The cobalt (Co(II)) ion is a main component of alloys and considered to be carcinogenic, especially due to the carcinogenic and toxicological effects in the aquatic environment. The toxic trace of the Co(II) detection was conducted using the infrared photodiode electrode (IPDE) using a working electrode, via the cyclic and square-wave anodic stripping voltammetry. The results indicated a sensit...

Functional mesoporous carbon has been built using 1,10-phenanthroline as the fundamental building block, resulting in a nanoporous, high surface area sorbent capable of selectively binding transition metal ions. This material had a specific surface area of 870 m2/g, an average pore size of about 30 Å, and contained as much as 8.2 wt% N. Under acidic conditions, where the 1,10-phenanthroline lig...

Collision induced dissociation (CID) of the m/z 479 ion, formed by ESI of Co(NO3)2-CH3OH solutions with either pure (1S,2S)-(+)-N-methylpseudoephedrine or its mixtures with (1S,2R)-(+)- or (1R,2S)-(-)-ephedrine, provides compelling evidence for fast, stereoselective reactions in Co(II)/neurotrasmitter(s) aggregates during solvent evaporation of the ESI droplets.

In the title compound, [Co(C(13)H(16)NOSe(2))(2)]·CH(3)CN, the Co(II) atom is four-coordinated by two N,O-bidentate Schiff base ligands, resulting in a distorted tetra-hedral coordination for the metal ion.

In the title compound, [Co2(SO4)2(C10H8N2)2(C2H6O2)2(H2O)2] n , there are two crystallographically independent Co(II) ions, each of which lies on a twofold rotation axis and has a slightly distorted octa-hedral environment. One Co(II) ion is coordinated by two N atoms from two bridging 4,4'-bipyridine (4,4'-bipy) ligands, two O atoms from two sulfate ions and two O atoms from aqua ligands. The ...

The asymmetric unit of the title compound, [Co(C(6)H(12)NO(4))(2)], contains one half-mol-ecule with the Co(II) ion situated on an inversion center. Inter-molecular O-H⋯O hydrogen bonds generate a three-dimensional hydrogen-bonding network, which consolidates the crystal packing.

The asymmetric unit of the title compound, [Co(C(10)H(16)BN(4))(2)], comprises one unit of the complex. The geometry around the Co(II) ion is a distorted tetra-hedron. The dihedral angles between the pyrazole rings in the two ligands are 47.19 (15) and 47.20 (16)°, while that between the coordination planes is 79.77 (7)°.

In the title complex, [Co(C(12)H(8)N(2))(3)](C(2)Cl(3)O(2))(2), the Co(II) ion lies on a twofold rotation axis and is coordinated by six N atoms from three bis-chelating 1,10-phenanthroline ligands in a distorted octa-hedral environment. The crystal structure is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.

In the title compound, [Co(C(7)H(3)Cl(2)O(2))(2)(C(10)H(8)N(2))(CH(3)OH)(2)](n), the Co(II) ion lies on a twofold rotation axis and is in a slightly distorted octa-hedral CdO(4)N(2) environment, formed by two O atoms from monodentate dichloro-benzoate ligands, two O atoms from methanol ligands, and two N atoms from trans-related 4,4'-bipyridine ligands. The bipyridine ligands also lies on a two...

The cyclo-tetra-phosphate anion, [P(4)O(12)](4-), forms the title complex with cobalt(II) and quinolinium, {(C(9)H(8)N)(2)[Co(P(4)O(12))(H(2)O)(2)]·6H(2)O}(n). In the complex anion, the Co(II) ion, lying on an inversion center, is surrounded by four phosphate O atoms and two water mol-ecules in a slightly distorted octa-hedral geometry. The crystal structure consists of anionic ribbons of formu...