Showing papers in "Polyhedron in 2005"

TL;DR: A brief survey of single-molecule magnets (SMMs) or molecular nanomagnets can be found in this paper, where several representative examples of new synthetic procedures and the resulting products are described.

TL;DR: The coordination chemistry of tripodal tetrammine ligands is reviewed in this paper, with emphasis being placed on structural features of the resulting metal complexes, and references to methods for the synthesis of these ligands, and the coordination chemistry with both transition metals and lanthanide ions is detailed.

TL;DR: In this article, two new mononuclear nickel (II) complexes incorporating Schiff base ligands, bis(N-R-1-phenylethyl- or N-2-propyl-3,5-dichlorosalicydenaminato)nickel (II), have been synthesized and characterized.

TL;DR: In this paper, the tetradentate pyridyl di-Schiff base ligands N,N′-bis-(1-pyridin-2-yl-ethylidene)-propane-1,3-diamine (L1) and N, N′-bi-bis(1pyride-di-Schifield-2,yl-methylidene) (L2) to a cadmium(II) center were shown to have interesting structural deviations from regular octahedral geometry in the resulting hex

TL;DR: In this article, the diameters of these particles were estimated from the X-ray diffraction patterns as ranging from 3 to 30 nm, and the particle sizes were controlled through the annealing conditions and by the Si concentration of the solutions.

TL;DR: In this paper, the 1:2 mononuclear complex with triethylamine was shown to be a dinuclear complex, which is the first example of uranyl-bridging by methoxide ions to be crystallographically characterized.

TL;DR: In this article, the EPR spectra of the bis(1-n-butylamidino-O-alkylurea)copper(II)chloride complexes were analyzed and the bonding parameters of these complexes in MeOH were calculated.

TL;DR: In this article, the luminescence efficiency of the ruthenium(II) complexes was explained based on the ligand environment around the metal ion, and the formation of high valent RuIV O species as a catalytic intermediate is proposed for the catalytic process.

TL;DR: In this paper, a new dicompartmental ligand, N,N′-bis[2-iminomethyl-4-methyl-6-(4methylpiperazin-1-ylmethyl)1,8,naphthalene (H2L) possessing contiguous tetra-and hexadentate coordination sites has been synthesized in simple route by the Schiff's base condensation of the precursor compound (PC) 2-formyl, 4-methyl, 6[4- methyl-6]-4-polyphenol with 1

TL;DR: In this paper, the molecular structures of binuclear complexes with pyridyl nitrogens, azomethine nitrogen and thiolate sulfur were resolved by single-crystal X-ray diffraction studies.

TL;DR: In this article, a 1:1:1 mole ratio was obtained for N3/NH4NCS in the presence of chelating ligands, and the resulting complexes were reduced to [Cd(bpbp)2]ClO4 by ascorbic acid.

TL;DR: In this paper, a pentagonal bipyramidal geometry is described for AgNO3 and its coumarin-based ligands, which exhibited good anti-microbial activity, particularly against the clinically important methicillin-resistant Staphylococcus aureus (MRSA) bacterium.

TL;DR: In this paper, the 2-thiosemicarbazido-1,4-naphthoquinone (NQTSC) was shown to act as both a neutral and a mono-anionic tridentate ligand, bonding through thione, thiol or both as observed in the case of iron(III) and cobalt (III) complexes.

TL;DR: In this article, the cyclometallated ligand 2-(4′,6-difluorophenyl)-4-methoxypyridine (F2MeOppyH), whose complexes with iridium(III) emit bright blue to green light, was synthesized in five separate steps.

TL;DR: In this article, an axial spin-Hamiltonian was used to simulate a four-line pattern with nitrogen super-hyperfine couplings originating from imine/hydrazinic nitrogen atoms.

TL;DR: The binuclear vanadium vanadium (V) compound was determined by X-ray diffraction methods as mentioned in this paper, and the structure of the vanadium compound was analyzed using the infrared and Raman spectra.

TL;DR: In this article, the N-O groups from dpk bridged the central nickel(II) ion and terminal lanthanide(III) ions, giving a linear trinuclear array.

TL;DR: In this paper, the results of the reaction of the [MoO2(acac)2] (acetylacetonate ligand, acac−, C5H7O2−) with 1 (salicylaldehyde 4-methylthiosemicarbazone ligand).

TL;DR: In this paper, structural features, electronic properties, thermally-induced structural phase transitions and absorption spectra depending on the solvent for ten Cu(II) complexes with 3,5-halogen-substituted Schiff base ligands were systematically investigated.

TL;DR: In this article, three interpenetrated polymeric networks have been constructed by hydrothermal reactions of 1,3-bis(4-pyridyl)propane (bpp), 5-hydroxyisophthalic acid (OH-H2BDC), with Co(NO3)2·6H2O, Ni(NO 3)2−6H 2O and Cd(NO 2·4H 2

TL;DR: In this paper, a series of primary ferrocenyl alcohols, Fc-CH2m-m-OH with m = 1-4 and Fc −(CH2n)-COOH with n = 0-3, was synthesised by reduction of the appropriate ferroenylcarboxylic acids, F c−(CH 2n)-cOOH (n = 0 −3) and the ester methyl 4-ferrocenylicbutanoate with LiAlH4, and the reduction of Fc−CO−

TL;DR: In this article, the synthesis and characterization of the gold(III) complexes (HSDT)AuX2] and HSDT)2Au]X (X = Cl, Br; HSDT = sarcosinedithiocarbamate (N-methylglycinedithiamine) are reported.

TL;DR: In this paper, the tridentate ligands, bis(2-hydroxy-3,5-dimethylbenzyl)methylamine (H2ONOMe) and bis(3-tert-butyl-5-methylbenzinylmethyamine (MTHM), were used to catalyse oxotransfer reactions between DMSO and benzoin or triphenyl phosphine.

TL;DR: In this paper, the electronic and spin structures of tetranuclear manganese clusters were investigated using the classical and quantum Heisenberg models using the molecular orbital calculations by the use of general spin orbitals (GSO).

TL;DR: In this article, the molecular structures of molybdenum-VI complexes of the type [MoO2{C6H4(O)CH:NNHC(S)NH} (CH3OH)] were characterized by means of chemical and thermogravimetric analyses and IR spectroscopy.

TL;DR: In this article, two new cadmium-II-terephthalate complexes were synthesized by a conventional solution method, which are composed of 1-D polymeric zig-zag chains with distorted pentagonal-bipyramidal Cadmium centers.

TL;DR: In this article, two new neutral trinuclear oxo-centered complexes, [Fe3(μ3-O)(O2CPh)5(salox)L1L2] [L1=L2-MeOH (1), L1=EtOH, L2=H2O (2)] are reported.

TL;DR: In this paper, the formation of transition metal complexes between dichlorocopper and a poly(4-vinylpyridine)/divinylbenzene(2%) polymeric matrix is described.

TL;DR: Pyridyl functionalized molecular diketonates were employed for modular construction of Cd(Zn)/Be alternating coordination polymers as mentioned in this paper, which revealed a structural diversity of the heterobimetallic compounds, such as H-bonded molecular complex.

TL;DR: In this paper, a series of 2-phenylbenzothiazolato (bt)/substituted 2-paraboloid (X-bt)Pt(acac) based square-planar complexes are discussed.