The electrochemical behaviour of lead electrode in hydrochloride solution containing variousoxo-anions at different concentrations was studied by using of cyclic voltammetry (CV) method.Results obtained show that the addition of these inorganic compounds decreases the anodic andcathodic currents peaks according to the following order: H2PO4- > HPO42-> SO42-. It’s revealedalso that the cathodic ...

1387-7003/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.inoche.2009.09.009 * Corresponding author. Tel.: +1 270 7453943; fax: E-mail address: [email protected] (B. Yan). A new organic–inorganic hybrid compound, [Zn(bpy)3]1.5[H3W12O40Zn(bpy)2(H2O)] 0.5H2O (bpy = 2,20bipyridine) has been synthesized hydrothermally from ZnCl2, Na6[H2W12O40], and 2,20-bipyridine, and has been analyzed usin...

We describe how supramolecular assembly, mediated by control of the ratio of the hetero-atoms in the units [Mo2S2O2] 2+ and SeO3 2 leads to the formation of new types of building blocks, [(Mo2O2S2)3(OH)4(H2O)6(SeO3)] 1⁄4 {Mo6} and [(Mo2O2S2)2(OH)2(H2O)4(SeO3)] 1⁄4 {Mo4} which are linked in an type of inorganic ‘panelling’ to the assembly of a range of new clusters 1–3 with the general formula {...

Two new complexes, [Cu(dimpyr)2(H2O)2](NO3)2.2H2O (1) and (Hamdimpy)2[CoCl4].H2O (2), with the monodentate ligand 2-amino-6-methylpyrimidin-4-(1H)-one (dimpyr) countercation 4-amino-2,6-dimetylpyrimidium (Hamdimpy), respectively, were prepared characterized by single crystal X-ray diffraction, elemental analysis IR spectroscopy. In (1), Cu(II) cation is tetracoordinated, in a square plan fashio...

The mechanism that controls the self-assembly of complex polyoxometalate inorganic clusters in solution is a challenge because can contain anywhere from 6 to 368 metal ions single molecule and are commonly assembled under ʻone-potʼ reaction conditions. Furthermore, harnessing ʻself-assemblyʼ processes allows synthesis on length-scale with degree complexity which not easily accessed by more trad...

Pure neutral (CO2)n clusters and mixed (CO2)n(H2O)m clusters are investigated employing time of flight mass spectroscopy and single photon ionization at 26.5 eV. The distribution of pure (CO2)n clusters decreases roughly exponentially with increasing cluster size. During the ionization process, neutral clusters suffer little fragmentation because almost all excess cluster energy above the verti...

the structure of the nonaaquayttrium (iii) bromate, [y(h2o)9](bro3)3, at low temperature (100 k) has been studied by means of single-crystal x-ray diffraction. crystallography shows a hexagonal unit cell, space group p63/mmc (no. 194) with z = 2, a = b = 11.7104(11) å, c = 6.6259(5) å and v = 786.90(12) å3 at 100 k. the hydrated trivalent yttrium(iii) ion forms a tricapped trigonal prism, in wh...

Six new organic-inorganic hybrid compounds based on [XM12O40](4-) (X = heteroatom, M = metal atom), namely [Cu(pic)2][H2XM12O40]·2Hapy·2apy (X = Si, M = W for , X = Ge, M = W for and X = Si, M = Mo for ), [Cu(2,2'-bpy)2][Cu(2,2'-bpy)(H2O)][Cu(pic)2]0.5[XM12O40]·nH2O (X = Si, M = Mo, n = 0.5 for , X = Ge, M = W, n = 1 for ) and [Cu(phen)(H2O)]2[Cu(pic)2][GeW12O40]·2.5H2O () (pic = deprotonated p...

Crystallographic anomalous scattering from potassium at 1.7 A resolution reveals two monovalent ions that interact with MgADP and P(i) in the nucleotide binding cleft of wild-type recombinant bovine Hsc70 ATPase fragment. K+ at site 1 interacts with oxygens of the beta-phosphate of ADP, whereas K+ at site 2 interacts with an oxygen of P(i). Both K+ ions also interact with specific H2O molecules...

Two 3d-4f hetero-metal pentanuclear complexes with the formula {[CrIII2LnIII3L10(OH)6(H2O)2]Et3NH} [Ln=Tb (1), Dy (2); HL=pivalic acid, Et3N=triethylamine] have been produced. The metal core of each cluster is made up of a trigonal bipyramid with three LnIII ions (plane) and two CrIII ions (above and below) held together by six μ3-OH bridges. Also reported with this series is the diamagnetic Cr...