Showing papers in "Inorganica Chimica Acta in 2002"

TL;DR: In this paper, a refined q-value equation was proposed to predict the number of water molecules in the first coordination sphere of a europium(III) (Eu3+) complex, q, in aqueous solution.

TL;DR: In this article, a linear correlation between non-relativistically calculated theoretical electron densities and experimentally measured ISs is established, and the calibration of two popular density functionals (B3LYP and BP86) for the prediction of isomer shifts (IS) in 57Fe Mossbauer (MB) spectra is reported.

TL;DR: The pKa values of curcumin and diacetylcurcumin are determined by means of spectroscopic and potentiometric measurements, and the enolic proton is the more acidic one.

TL;DR: In this paper, a group of dinuclear copper(II) complexes has been chosen to investigate their potential as catalysts for the aerial oxidation of 3,5-di-tert-butylcatechol (3,5)-DTBC) to 3, 5-DTBQ, and a new m-xylyl-based dinucleating ligand L4 is described.

TL;DR: The potentially tridentate ligand 2,6-bis[(methylimidazolium-1-yl)methyl]pyridine dibromide reacts readily with silver(I) oxide in dichloromethane or dimethylsulfoxide to give a dinuclear silver-I-carbene complex that was isolated as the tetrafluoroborate salt as discussed by the authors.

TL;DR: In this article, the interaction of these complexes with calf thymus DNA has been explored by using absorption, emission and circular dichroic spectral and electrochemical studies and viscosity measurements.

TL;DR: In this paper, the synthesis of tetra-, penta-and hexadentate bispidine ligands with two tertiary amine and two, three or four additional donors (pyridine, phenolate or alcoholate) is described.

TL;DR: The Nhexadecylpyridinium derivatives [C16Py]2[MCl4] (M=Cd (1), Zn (2)) were prepared and structurally characterized by X-ray diffraction methods as discussed by the authors.

TL;DR: Two polypyridyl cobalt(III) complexes containing intramolecular hydrogen-bond [Co(phen)2HPIP]3+ (HPIP=2-(2-hydroxyphenyl)imidazo[4,5-f][1,10]phenanthroline) and as discussed by the authors have been synthesized and characterized by UV-Vis, EA and MS spectra.

TL;DR: In this paper, the crystal structures of four polymeric complexes were determined by single-crystal X-ray diffraction and the results showed significant effect of pH on the formation of the network structures.

TL;DR: In this paper, the reaction of Cu2CO3(OH)2, various N-substituted-iminodiacetic acids and adenine (AdeH) in water yields crystalline samples of mixed-ligand copper(II) complexes.

TL;DR: In this article, high-resolution transmission electron microscopy (HRTEM) studies of single wall carbon nanotubes containing nanocrystals of inorganic salts and other binary compounds show that the confining geometry of the host tubules substantially modifies the local structural and co-ordination properties of the inclusion materials.

TL;DR: In this paper, the rate of phosphate diester hydrolysis was studied as a function of catalyst and substrate concentrations and a mechanism for the reaction based on intramolecular hydroxide attack on the metal-coordinated phosphate is proposed.

TL;DR: In this article, the versatility of deprotonated thioureas as ligands is shown by the synthesis and characterisation of a range of rhodium(III) complexes with support from a ruthenium(II) analogue in one case.

TL;DR: In this paper, the bidentate ligand 1,2-bis(tetrazol-1-yl)ethane [endi] was synthesized and characterized by X-ray diffraction, NMR, IR and UV-Vis spectroscopy.

TL;DR: In this article, the tetrametallic tetrameric coordination compounds of general formula M(O,O′C12H6N2O2)3 (M=Ti (2); M=V (3)) were obtained from NH4PF6.

TL;DR: The assignments of key intermolecular proton–proton crosspeaks in the NOESY map between the fluoroquinolone and the duplex prove the existence of predominantly minor groove CFX–duplex interactions.

TL;DR: In this paper, the authors showed that the reaction of pyridine-2-thiol with AgBF4 and AgClO4 in MeCN gave rise to polymeric compounds.

TL;DR: In this paper, the authors reported LiI, NaI, KI, PbII, CoII, NiII, CuII, ZnII, CdII and HgII coordination compounds derived from thiabendazole [2-(4′-thiazolyl)benzimidazole (tbz)].

TL;DR: In this article, Sessler et al. investigated the coordination chemistry of expanded porphyrin systems, including those previously reported as having formed uranyl (UO2-2+) cation complexes.

TL;DR: In this paper, the solvatochromism of ruthenium(II) polypyridyl complexes was investigated in terms of their use in a dye-sensitized TiO 2 solar cell.

TL;DR: Two new dicyanamide bridged complexes, [Cu(μ1,5dca)2(phen)]n (1) and [Cd(μ 1,5-dca)-2(py)2]n (2) have been synthesized and their structures have been determined by X-ray crystallography diffraction as discussed by the authors.

TL;DR: Two dinucleating pyrazole ligands HL1 and HL2 bearing 1,4-diisopropyl-1,4,7-triazacyclononane (iPr2TACN) side arms in the 3 and 5 positions have been synthesized by multi-step synthetic procedures as mentioned in this paper.

TL;DR: In this paper, two new dipicolinate complexes, Ln2(dipic)3(H2O)3 (1) with Ln=La, Ce, Pr, Nd, Sm, and CeO6N3 (2), are described.

TL;DR: In this article, the steric effect of the ortho substituent on metal ion binding at the N1 site of pyridine derivatives was investigated and it was shown that steric effects of amino and methyl groups are equal.

TL;DR: In this article, the molybdenum-95 NMR and calorimetry data were used to investigate the stability of polyoxoanions in LiClO 4 and NaCl media.

TL;DR: In this article, 1-phenyl-1-hydroxymethylene bisphosphonate was used as a chelating agent for both Al(III and Fe(III) ions.

TL;DR: In this article, the properties of a tridentate ligand, methylamino-N, N-bis(2-methylene-4,6-dimethylphenol), H2L, with [O,N,O]-donor atoms are described.

TL;DR: In this article, the kinetics and mechanism of the hydrolysis of bis(4-nitrophenyl)phosphate and phenylphosphonate were studied in the presence of the dinuclear Ni 2+, Cu 2+, and Zn 2+ complexes of 1,1-[(1H-pyrazole-3,5-diyl)bis(methylene)]bis(octahydro-1H -1,4,7-triazonine) (LH).

TL;DR: In this paper, the structure of the Fe(III) core was characterized by spectroscopic methods and X-ray structure analysis for inhibitor substrate adducts of catechol 1,2-dioxygenases.