In the title compound, [CoCl(C(12)H(8)N(2))(H(2)O)(3)]Cl·H(2)O, the Co(II) ion is coordinated by two N atoms from the 1,10-phenanthroline ligand [Co-N = 2.125 (6) and 2.146 (6) Å], one chloride ligand [Co-Cl = 2.459 (2)Å] and three water mol-ecules [Co-O = 2.070 (5)-2.105 (5)Å] in a distorted octa-hedral geometry. Inter-molecular O-H⋯Cl and O-H⋯O hydrogen bonds form an extensive three-dimension...

In the title compound, [Co(NCS)(2)(C(16)H(16)N(4)O(2))](n), the octa-hedrally coordinated Co(II) ion lies on a crystallographic inversion center, with trans isothio-cyanate ligands. Pyridyl N-donor atoms and formyl O-donor atoms from exotetra-dentate bis-(4-pyridyl-carbon-yl)piperazine (4-bpfp) ligands link the Co(NCS)(2) units into a [Co(NCS)(2)(4-bpfp)](n) coordination polymer layer that is o...

An unprecedented two-dimensional honeycomb network based on fused triacontanuclear heterometallic wheels of 3.4 nm, {[Co2(Mn3O)(N3)2(pic)6(NO3)](-)}6 (Hpic = picolinic acid), has been assembled. The hexagonal {Co12Mn18} wheel motif is composed of six oxo-centered {Mn3} trinuclear and six {Co2} dinuclear moieties acting as nodes and linkers, respectively. The paramagnetic properties of this comp...

Salicylic acid-Formaldehyde-m-Cresol (SFM) terpolymer had been synthesized in DMF media by conventional method. The resulting resin had been characterized by FTIR spectra, elemental and thermogravimetric analyses. The morphology of SFM resin had been studied by SEM and Optical photograph. Various parameters like rate of equilibration, effect of pH on ion exchange capacity and effect of conc...

The title compound, {[Co(3)(C(6)H(4)NO(2))(2)(C(8)H(3)NO(6))(2)(H(2)O)(2)]·4H(2)O}(n), exhibits a two-dimensional layer-like structure in which the Co(II) ions exhibit two kinds of coordination geometries. One nearly octa-hedral Co(II) ion with crystallographic inversion symmetry is coordinated to six carboxyl-ate O atoms from four bridging 5-nitro-isophthalate (NIPH) ligands and two isonicotin...

The kinetics and mechanism of the reaction between dissolved oxygen and sulfur(iv) was studied in aqueous acidic medium using co-catalysts peroxodisulfate and silver(i) ions. The presence of both catalysts was required to observe measurable rates in the studied process. The reaction rate was determined through following the UV-absorption of hydrated sulfur dioxide, and the trends were determine...