Two new salts of the cation [CuI(dmp)2]+ (dmp is 2,9-dimethyl-1,10-phenanthroline, C14H12N2), namely bis[bis(2,9-dimethyl-1,10-phenanthroline-kappa2N,N')copper(I)] bis(hexafluorophosphate) hemi[bis(4-pyridylmethylidene)hydrazine] acetonitrile solvate, [Cu(C14H12N2)2]2(PF6)2.0.5C12H10N4.C2H3N or [Cu(dmp)2]2(PF6)2.0.5(bpmh).CH3CN [bpmh is bis(4-pyridylmethylidene)hydrazine, C12H10N4], (I), and bi...

In the title compound, [CuCl(3)(C(6)H(16)N(3))]·H(2)O, the copper(II) ion is five-coordinated by two N atoms from the bidentate 4-(2-amino-ethyl)piperazin-1-ium cation and three chloride ions in a distorted square-pyramidal environment. Inter-molecular N-H⋯Cl and O-H⋯Cl hydrogen bonds build up an intricate three-dimensional network.

The asymmetric unit of the title polymeric mononuclear Cu(II) complex, [Cu(C2N3)2(NH3)2] n , contains one half-mol-ecule, the complex being completed through inversion symmetry, with the Cu(II) atom situated on the centre of symmetry. The coordination polyhedron around Cu(II) is a Jahn-Teller-distorted [CuN6] octa-hedron. The terminal N atoms of two dicyanamide ligands and two ammine ligands fo...

Speciation of copper in a contaminated soil during electrokinetic remediation (EKR) assisted by H3PO4 was studied by in situ X-ray absorption near edge structural (XANES) spectroscopy. The least-square fit of the XANES spectrum showed that CuCO3 (68%) and CuCl2 (32%) were the major copper species in the contaminated soil. In the presence of H3PO4 (40%), most of CuCl2 and about 24% of CuCO3 were...

2 Gap and Reactivity of Cupric Oxide Nanosheets 3 Zachary S. Fishman,† Benjamin Rudshteyn,‡ Yulian He, Bolun Liu, Subhajyoti Chaudhuri,‡ 4 Mikhail Askerka,‡ Gary L. Haller,†,‡ Victor S. Batista,*,‡ and Lisa D. Pfefferle*,† 5 †Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States 6 ‡Department of Chemistry and Energy Sciences Inst...

Measurements of flash-induced absorption changes at 325, 436, and 830 nm and of oxygen evolution were performed in order to analyze in detail the inhibition of photosystem II (PS II) by Cu(II) in PS II membrane fragments from spinach. (a) The kinetics of P680+ reduction become markedly slower in the presence of 100 microM CuSO4. (b) The CuSO4-induced kinetics of P680+ reduction are dominated by...

the synthesis, spectroscopy and magnetic characterization of five new dinuclear copper(ii) complexes are described. all five compounds have the general formula [cu2(l)4(o-r)2](cl)2 or [cu2(l)2(cl)2](cl)2, in which r = ch3 or h, l=2, 3 or 4-pyridinemethanol as l2, l3 or l4, respectively. the title compounds consist of dinuclear units with bridging methoxo groups in [cu2(l4)4(o-ch3)2](cl)2, hydro...

tow new compound of type [(chelate)2cu-oh-cu(chelate)2] x3.nh2o, where chelate=1,10-phenanthroline; x=cl¯(n=3.5) and chelate=4,4'-dimethyl-2,2'-bipyridine;  (n=5) have been synthesized and their properties investigated. the complexes show room temperature magnetic moment order of 1.0 b.m. per copper atom. the x-band esr spectrum of powdered samples at room temperature shows typical dm=1 transit...

Copper, an ion with many important metabolic functions, has also been proposed to have a role as modulator on neuronal function, mostly based on its effects on voltage- and neurotransmitter-gated conductance as well as on neurological symptoms of patients with altered copper homeostasis. Nevertheless, the mechanisms by which copper exerts its neuromodulatory effects have not been clearly establ...

In the title heterotrinuclear coordination compound, [CaCu(2)(C(9)H(4)NO(5))(2)(C(3)H(4)N(2))(2)(H(2)O)(3)]·7H(2)O, the Ca(2+) cation is in a penta-gonal-bipyramidal geometry and bridges two (1H-imidazole)[2-(oxaloamino)benzoato(3-)]copper(II) units in its equatorial plane. Each Cu(II) atom has a normal square-planar geometry. The mol-ecule has approximate local (non-crystallographic) mirror sy...