In the title mixed-ligand silver(I) coordination polymeric complex with the non-steroidal anti-inflammatory drug diclofenac (C14H11Cl2NO2) (diclH) and pyrimidine (pym), namely poly[{μ2-2-[2-(2,6-di-chloro-anilino)phen-yl]acetato-κ2O:O'}(μ2-pyrimidine-κ2N1:N3)silver(I)], [Ag(C14H10Cl2NO2)(C4H4N2)] n or [Ag(μ-dicl)(μ-pym)] n , the very distorted tetra-hedral AgN2O2 coordination centres comprise t...

Silver(I) complexes of several thiolates have been prepared. These complexes have been characterized by elemental analysis and 13C NMR spectroscopy. All the Ag(I)-thiolate complexes are polymeric in nature. Therefore, 13C CP MAS NMR is being used extensively to analyze the binding site of the ligand and the nature of complexation. A significant shift difference was observed for S binding site w...

The syntheses of a novel hydroxyl-functionalized tetradentate NHC/pyridine hybrid ligand and the corresponding Ag(i) and Fe(ii) complexes are presented. Spectroscopic and X-ray diffraction techniques are used for structural investigations and cyclic voltammetry measurements reveal interesting electronic properties. Transmetalation of the trinuclear Ag(i) complex (C1) yields a mononuclear and a ...

The synthesis and analytical applications of the new heterocyclic ligand are described. The complexation reaction of the ligand with some cations was studied in aqueous methanol at room temperature using the spectrophotometric method. Results revealed that only the absorption spectra of the Fe (III)–ligand complex show a high redshift of the absorption maximum in the aqueous methanol soluti...

The dinuclear title complex, [Ag(2)Cl(2)(CH(5)N(3)S)(2)(C(18)H(15)P)(2)], lies across an inversion center. The Ag(I) ion exhibits a slightly distorted tetra-hedral coordination geometry formed by a P atom from a triphenyl-phosphane ligand, two metal-bridging S atoms from thio-semicabazide ligands and one chloride ion. The S atoms bridge two symmetry-related Ag(I) ions, forming a strictly planar...

We report on the tetraruthenium macrocycles Ru4-5 and -6 with a π-conjugated pyrene-appended 5,8-divinylquinoxaline ligand either isophthalate or thiophenyl-2,5-dicarboxylate linkers their charge-transfer salts formed by oxidation two equivalents of F4TCNQ. Both macrocyclic complexes were characterized NMR spectroscopy, mass spectrometry, cyclic square-wave voltammetry, IR, UV–vis–NIR, EPR spec...

The sandwich-shaped heterotopic trinuclear Ag+ complex Ag(3)1.2 was exclusively formed from two different tris(thiazolyl) and hexa(thiazolyl) disk-shaped ligands, 1 and 2, with the aid of three Ag+ ions. The variable-temperature 1H NMR study on its complexation behavior revealed that metal-ligand exchanges between the two neighboring thiazolyl nitrogen donors of 2 take place at the three Ag+ ce...

Abstract Isolation of E -1,2-bis(4-bromophenyl)-1,2-diphenyl-ethylene from the E/Z isomer mixture obtained by a McMurry coupling reaction and this with imidazole followed N -alkylation n BuBr anion exchange yielded bisimidazolium tetraphenylethylene (TPE) derivative H 2 - 1 (PF 6 ) . The Ag O di-nuclear metallarectangle [Ag ( ](PF where two bis-NHC donors bridge silver atoms. Irradiation leads ...

Thermodynamic parameters of complex formation between d(10) metal ions, such as Zn(2+), Cd(2+), Hg(2+) and Ag(+), and the macrocyclic thioether 1,4,7-trithiacyclononane ([9]AneS3) or the monodentate diethylsulfide (Et(2)S), in acetonitrile (AN) at 298.15 K, were studied by a systematic methodology including potentiometry, calorimetry and polarography. [9]AneS3 is able to form complexes with all...