Hexafluorophosphate salts of mononuclear complexes [Ru(II)Cl(L)(terpy)]+ (L = dmbpy (1); dpbpy (2), sambpy (3), and dpp (7), and binuclear complexes [Ru(II)2Cl2(dpp)(terpy)2]2+ (8) and [Ir(III)Ru(II)Cl2(dpp)(terpy)2]3+ (9) were prepared and characterized. Abbreviations of the ligands are bpy = 2,2'-bipyridine, dmbpy = 4,4'-dimethyl-2,2'-bipyridine, dpbpy = 4,4'-diphenyl-2,2'-bipyridine, dpp = 2...

Z. Naturforsch. 2011, 66b, 894 – 898; received June 19, 2011 Assembly reaction of copper(I) chloride, 2,2′-bipyridine-3,3′-dicarboxylic acid (H2L) and 2,2′-bipyridine results in the formation of a new complex [Cu2(C12H6O4N2)2(2,2′-bipy)2] ·CH3OH (1). In 1, two L2− ligands link two Cu(II) ions to form a dinuclear structure. The electrochemical and magnetic properties of 1 were investigated. The ...

Understanding the formation of metal-molecule contact at microscopic level is key towards controlling and manipulating atomic-scale devices. Employing two isomers bipyridine, $4,{4}^{\ensuremath{'}}$ bipyridine $2,{2}^{\ensuremath{'}}$ between gold electrodes, here, we investigate a bond by studying charge transport through single molecular junctions using mechanically controlled break junction...

A novel heteroleptic ruthenium complex carrying a heteroaromatic-4,4'-pi-conjugated 2,2'-bipyridine [Ru(II)LL'(NCS)(2)] (L = 4,4'-bis[(E)-2-(3,4-ethylenedioxythien-2-yl)vinyl]-2,2'-bipyridine, L' = 4,4'-(dicarboxylic acid)-2,2'-bipyridine) was synthesized and used in dye-sensitized solar cells, yielding photovoltaic efficiencies of 9.1% under standard global AM 1.5 sunlight.

Two heteroleptic nickel oxothiolate complexes, namely [Ni(bpy)(mp)] (1) and [Ni(dmbpy)(mp)] (2), where mp = 2-hydroxythiophenol, bpy 2,2?-bipyridine dmbpy 4,4?-dimethyl-2,2?-bipyridine were synthesized characterized with various physical spectroscopic methods. Complex 2 was further by single crystal X-ray diffraction data. The complex crystallizes in the monoclinic P 21/c system its neutral for...

A new catalytic system has been developed for hydrogen production from various monosaccharides, mainly glucose, as a starting material under reflux conditions in water the presence of water-soluble dicationic iridium complex bearing functional bipyridine ligand. For example, reaction D-glucose 20 h [Cp*Ir(6,6′-dihydroxy-2,2′-bipyridine)(H2O)][OTf]2 (1.0 mol %) (Cp*: pentamethylcyclopentadienyl,...

Cationic tetranuclear arene ruthenium complexes of the general formula [Ru4(p-cymene)4(N N)2(dhnq)2] comprising rectangular structures are obtained in methanol from the reaction of the dinuclear arene ruthenium precursor [Ru2(p-cymene)2(dhnq)2Cl2] (dhnq = 5,8-dihydroxy-1,4-naphthoquinonato) with pyrazine or bipyridine linkers [N N = pyrazine, 1; 4,4 -bipyridine, 2; 1,2-bis(4-pyridyl)ethylene, 3...

The synthesis, structure, and photophysical properties of a new family of trinuclear CuRe(2) chromophore-quencher complexes having the general form [Cu(pyacac)(2)(Re(bpy')(CO)(3))(2)](OTf)(2) (where pyacac = 3-(4-pyridyl)-acetylacetonate and bpy' = 4,4'-5,5'-tetramethyl-2,2'-bipyridine (tmb, 1), 4,4'-dimethyl-2,2'-bipyridine (dmb, 2), 2,2'-bipyridine (bpy, 3), 4,4'-dichloro-2,2'-bipyridine (dcl...