2 edition of Magnetic and structural correlations in copper bromide salts found in the catalog.
Magnetic and structural correlations in copper bromide salts
Written in English
|Statement||by Helen Place.|
|The Physical Object|
|Pagination||xii, 119 leaves, bound :|
|Number of Pages||119|
The magnetic moments of COpper(II) halide perovskite salts (3AP)CuX4, where X stands for Br or Cl, have been reported for the first time. The experimental results are explained by the Baker model, which is a high T expansion of the Heisenberg Hamiltonian for a square lattice combined with a molecular exchange field correction. acetate acid ACOEt Ammonium atomic bpſ"C den/g cm-º bromide carbon CAS RN Mol chloride Cish Cl Cl Cl cm-º no Solubility Cobalt(II CºH CºHº Colgas compounds Copper(II cry MeOH cub cry dec vs H.0 Diethyl dilacid dilal DMSO electron element Erbium eth;s ether Ethyl Ethylene glycol EtOH eth fluoride Form mpſ H.0 s EtOH hex cry /5(2).
The main research subjects of Macedonian crystallographers have been related to chemical crystallography (especially, metal-coordination compounds as models for biological effects of food additives), inorganic compounds (spectra-structural correlations in isomorphous and isotypic series), organic compounds with interesting electronic, optical. b) A suspension of 5 g copper(II) acetate monohydrate ( 10~2 м) in a solution of g quinoline N-oxide ( 10"2 м) in ml of 96 % ethanol. We isolated g of the final product. Copper and nitrogen were determined in the isolated substances. Copper was determined after the sample had been burnt and the ashes were converted.
The Hall effect is observed when a magnetic fi eld is applied at right-angles to a conductor carrying a current (Fig. 3). The magnetic fi eld defl ects the current carriers and a restoring force (the Hall potential) is generated in order to maintain equilibrium so the current can continue fl owing. This equilibrium can be expressed as: B eV. The most familiar magnets are permanent magnets like the ones on a refrigerator door. However, for applications in transformers and motors, soft magnets that can rapidly switch their magnetization in response to a magnetic field are used. In electronics, wide bandgap semiconductors such as silicon carbide will allow power conversion electronics and motor controllers to operate more Cited by:
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ChemInform Abstract: CRYSTAL STRUCTURE AND MAGNETIC PROPERTIES OF ((C2H5)2NH2)2(CU3BR8).CUBR2.C2H5OH: MAGNETOSTRUCTURAL CORRELATIONS IN COPPER(II) BROMIDE SALTS. Chemischer Informationsdienst14 (17) DOI: /chinCited by: Magnetostructural correlations in copper (II) bromide salts. Journal of Applied Physics61 (8), DOI: / R.
WILLETT. ChemInform Abstract: Magnetic Susceptibility of Paraquat Hexabromodicuprate(II): Comparison of the Magnetochemistry of Copper(II) Chloride and Copper(II) Bromide by: The magneto-structural correlations in Cu(25dbp)2X2 and Cu(2bp)2Br2, where 25dbp = 2,5-dibromopyridine, X = Cl or Br, and 2bp = 2-bromopyridine have been investigated.
The supramolecular structures of Cu(25dbp)2X2 are based on C–Br⋯X–Cu halogen bonding by: Magneto–structural correlation in a series of iodide salts of p-N-alkylpyridinium nitronyl nitroxides: dependence of the iodide–pyridinium ring interaction on the length of the N-alkyl chain K. Awaga, A. Yamaguchi, T.
Okuno, T. Inabe, T. Nakamura, M. Matsumoto and Y. Maruyama, J. Mater. The magnetic properties of copper(II) imide complexes with isoquinoline as a ligand have also been studied.
We were interested in examining how the change in position of the nitrogen atom in isoquinoline would affect the structure and magnetic exchange properties of copper(II) halide complexes and salts relative to what is observed in the quinoline analogs and thus have begun a study of these by: 2.
Key Word: Magnetic Super - Exchange; Antiferromagnetic Coupling; Crystal Structure 1. Introduction Magneto-structural correlations have been studied extensively in dinuclear copper(II) compounds.
Three classes of compounds may be distinguished, namely dinuclear cop-per(II) halides with salicylaldimines, dinuclear copper(II) halides with. The magneto-structural correlations indicate that the geometry change of terminal copper (II) ions plays a key role in determining the magnitude of magnetic coupling constant and the dihedral.
Purchase Molten Salts Handbook - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. As part of a study of two-dimensional magnetic systems, we have made an ESR investigation of sever- al copper bromide salts with the general formula (RNH3)2CuBr4 or (NH3 RNH3) CuBr4.
lt has been shown that copper chlorides and bromides of this general structure type are two•dimensional ferromag- nets The temperature dependence of the ESR linewidths  and the angulur dependence of the g- Cited by: 9.
The nearest-neighbor exchange coupling constant shows very similar trends to those found earlier for dinuclear compounds for which the Cu-O-Cu angle and the out of plane displacement of the hydrogen atoms at the bridge are the two key structural factors that determine the nature of their magnetic Cited by: Copper(I) bromide % trace metals basis Synonym: Cuprous bromide CAS Number Linear Formula CuBr.
Molecular Weight EC Number MDL number MFCD PubChem Substance ID NACRES NA The magnetic behavior of planar bibridged copper(II) halide dimers, trimers, and tetramers are summarized. The planar oligomers exhibit antiferromagnetic coupling.
Dimeric Cu2X 6 2 ions can undergo one of two types of distortions: a tetrahedral twist distortion Author: Roger Willett, Todd Grigereit, Kris Halvorson, Brian Scott. The data were interpreted using both 1D and 2D series expansions for the Heisenberg model, combined with the appropriate mean‐field corrections, yielding interlayer exchanges with J 2h /k values of (−11±2) K for the chloride salt and (−52±7) K for the bromide by: 6.
In the field of inorganic chemistry, magneto-structural correlations have been used to rationally design molecules with desirable properties, and to relate these properties to the electronic and geometric structures. In turn, such studies provide powerful tools for understanding important catalytic processes, as well as elucidating the structures of active sites in metalloproteins.
Vibrational spectroscopic and force field studies have been performed of 15 related copper(II) chloride and copper(II) bromide compounds, including hydrated salts crystallizing in ternary aqueous. gK) of the tensors could be determined and information on the structural changes in the [CuBr4]2 anions can be obtained.
The complexes have high potential, e.g., as ionic liquids, as precursors for the synthesis of copper bromide particles, as catalytically active or paramagnetic ionic by: 5. González, R. et al. Magnetic studies on hexaiodorhenate(IV) salts of univalent cations.
spin canting and magnetic ordering in K2ReI6 with Tc=24 K. Inorg. Chem. 42, – (). ArticleCited by: Magnetic nanoparticles (MNPs) made of iron oxides with cubic symmetry (Fe 3 O 4, γ -Fe 2 O 3) are demanded objects for multipurpose in biomedical applications as contrast agents for magnetic resonance imaging, magnetically driven carriers for drug delivery, and Cited by: 2.
Some trends were established based on the magnetic properties of the homologous series including ordering temperature/bulkiness of the alkyl group and intrastack distances/theta values. Correlation of magnetic and structural properties may give some insight into "through-space" magnetic coupling, of which little is : William Stuart Tyree, Gordon Yee, Brian Hanson, Karen Brewer.
Results and Discussion Syntheses and structural properties. Syntheses of the ligands and mononuclear Ln III complexes were carried out as reported elsewhere.
9 The respective ligand ( equiv.), trichloride hexahydrate lanthanide salt (1 equiv.), and pyridine as a base were heated to reflux in methanol for 24 hours. Characterization by mass spectrometry and elemental analysis was carried out Cited by: 2. 15 nanoparticles were successfully prepared by alternate reduction of metal salts in aqueous medium.
Detailed inves-tigations on the correlation between the magnetic and structural properties of these nanoparticles are presented as a function of annealing : Fang Wang, Xiaojun Bai.
Magnetic characteristics of the copper ion modified DNA thin films. (a) The variation of coercive field (H c) and remanent magnetization (M r) without and with various [Cu 2+ ].Cited by: Magnetochemistry of copper(ll) 83 3.
Magnetic linear chains The magnetochemistry of copper(II) is an active field of research, with much of the attention centered on linear chain systems. By this, we mean substances whose magnetic interactions occur primarily in one dimension. These systems display.