In the solid state, the synthesis, crystal structures, and electronic and magnetic properties of three new CuII compounds containing the tridentate pzpy ligand with the general formula [CuII(pzpy)(L)(OH2)x] (where x=1 for L=CH3CO2 and x=0 for L=N3 or NC–N–CN) are reported. ...
electronically enforced elongation of one or two copper-donor bonds, and also for an analysis of the steric repulsion between the co-ligands (NCCH3, OH2, Cl–, NO3–) and the bispidine backbone (primarily the 6-methyl substituents of the pyridine donors) in the three isomeric chromophores....
The individual classes of structural materials, in turn, are divided into numerous groups. For example, metal alloys are distinguished according to system (aluminum, magnesium, titanium, copper, nickel, molybdenum, niobium, beryllium, and tungsten, as well as iron-based), type of hardening (temper...
Four compounds, each containing dinuclear Copper (II) units (with the most robust, frequently occurring paddle wheel structures) were synthesized and characterised by single crystal X-ray diffraction and by IR spectroscopy. The compounds 1 & 2 have the general formula Cu2(RCOO) 4(L)2 [(for ...
Using the chemical co-precipitation method, nanocrystalline chromium-doped copper-cadmium ferrites with the stoichiometric formula\({\mathrm{Cd}}_{0.5}{\mathrm{Cu}}_{0.5}{\mathrm{Cr}}_{\mathrm{x}}{\mathrm{Fe}}_{2-\mathrm{x}}{\mathrm{O}}_{4}\)with steps x = 0, 0.05, 0.10,...
In the space of 8 years therefore, an additional class of cysteine-modified lipoproteins and the enzymes responsible for their synthesis have been identified. An intriguing link to copper homoeostasis in bacteria and to immune response attenuation raises interest in these lipoprotein processing enzymes....
In this centre, one copper atom is coordinated by the Nδ atoms of two His residues, one mainchain oxygen derived from Gly, one Sδ atom of a Met residue and one Sγ atom of a Cys residue. The coordination geometry is trigonal bipyramidal (TBPY-5; the polyhedral symbols used are as ...
The structural information has been compiled in a single table containing phase compositions and the corresponding standard crystallographic data (such as crystal system, space group, unit cell parameters, number of formula units per cell [Z], reliability factors [R1], Ga-F, and Ga-O bond ...
Extracting pure elements or compounds from asteroid material will not be straightforward, and flowsheets will need to be developed that mimic those used on Earth. In terrestrial mining, flowsheets are used to describe the sequence of unit processes to take the bulky raw ore (which cannot be use...
The structure of Cu2SnSe3 is a derivative of the sphalerite structure. Each anion is coordinated by four cations located at the corners of a slightly distorted tetrahedron. In the formula of Cu2SnSe3 we have 3 Se anions; one Se is coordinated by two Cu and two Sn, the second and the ...