Showing papers in "Polyhedron in 2010"

TL;DR: In this paper, a one pot, multi-component CuAAC reaction has been developed for the generation of alkyl, benzyl or aryl substituted bi and tridentate pyridyl-1,2,3-triazole ligands from their corresponding halides, sodium azide and alkynes in excellent yields.

TL;DR: In this paper, the synthesis of manganese oxide (Mn3O4) nanoparticles by using thermal decomposition and its physicochemical characterization are being reported, where a new precursor, [bis(2-hydroxy-1-naphthaldehydato)manganese(II)] complex was used in the presence of oleylamine (C18H37N) as both surfactant and solvent to control the resulting nanoparticle.

TL;DR: The results suggest that the two designed copper(II) complexes can bind to DNA by non-intercalative modes and exhibit nuclease activities in which supercoiled plasmid DNA is converted to the linear form.

TL;DR: The complexes [RuCl2(PPh3)3] with pyridine, γ-picoline, 2-(aminomethyl)pyridine and 2-(hydroxymethyl)pyrimidine in methanol solutions have been calculated using the DFT/TD-DFT method as discussed by the authors.

TL;DR: In this article, the crystal structure of 1-phenyl-2,3-dimethyl-4-(N-3-formyl-6-methyl-chromone)-3-pyrazolin-5-one (HL) has been determined by X-ray diffraction studies, as well as the one of its copper(II) complex [CuL(OAc)]·CH3OH which contains an anionic ligand and an acetate in the coordination sphere of the metal.

TL;DR: Results of a comparative study on the cytotoxicity, cellular and nuclear uptake of a series of chloro gold(I) phosphine complexes containing different ligands on the phosphor indicate a positive influence of larger and more lipophilic substituents.

TL;DR: In this paper, the condensation of 4-amino-1,2,4-triazole with N-substituted-3-formyl-4-hydroxyquinolin-2-(1H)-one derivatives has lead to the synthesis of a new series of quinolin 2(1H) derived Schiff base ligands (1−3).

TL;DR: Penta-coordinated mononuclear copper(II) complex of tridentate 2,6-bis-(benzimidazolyl)pyridine (L) formulated as [Cu(L)(H2O)2](NO3)2, 1 was synthesized and isolated in pure form as discussed by the authors.

TL;DR: In this article, the tridentate mono-condensed Schiff bases N-methyl-N′-(1-pyridin-2-yl-ethylidene)-propane-1,3-diamine (L1) and N,N-diethyl-n′-( 1-polycyclic pyrocyclic polyethylene)-ethane (1, 2-diminoethane) with 2-acetylpyridine (L2) were shown to contain both thiocyanate and coordinated water.

TL;DR: In this article, the synthesis and catalytic performance of novel cis-dioxo-Mo(VI) complexes containing simple ONO tridentate Schiff base ligands in the epoxidation of various olefins using tert-butyl hydroperoxide in desired times with excellent chemo- and stereoselectivity have been described.

TL;DR: The crystal structures of the zinc complexes (Zn2L14 and Zn2l24) are also reported in this article, showing the presence of distorted trigonal bipyramidal and tetrahedral coordination geometry about the metal ions.

TL;DR: In this article, a mixed ligand silver(I) complexes of triphenylphosphine and thioureas with the general formulae, [(Ph3P)2Ag(thione)]NO3 and [(Ph 3P)Ag (thione)2]NO3, have been prepared and characterized by elemental analysis, IR and NMR spectroscopic methods.

TL;DR: In this paper, a synthetic route to new square planar cobalt complexes with redox-active amidophenolate chelates is presented, but steric bulk on the ligands is not a prerequisite to formation of the low-coordinate materials.

TL;DR: A series of novel hemi-disclike four coordinated distorted square planar Zn(II) Schiff base complexes containing 4-substituted alkoxy chains on the side aromatic ring [Zn (4−C n H 2 n +1 O) 2 salophen], n  = 14, 16, 18 and salophen Â= N, N '-4-methyl phenylene bis (salicylideneiminato), have been prepared and their mesogenic, photophysical properties were investigated.

TL;DR: In this paper, a mixture of nanocrystalline ZrO 2 monoclinic and tetragonal phase structures were synthesized through arc discharge of zirconium electrodes in deionized (DI) water.

TL;DR: In this article, a hexagonal tungsten oxide nanorods have been synthesized by hydrothermal strategy using Na 2 WO 4 ·2H 2 O as source, aniline and sulfate sodium as structure-directing templates.

TL;DR: In this article, diamides of 2,2′-bipyridyl-6,6′-dicarboxylic acid were developed, synthesized and characterised.

TL;DR: The synthesis and characterization of palladium(II) and platinum (II) complexes of isomeric bidentate 2-pyridyl-1,2,3-triazole "click" ligands is reported in this article.

TL;DR: The catalytic activity of the palladium species explored in the Mizoroki-Heck and Suzuki-Miyaura cross coupling reactions was investigated in this article, where the catalytic properties of the POCOP pincer compounds were investigated.

TL;DR: In this paper, two new Pb(II) three-dimensional coordination polymers, [Pb 2 (4-pyc) 2 I 2 (H 2 O)] n ( 1 ), {4-Hpyc ǫ= 4-pyridinecarboxilic acid} and [Pm 3 pyc Iǫ] n ( 2 ), {3hpyc ë= 3-polycyclic acid} were synthesized by sonochemical method and characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and

TL;DR: In this paper, four coordination compounds were synthesized in high yields from different transition metal ions (FeIII, CoII, and CuII) and an in situ generated Schiff-base ligand, i.e. 2-methoxy-6-((quinolin-8-ylimino)methyl)phenol (mqmpH).

TL;DR: The use of carboxylates in the synthesis of 3d/4f clusters, with or without a second organic ligand, has afforded a series of tetranuclear M2Gd2 complexes as mentioned in this paper.

TL;DR: In this paper, a triclinic centrosymmetric space group (P 1 ¯ ) was used for the characterization of 4-NH2PyH (abbreviated as 4APCB) in halobismuthate(III) solid complexes.

TL;DR: In this article, three zinc(II) nitrite coordination polymers, [Zn(4-bpdb)(NO2)2]n (1), {[Zn[3-bpdh]-n (2)]·0.5H2O}n (3), 4-BPdb = 1,4-bis(4)-pyridyl)-2,3-diaza-1,3butadiene, 3-bpdc = 1.4-bi(3-pyridsyl)-3,4dia

TL;DR: In this article, the synthesis of tetra-substituted cobalt phthalocyanine (CoPc) complexes with diethylaminoethanethio at the peripheral and non-peripheral positions, and with benzylmercapto at the non-paripheral position (complex 5 ), are reported.

TL;DR: A series of vanadium(V) complexes with unsymmetrical tridentate Schiff base ligands, obtained by the single condensation of R (−)-1,2-diaminopropane with salicylaldehyde and its derivatives, were prepared by elemental analysis and by their IR, CD, UV-Vis, 1D ( 1 H, 51 V) and 2D (COSY, NOESY, gHSQC) NMR spectra as mentioned in this paper.

TL;DR: In this article, the properties of tetrapyrrolidinophosphazenes (1b, 2b, 3b, and 3c) were examined by Fourier transform IR, MS, 1H, 13C, 31P NMR, DEPT, HETCOR, and HMBC techniques.

TL;DR: Two new group 4 initiators based on N,N′-Bis(2-hydroxybenzyl)ethylenediamine have been prepared and fully characterised via multi-nuclear NMR spectroscopy and single crystal X-ray diffraction studies.

TL;DR: In this paper, three isonicotinamide (isn) copper(II) complexes with different bridging ligands, azide, thiocyanate and sulfate, have been prepared.