFT calculations support the conclusions drawn from the experiments. The arsenates RECu6(OH)6(AsO4)3 · n H2O (RE = La, Lu; n≈3) are isostructural with the mineral mixite and crystallize with a hexagonal structure which contains ribbons of edge-sharing [CuO5] square-pyramids extending along the hexagonal axis. They are interconnected via (AsO4)3− groups to form hexagonal tubes of about 10 Å inner diameter. Such zeolite-like tubes host water molecules, which can be reversibly removed at moderate temperatures (T≈100°C). Like in mixite and YCu6(OH)6(AsO4)3 · 3 H2O, the Cu2+ cations in RECu6(OH)6(AsO4)3 · n H2O (RE = La, Lu; n≈3) exhibit low-dimensional antiferromagnetic properties, which are subject to changes in the Cu–O–Cu bond lengths and angles due to the lanthanide contraction.

Download Full-text