A nanocomposite membrane Cu2+ ion-selective electrode has been constructed using a new compound ethyl 1,2,3,4-tetrahydro-4-(4-methoxyphenyl)-6-methyl-2-oxopyrimidine-5-carboxylat (ETMOC) as a neutral ionophore. The electrode works properly. It responds to Cu2+ ion with a sensitivity of 29.5 ± 0.2 mV/decade over the range 1.0 × 10−9 to 5.0 × 10−1M at p...

The title compound, [Cu(2){SC(NH(2))NHNH(2)}(6)]I(2), was obtained by the reaction of CuI and thio-semicarbazide (TSCZ) in acetonitrile. Each Cu(I) ion is coordinated by four S atoms of the TSCZ ligands, forming a tetra-hedral geometry. Centrosymmetric dimers are formed by two coordination tetra-hedra sharing a common edge, with a Cu⋯Cu distance of 2.8236 (14) Å. The I(-) ion does not have any ...

In the crystal structure of the title compound, [Cu(C(2)H(3)O(3))Cl(H(2)O)](n), the Cu(II) ion is five-coordinate in a distorted square-pyramidal geometry. Two O atoms from a chelating glycolate anion, an O atom from a coordinated water mol-ecule and a chloride anion comprise the basal plane. A chloride ion from a neighbouring unit occupies the apical position and these Cu-Cl-Cu bridges link th...

The sulphhydryl environment in various mixed-metal hybrid hemoglobins, viz. α2(Cu)β2(FeCO), α2(FeCO)-β2(Cu), α2(Cu)-β2(Ni), α2(Ni)-β2(Cu), was studied by reacting them with the sulphhydryl reagent, 4,4′-dithiodipyridine (4-PDS). The reactivity was compared with that of HbCO, NiHb and CuHb. It is found that there exists a correlation between conformational change and metal ion environment, not o...

Emisson spectra and time-resolved two-dimensional (2D) emission images of the electron-ion dielectronic recombination (i.e. a reversal process of auto-ionization) line of neutral Cu atoms, the selectively excited Cu ionic line, and normal Cu atomic line were observed for understanding the excitation mechanisms of Cu neutral and ionic lines in a low-pressure laser-induced plasma (LP-LIP) of Ar. ...

In the monomeric title complex, [Cu(C(6)H(3)BrNO(2))(NO(3))(H(2)O)(2)], the Cu(II) ion is coordinated by a bidentate 6-bromo-picolinate ion, one nitrate ion and two water mol-ecules in a geometry inter-mediate between five- and six-coordinate. Conventional O-H⋯O hydrogen bonds link the complex mol-ecules, forming layers parallel to the ab plane.

The centrosymmetric binuclear Cu(II) title complex, [Cu(2)(C(8)H(7)O(3))(4)(CH(3)CN)(2)], has a paddle-wheel-type structure [Cu-Cu distance = 2.6433 (3) Å]. Each Cu(II) ion is coordin-ated by four O atoms from two 3-meth-oxy-benzoate ligands and one acetonitrile N atom in a square-pyramidal geometry.

Determination of the copper (Cu) content of rat, rabbit, and mouse hearts proved to be a sensitive microassay for mitochondria] content and membrane area of mitochondrial cristae per unit myocardial cell volume. The direction of variations in Cu content correlated well with variations in membrane area of mitochondrial cristae determined by morphometry of electron micrographs during normal postn...

A solid phase extraction procedure for simultaneous separation and preconcentration of traceamounts of Cu+2 ion from various real samples prior to its determination by flame atomicabsorption spectrometry has been developed. The proposed method is based on the utilization ofmultiwalled carbon nanotube in combination with Cupferron ligand as a solid phaseextractant. The influences of the analytic...

Facilitated transport through polymer inclusion membranes (PIMs) is a promising method for simultaneous separation and removal of valuable and toxic metal ions from aqueous solutions. Recently, ionic liquids (ILs) have been used as extracting agents for metal ions due to their unique physicochemical properties. This paper presents research on the facilitated transport of cadmium(II) and copper(...