A dinuclear Rh(− i )/Rh( ) complex bridged by tridentate phosphinine ligands was prepared reduction of the corresponding Rh( complex. An unsymmetric bridging mode differentiated electronic environments Rh centres.

In the polymeric title compound, {[Mn(2)(SO(4))(2)(C(30)H(36)N(6))(H(2)O)(2)]·6H(2)O}(n), the two Mn(2+) ions are bridged by two sulfate anions to form dinuclear complexes, and these dinuclear species are linked by the hexa-dentate ligand N,N,N',N'-tetra-kis(2-pyridylmeth-yl)hexane-1,6-diamine (tphn), forming a one-dimensional chain structure running in the [101] direction. The repeat unit of t...

The title compound, {[ZnCl(C13H12F2N6O)2]Cl·2H2O} n , is a two-dimensional coordination polymer. The Zn(II) atom is six-coordinated by four N atoms from four 2-(2,4-di-fluoro-phen-yl)-1,3-bis-(1,2,4-triazol-1-yl)propan-2-ol (HFlu) ligands and by two Cl atoms in a distorted octa-hedral geometry. Two Cl atoms bridge two Zn(II) atoms, forming a centrosymmetric dinuclear unit. The HFlu ligands conn...

The title compound, [Li(C(5)H(4)N(3)O(2))(H(2)O)](n), is composed of centrosymmetric dinuclear units, in which the Li(I) ions are bridged by two carboxyl-ate O atoms donated by two ligands. The dinuclear unit is nearly planar [r.m.s. deviation = 0.0125 (2) Å]. The Li(I) ion is coordinated by an N,O-chelating ligand, a bridging carboxyl-ate O atom from another ligand and two bridging water O ato...

Mass parameters for collective variables of a dinuclear system and strongly deformed mononucleus are microscopically formulated with the linear response theory making use of the width of single particle states and the fluctuation– dissipation theorem. For the relative motion of the nuclei and for the degree of freedom describing the neck between the nuclei, we calculate mass parameters with bas...

Mass parameters for collective variables of a dinuclear system and strongly deformed mononucleus are microscopically formulated with the linear response theory making use of the width of single particle states and the fluctuation– dissipation theorem. For the relative motion of the nuclei and for the degree of freedom describing the neck between the nuclei, we calculate mass parameters with bas...

The structure of [Cu(tpen)](ClO4)2 (tpen = N,N,N',N'-tetrakis(2-pyridylmethyl)-1,2-ethanediamine) has been identified by X-ray crystallography. The copper(II) ion is surrounded by two amine N atoms and three pyridine N atoms of the ligand, making a distorted trigonal-bipyramid. Among the six potential N donor atoms (two amine N and four pyridine N atoms), only one pyridine N atom remains uncoor...

The synthesis and characterization of two dinuclear ruthenium polypyridyl complexes based on the bridging ligands 5,5'-bis(pyridin-2' '-yl)-3,3'-bis(1H-1,2,4-triazole) and 5,5'-bis(pyrazin-2' '-yl)-3,3'-bis(1H-1,2,4-triazole) and of their mononuclear precursors are reported. The dinuclear compounds have been prepared by a Ni(0) catalyzed coupling of a mononuclear ruthenium(II) polypyridyl compl...

A bispidine-like ligand involving four pyridine-N and three aliphatic-N donor atoms forms a bimetallic species with CuCl2 in which all seven N-donors are bound and which aggregates in the crystal through double chloride-bridging to give a tetranuclear unit. The magnetism of this solid can be interpreted in terms of a relatively weak antiferromagnetic coupling between the two Cu(ii) centres of t...

The title dinuclear Cu(II) complex, [Cu2(C17H13N2O2)4], is located on an inversion centre. The Cu(II) atoms are each five-coordinated in a distorted square-pyramidal geometry by two N atoms and two O atoms from two bidentate ligands and one bridging O atom from another ligand. In the dinuclear complex, the Cu⋯Cu separation is 3.366 (3) Å. In the crystal, complex mol-ecules are linked via weak C...