Electrochemical synthesis and structural characterization of Co(II), Ni(II) and Cu(II) complexes of N,N-bis(4,5-dimethyl-2-hydroxybenzyl)-N-(2-pyridylmethyl)amine.

The electrochemical oxidation of anodic metal (cobalt, nickel or copper) in a cell containing an acetonitrile solution of the ligand N,N-bis(4,5-dimethyl-2-hydroxybenzyl)-N-(2-pyridylmethyl)amine (H2L) affords complexes [Co2L2].H2O (1), [Ni3L3] (2) and [Cu2L2] 3H2O (4). On using nickel as the anode and the addition to the solution electrolytic phase of the amount of water necessary to saturate the solution, the electrolytic process gave rise to the new compound [Ni2L2(H2O)1.

Synthesis and X-ray structures of a series of heteroleptic selenites of copper.

The reactions of [Cu(R-pySe)], R = H, 3-CF(3), with 2,2'-bipyridine or 1,10-phenanthroline in acetonitrile yielded the one-dimensional complexes {[Cu(SeO(3))(phen)] x 2 (H(2)O)}(n), 1, {[Cu(SeO(3))(bipy)] x 2 (H(2)O)}(n), 2. Recrystallization of 1 and 2 from a 1:1 methanol/water mixture led to the formation of the dinuclear complexes [Cu(SeO(3))(phen)(H(2)O)](2), 3, and [Cu(SeO(3))(bipy)(H(2)O)](2), 4. Single crystal X-ray diffraction analysis revealed that 1 and 2 have a polymeric structure in which each oxygen atom of the selenite group coordinates to a copper atom.

Coordination chemistry of amine bis(phenolate) cobalt(II), nickel(II), and copper(II) complexes.

Cobalt(II), nickel(II), and copper(II) (1, 2, and 3) complexes of the dianionic form of the bis(phenolate) ligand N,N-bis(3,4-dimethyl-2-hydroxybenzyl)-N',N'-dimethylethylenediamine (H2L) have been synthesized by electrochemical oxidation of the appropriate metal in an acetonitrile solution of the ligand. When copper is used as the anode, the addition of 1,10-phenanthroline to the electrolytic phase gave rise to a different compound [CuL]2.2CH3CN (4).

Dichlorobis(1-propylimidazolidine-2-thione-kappaS)cobalt(II).

The crystal structure of the title compound, [CoCl(2)(C(6)H(12)N(2)S)(2)], consists of monomer units of a Co(II) atom coordinated to two 1-propylimidazolidine-2-thione ligands and to two chloride ions. The heterocyclic thione ligand is monodentate and coordinated to the metal through the thione S atom. The environment around the Co(II) atom is a slightly distorted tetrahedron.

Aquachloro(1,10-phenanthroline-kappa 2N,N')(p-toluenesulfonato-kappa O)copper(II).

In the title compound, [CuCl(C(7)H(7)O(3)S)(C(12)H(8)N(2))(H(2)O)], the central Cu atom is coordinated by a water molecule, a chloride ion, an O-monodentate p-toluenesulfonate anion and an N,N'-bidentate 1,10-phenanthroline ligand. The copper environment is best described as a slightly distorted square pyramid, with bond distances Cu-Cl 2.2282 (9) A, Cu-OW 1.

catena-Poly[[[tetrakis(1-methylimidazole-kappaN3)copper(II)]-mu2-sulfato-kappa2O:O'] acetonitrile hemisolvate sesquihydrate].

The title compound, [Cu(C(4)H(8)N(2))(4)]SO(4).0.5CH(3)CN.

Synthesis and Characterization of Indium Compounds with Phosphinothiol Ligands. The Crystal and Molecular Structures of [In{2-(Ph(2)P)C(6)H(4)S}(3)], [In{2-(Ph(2)P)-6-(Me(3)Si)C(6)H(3)S}(2){2-(Ph(2)PO)-6-(Me(3)Si)C(6)H(3)S}], and [NMe(4)][In{PhP(C(6)H(4)S-2)(2)}(2)].CH(3)CN.

The electrochemical oxidation of anodic indium metal in an acetonitrile solution of phosphinothiol ligands affords [In{2-(Ph(2)P)C(6)H(4)S}(3)] (1), [In{2-(Ph(2)P)-6-(Me(3)Si)C(6)H(3)S)}(2){2-(Ph(2)PO)-6-(Me(3)Si)C(6)H(3)S}] (2), [In{2-(Ph(2)PO)-6-(Me(3)Si)C(6)H(3)S}(3)] (3), and [NMe(4)][In{PhP(C(6)H(4)S-2)(2)}(2)].CH(3)CN (4) complexes exhibiting distorted six-coordinate geometries based on {InS(3)P(3)}, {InS(3)P(2)O}, and {InS(4)P(2)} cores, respectively. In all cases, the In-P bond distances are anomalously long, presumably as a consequence of steric crowding.