Showing papers in "Inorganica Chimica Acta in 1999"

TL;DR: Two new compounds, helicin (i.e. salicylaldehyde-β-d -glycoside) thiosemicarbazone monohydrate, Het·H2O (1), and bis[aqua(salicylalde thiOSEmicarbazonato)copper(II)]sulfate bisdimethylsulfoxide solvate hexahydrate [Cu(Hsalt)(OH2)]2SO4

TL;DR: In this article, the synthesis and structural characterisation of [Cu(4,4%-bipyridine)X], X Br (1), I (2), [cu(bpe)2]-BF4·MeCN (3), bpe1,2bis(4-pyridyl)ethene, [Ag(bpp)](NO3 )( 4), bpp1,3-bis( 4-polycycled polycyclic benzene)propane, and [H2bpeb](NO3)2 (5

TL;DR: The title compounds were obtained by reaction of Zr ( O n Pr ) 4 ) with an excess of the corresponding acids and analyzed by single crystal X-ray diffraction as mentioned in this paper.

TL;DR: In this article, a low-spin (LS)↔high spin (HS) conversion centered at T 1/2 around 180 and 224 K for 1 and 2, respectively.

TL;DR: In this article, a review of the results concerning the synthesis, structural features and magnetic properties of all the organic-inorganic iron phosphates with a three-dimensional open framework is presented.

TL;DR: In this paper, the X-ray structure of two examples of i Pr 2 P(E)NHP(E′) i Pr2 (E, E′=Se, E,E′=O) are reported.

TL;DR: In this paper, the reduction of Pd(II) to pd(0) was investigated in the presence of both monodentate (PPh3) and bidentate (dppp=1,3-bis(diphenylphosphino)propane) phosphines.

TL;DR: In this paper, the trans-Pt(Ypy)2X2 complex was studied by spectroscopic methods, especially by multinuclear NMR spectroscopy, and the results showed that the iodo ligand has the greatest trans influence.

TL;DR: In this article, the key Na-birnessite precursor is prepared by oxidation of Mn(OH) 2 with K 2 S 2 O 8 in aqueous NaOH.

TL;DR: In this paper, the complexation of trivalent lanthanides with aromatic carboxylic acids was studied by luminescence and absorption spectroscopic methods and luminecence lifetime measurements and the stability constants with these carboxylate ligands were calculated from the 7 F 0 − 5 D 0 excitation spectra of Eu(III).

TL;DR: In this paper, the synthesis, crystal structure and magnetic properties of dinuclear [Mn(III)(salen)(H2O)]2(ClO4)2 (1) and polynuclear [mn[III]-salen(NO3)]n (2) (salen=N,N′-bis(salicylideneaminato)ethylene) are reported.

TL;DR: A range of mostly new oxovanadium(IV) complexes are described in this paper, which contain coordinated Schiff bases, made from natural amino acids (glycine, alanine, valine, leucine, isoleucine and methionine, phenylalanine, threonine, aspartic acid, and histidine) and salicylaldehyde or such derivatives as 3-, 4-, or 5-methoxy-salicyl-aldehyde.

TL;DR: In this article, the isocyanides CNC6H2R2-2,6-CHNOH-4 (1a-b) and CNC4R2H2H4N(2-C5H 4N)-4 (4b) were determined by X-ray crystallography.

TL;DR: In this paper, the pentamethylcyclopentadienyl complex [Cp*IrCl2]2 and the dilithium dithio-o-carborane salt, Li2[S2C2B10H10] (1), in THF affords the compound Cp*ICl2(S 2C 2B 10H10) (2) in good yield.

TL;DR: In this paper, a survey of uncharged transition-metal coordination complexes containing ancillary halide ligands has been carried out, in order to determine the dominant ionisation process(es).

TL;DR: The crystal and molecular structure of the copper(II) chain [Cu(bipy)Cl2] (1) (Bipy = 2,2′-bipyridine) has been determined by X-ray diffraction methods as discussed by the authors.

TL;DR: In this article, NQR spectra for three and four-coordinated borons are easily distinguished from each other and the fractions of boron in each coordination can be obtained.

TL;DR: Recently, the scope of organocopper chemistry has been broadened significantly by the development of 1,6-, 1,8-,1,10-, and 1,12-addition reactions, as well as of 1-5-substitution reactions of multiply unsaturated substrates which often contain at least one triple bond.

TL;DR: In this article, a series of mercury(II) compounds of the empirical formulae HgX2L, and Hg X2L2 (X=Cl−, Br−, I−, SCN−; L=imtH−, meimt−; imtH2=1,3-imidazole-2-thione, 1-methyl-1-3-IMidazile-2 -thione; meimTH=1-methyl1-dimethyl-1 -dimethyl1 -th

TL;DR: In this article, two lanthanide complexes with trimesic acid have been obtained and structurally characterised, which consist of an extended network of metal ions coordinated by trimesate ions.

TL;DR: In this paper, the coordination modes for the Ln-edta complexes depend not only on the ionic radii for the lanthanide ions but also on the sizes for the counter cations.

TL;DR: In this article, a new flexible aryl-heterocyclic tripodal ligand, 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene (titb) was prepared.

TL;DR: In this paper, a bridging tetranuclear titanium complex was obtained by exposing [Ti(OPri)2(BINOLato)] (2) to hydrated molecular sieves (MS) 4A, which is a precursor of active BINOLTi catalyst (1).

TL;DR: In this article, NMR spectroscopy was used to provide an equilibrium mixture of the solvent-coordinated complex [ cis -Re(CO) 4 (PR 3 )(ClCH 2 Cl)][MeB(C 6 F 5 ) 3 ] and the reactants.

TL;DR: In this paper, the effects of phosphine ligands and organochalcogenides are reflected in the 77 Se and 195 Pt NMR shifts and the shielding of 195 Pt chemical shifts has been interpreted in terms of their binding ability to platinum.

TL;DR: The difference between the formation and conversion processes of molybdophosphate and -arsenate complexes was elucidated in a 100 ǫmM Mo(VI)-0.5 m HCl system as a function of the P(V) or As (V) concentration as discussed by the authors.

TL;DR: In this article, two dinuclear copper(II) complexes of the formula [Cu2(phen)4(C4O4)](CF3SO3)2·· 3H2O (1) and [Cu 2(bipy) 4(C 4O4) (2) were synthesized and characterized by single-crystal X-ray diffraction.

TL;DR: In this paper, a triorganophosphine silver (I) adduct was synthesized from K[Tm], AgNO3 and tricyclohexylphosphine (PCy3).

TL;DR: The three-dimensional coordination polymer [Cd 2 (4,4′-bipy) 2 (H 2 O) 3 (SO 4 ) 2 ]·3 H 2 O (1 ) was synthesized by the hydrothermal reaction of 4, 4′-Bipyridine with CdSO 4 ·8/3H 2O in 1:1 mole ratio in a sealed tube at 120°C as discussed by the authors.

TL;DR: In this paper, the scope of boron-containing cluster compounds, their importance, short history, and the progress in measuring 11B NMR spectra are discussed. And the IGLO method for the calculation of 11B and 13C NMR shifts is discussed.