Dinuclear cobalt-1,10-phenanthroline (1) and 2,2'-bipyridine (2) complexes bridged by 1,8-bis(2,2':6',2''-terpyrid-4'-yl)anthracene (btpyan) were prepared. Both of the complexes selectively catalysed the electrochemical four-electron reduction of dioxygen to H2O without the generation of H2O2 as a two-electron reduction product.

In the title azide-bridged dinuclear centrosymmetric nickel(II) complex, [Ni(2)(N(3))(4)(C(12)H(12)N(2))(2)], the Ni(II) atom is five-coordinated by two N atoms of the 5,5'-dimethyl-2,2'-bipyridine ligand and three N atoms from three azide ligands in a distorted trigonal-bipyramidal geometry. The Ni⋯Ni distance is 3.2398 (12) Å.

A cationic mononitrosyl dinuclear ruthenium complex was prepared by removing one NO ligand of a dicationic dinitrosyl ruthenium complex using NaN3. Reduction and oxidation reactions of the mononitrosyl complex led to the isolation of a neutral nitrosyl-bridged complex and a dicationic mononitrosyl complex, respectively, as expected from the cyclic voltammogram. According to the electron count, ...

The syntheses and X-ray crystal structures of dinuclear μ-azido and μ-nitrido bridged iridium complexes bearing the pyridine, diimine ligand (PDI) are reported. Their electronic structures and formal oxidation states of the metal centers are analyzed by theoretical and experimental methods, revealing the non-innocence of the PDI and nitrido ligands.

An ethoxy-bridged dinuclear indium catalyst was used for the ring opening polymerization of the cyclic ester β-butyrolactone to form the biodegradable polyester poly(hydroxybutyrate) (PHB). The catalyst shows remarkable activity and control during polymerization, allowing for formation of diblock polymers. Addition of high ratios of alcohols to the catalyst leads to fast chain transfer and immo...

The title compound, [Zn(2)(C(14)H(13)N(2)O)(2)(N(3))(2)], is a phenolate-bridged centrosymmetric dinuclear zinc(II) complex. The Zn⋯Zn distance is 3.076 (1) Å. Each Zn atom is five-coordinated by two O and two N atoms from two Schiff base ligands, and by one azide N atom, forming a square-pyramidal geometry.

Reaction of the C(3)-symmetric triazine bridged tris(benzene-o-dithiol) ligand H(6)-1 with Ti(4+) leads to the unexpected formation of the dinuclear complex (Me(3)PhN)(4)[Ti(2)(1)(2)] while other C(3)-symmetric ligands are reported to form either mono- or tetranuclear complexes.

Two dinuclear aluminum alkyl complexes supported by a piperazidine-bridged bis(phenolato) group were prepared, and both complexes exhibited extremely high activity for the ring-opening polymerization of ε-caprolactone. In the presence of benzyl alcohol (BnOH), the polymerization accelerated dramatically.

In the centrosymmetric dinuclear title Cu(II) complex, [Cu2(C7H4ClO2)(C2H5OH)2], the Cu-Cu distance is 2.5905 (4) Å. The two metal atoms are bridged by four 4-chloro-benzoate ligands and each has an ethanol mol-ecule in the axial position of the overall octahedral coordination environment. The crystal packing features O-H⋯O hydrogen bonds.