In the title dinuclear nickel(II) complex, [Ni(2)(C(8)H(4)FO(3))(2)(H(2)O)(4)]Cl(2), synthesized by the reaction between 4-fluoro-2,6-diformyl-phenol and nickel(II) chloride in methanol, the coordination cation is located on an inversion center and the Ni(II) atom adopts a slightly distorted octa-hedral coordination geometry. The two Ni atoms are bridged by two phenolate O atoms and the intra-m...

A new dinuclear triphenyl-anti-mony(V) derivative with an oxide bridge, [Sb(2)(C(6)H(5))(6)(C(6)H(3)ClNO(2))(2)O], has been synthesized. Each Sb atom is five-coordianted by three C atoms and two O atoms in a distorted trigonal-bipyramidal geometry. Metal centers are bridged by a μ(2)-oxide functionality, and phenyl substituents on Sb atoms are in an staggered arrangement. The Sb-O-Sb bridge dis...

In the title compound, [Cu(2)(C(15)H(12)N(2)O(4))(2)(C(6)H(5)N)(2)], each Cu(II) atom is chelated by the tridentate doubly deprotonated Schiff base and a pyridine mol-ecule in a nearly planar environment (r.m.s. deviation for all non-H atoms = 0.107 Å). The metal ions are bridged by one O atom from the symmetry-related Schiff base ligands, forming a centrosymmetric dinuclear copper(II) complex....

The structure of the dinuclear title complex, [Cu2(C10H8N7)2(NO3)2(H2O)2]·2H2O, consists of centrosymmetric dimeric units with a copper-copper separation of 4.0408 (3) Å. The Cu(II) ions in the dimer display a distorted octa-hedral coordination geometry and are bridged by two triazole rings, forming an approximately planar Cu2N4 core (r.m.s. deviation = 0.049 Å). In the crystal, O-H⋯O, O-H⋯N an...

The title compound, [Co2(C8H7O2)4(C7H10N2)2], crystallizes as a centrosymmetric dimer containing two Co(II) atoms bridged by four bidentate phenyl-acetate ligands in syn-syn bridging modes. Each Co(II) atom is five-coordinated by four O atoms from four different carboxyl-ate ligands and the ring N atom of a 4-(di-methyl-amino)-pyridine unit, generating a distorted square-pyramidal geometry in w...

Two structurally characterized dinuclear valence tautomers are described. Cobalt ions are bridged by p- and m-phenylene units connected to 2,2'-bipyridines. X-ray crystal structures show that the molecules are in the [(Co(III))(Co(III))] forms at ca. 125 K, while spectroscopic studies show that both molecules can achieve the [(Co(II))(Co(II))] form above 400 K and confirm the [(Co(III))(Co(III)...

The hexanuclear gold carbonyl cluster [PPh4]2[Au6(CF3)6Br2(CO)2] (4) has been obtained by spontaneous self-assembly of the following independent units: CF3AuCO (1) and [PPh4][Br(AuCF3)2] (3). The cyclo-Au6 aggregate 4, in which the components are held together by unassisted, fairly strong aurophilic interactions (Au···Au ∼310 pm), exhibits a cyclohexane-like arrangement with chair conformation....

The title compound, [Pb(2)(C(7)H(5)O(2))(2)(NO(3))(2)(C(12)H(8)N(2))(2)(H(2)O)(2)], crystallizes as a dinuclear centrosymmetric dimer containing two Pb(II) atoms bridged by two benzoate ligands. Each Pb(II) atom is seven-coordinated by a water mol-ecule, a nitrate anion, a 1,10-phenanthroline (phen) ligand and two benzoate anions. The crystal packing is stabilized by O-H⋯O hydrogen bonds and by...

Dinuclear Nickel(II) Complex, Binucleating Ligand The asymmetric unit of crystal of the title compound, [Ni2(L)(C3H 3N2)j (L = 1,3-Bis(2hydroxy-4-methoxybenzylideneamino)propan-2-ol, C3H 3N 2 = pyrazolate) contains two inde­ pendent dinickel(II) complexes. In both molecules, the nickel(II) ions are bridged by the alkoxo group of the ligand and the N atoms of the pyrazolate group. Each nickel(II...

The mono- (1) and dinuclear (2) ruthenium(II) bis(2,2'-bipyridine) complexes of 2,5-di(pyridin-2-yl)pyrazine (2,5-dpp), for which the UV/Vis absorption and emission as well as electrochemical properties have been described earlier, are reinvestigated here by resonance, surface enhanced and transient resonance Raman spectroscopy together with selective deuteration to determine the location of th...