Showing papers in "Polyhedron in 2008"

TL;DR: In this article, X-ray diffraction (XRD) analysis revealed broad pattern for fcc crystal structure of copper metal and particle size by use of Debye-Scherrer's equation was calculated to be about 40nm.

TL;DR: In this paper, the authors reported on the synthesis of Mn 3 O 4 nanoparticles using thermal decomposition and their physicochemical characterization using [bis(salicylidiminato)manganese(II)] as a precursor.

TL;DR: In this paper, the results obtained are discussed in terms of the interactions between cations and anions of the ionic liquid and the water molecule, and the data collection reported is helpful for a variety of different technological applications and in particular for electrochemical applications, as capacitors, batteries and fuel cells.

TL;DR: In this article, six ternary I±-amino acid copper(II) complexes of the general formula Cu(AA)(B)(H 2O)(X) (1-6) have been synthesized, characterized, and their DNA binding and cleavage activity studied.

TL;DR: Ru2(dNSAID)4Cl] and novel [Ru2d NSAID4(H2O)2] PF6 complexes, where dNSAID =deprotonated carboxylate from the non-steroidal anti-inflammatory drugs (NSAIDs), respectively: ibuprofen, Hibp (1) and aspirin, Hasp (2); naproxen, Hnpx (3) and indomethacin, Hind (4), have been prepared and characterized by optical spectroscopic methods as mentioned in this paper.

TL;DR: The mononuclear complex of the second-generation quinolone antibacterial agent ciprofloxacin with UO 2 2 + has been prepared and characterized with physicochemical and spectroscopic techniques as discussed by the authors.

TL;DR: Two new Cd(II) complexes, having one binuclear structure [Cd2(L)2(Cl)2] (1) and another azido bridged one-dimensional zig-zag polynuclear network, have been synthesized from a tridentate N2O donor base ligand LH, which is the condensation product of 2-hydroxy-4methoxybenzaldehyde and 2-diethylaminoethylamine as discussed by the authors.

TL;DR: In this paper, two new end-on azido bridged dinuclear copper(II) and cobalt(III) hydrazone complexes derived from an aliphatic hydrazide were reported.

TL;DR: In this article, the IR spectrum of a hexadentate Schiff base compartmental ligand N,N′-o-phenylenebis(3-ethoxysalicylaldimine) (H2L1) has been characterized from its IR spectrum as an inclusion product.

TL;DR: In this paper, the authors synthesize Zn(II) and Co-II complexes of 3-nitro-4-hydroxybenzoic acid, determine their structures through X-ray crystallography, and obtain their anticonvulsant activities.

TL;DR: SBNBODTC as mentioned in this paper is a disubstituted dithio-carbazate oxygen-sulfur (OS) donor ligand derived from reaction of S-benzyl dithiocarbazate with benzoyl chloride, formed bis-chelated complexes of general formula [M(OS)2] where M is Cu2+, Ni2+, Cd2+, Co2+ or Pb2+ and OS is a uninegative bidentate ligand.

TL;DR: In this paper, two bidentate Schiff bases have been synthesized by reaction of S-benzyldithiocarbazate with 2-acetylthiophene and 3acetyl thiophene.

TL;DR: In this paper, five new mixed ligand coper(II) complexes have been synthesized and characterized by means of elemental analysis, FAB mass spectrometry, magnetic susceptibility, X-band EPR, electronic spectroscopy, IR and cyclic voltammetry.

TL;DR: Three copper(II) Schiff-base complexes, [Cu(L1)(H2O)](ClO4) (1), [cu(L2)] (2) and [Cu (L3)] (3), have been synthesized and characterized by single crystal X-ray diffraction analysis.

TL;DR: In this article, the effectiveness of M-NHC catalysts in reactions that specifically utilize carbon monoxide as a C1-carbon source is discussed. But the authors focus on the NHC-based catalysts and highlight reactions in which the ancillary NHC ligand is beneficial, detrimental, ineffective or inconclusive in promoting the desired chemistry.

TL;DR: In this article, seven novel metal complexes of the second-generation quinolone antibacterial agent enrofloxacin with Mn2+, Fe3+, Co2+, Ni2+ Ni2+, Zn2+, Cd2+ and UO 2 2 + have been prepared and characterized with physicochemical methods and infrared, UV-Vis and nuclear magnetic resonance spectroscopies.

TL;DR: In this article, the synthesis and spectral characterization of palladium-II and zinc-II complexes with 2-formyl pyridine N(4)-1-(2-pyridyl)-piperazinyl thiosemicarbazone was presented.

TL;DR: In this paper, three complexes of picolinamide (pyridine-2-carboxamide, pia) and metal thiocyanates, M(SCN)2, (M ǫ = Zn, Cd, Hg), namely two polymorphs of bis(picolinamide-N,O)-bis-(thIocyanato-N)zinc(II) (1a and 1b), catena-[bis(μ-thiocynato-S,N)-picolinam-N-O-c

TL;DR: In this article, two ferrocenyl chalcones containing the anthracenyl group, Fc-COCH CH-Anth (Fc-Anth) and Anth-CoCH CH -Fc (Anth-Fc), were prepared by solvent-free aldol condensation using acetylferrocene/9-anthraldehyde and 9-acetylanthracene/ferrocenecarboxaldehyde, respectively.

TL;DR: The complex-forming properties of monoethyl 8-quinolylmethylphosphonate towards palladium(II) ion have been investigated by reactions of the hydrochloride, 8-Hmqmp·HClCl·H2O, and sodium salt, Na(8-mqMP)·2H 2O, of this monoester with palladium halide compounds in aqueous solution over a wide pH range as mentioned in this paper.

TL;DR: In this paper, twelve ruthenium(III) complexes bearing amine-bis(phenolate) tripodal ligands of general formula [Ru(L 1 −L 3 )(X)(EPh 3 ) 2 ] (where L 1 -L 3 are dianionic tridentate chelator) have been synthesized by the reaction of ruthensium (III) precursors.

TL;DR: Cobalt(II) (1) and cobalt(III) (2) complexes of tridentate ligand, imidazole terpyridine (Itpy), have been synthesized and characterized by both spectroscopic and electrochemical techniques as discussed by the authors.

TL;DR: In this paper, six new diorganotin(IV) complexes of the type (R2Sn)2L have been obtained by the reaction of new hexadentate diacylhydrazone ligands in the presence of sodium ethoxide.

TL;DR: In this article, the synthesis and characterization of Co(II), Ni(II) and Cu(II)-complexes of 2-acetyl-2-thiazoline hydrazone (ATH) are reported.

TL;DR: In this article, the reaction of 2-acetylpyridine semicarbazone (H2APS), 3-acetelpyridine semicarazone(H3APS), 4-acetylonpyride semicaridine semicarizone (h4APS), and 4-acylpryidine semicarmazone with acetonitrile gave [VO(acac)2] (acac = acetylacetylacetonate) gave [V2(2APS) 2] (1, VO(H2

TL;DR: In this article, the crystal structures of Pd and Pt complexes of a (Se, N, O−) ligand were solved and the C-Se-C bond angles in L1 and L2 have been found to be around 99°.

TL;DR: In this article, an X-ray crystallographic structure determination of the [Ni(isa-sme)2] · MeCN complex reveals a six-coordinate, distorted octahedral geometry.

TL;DR: In this paper, nine new compounds, namely [CuL1(biim-6)]· H2O (1), [ZnL3(biIM-6)· H 2O (2), [MnL1-biim-(1,4-butanediyl)bis(imidazole), biim-4, biim5, biIM-5, and biim6, were successfully synthesized.

TL;DR: A series of novel unsymmetrical dicompartmental binuclear nickel(II) complexes have been prepared by simple Schiff base condensation of the compound 1,8-[bis(3-formyl-2-hydroxy-5-methyl)benzyl]-l,4,8,11-tetraazacyclotetradecane L with appropriate aliphatic or aromatic diamine, nickel (II) perchlorate and triethylamine as mentioned in this paper.

TL;DR: A series of unsymmetrical dicompartmental binuclear copper(II) complexes have been prepared by the simple Schiff-base condensation of the compound 1,8-[bis(3-formyl-2-hydroxy-5-methyl)benzyl]-l,4,8,11-tetraazacyclotetradecane (L) with the appropriate aliphatic or aromatic diamines, copper (II) perchlorate and triethylamine All the complexes were characterized by elemental and spectral analysis.