Showing papers in "Inorganica Chimica Acta in 1992"

TL;DR: A brief review of the mechanism of action of platinum antitumor drugs with the general formula cis-PtX2(NHR2)2 is presented in this paper.

TL;DR: The complex formation of the ligand cucurbituril with alkaline cations and other cations have been studied by means of solubility measurements in the presence of the salts in aqueous solutions at 25 °C.

TL;DR: In this article, the stability constants of DEHP with divalent and trivalent metal ions were determined by potentiometric and spectrophotometric measurements in KCl supporting electrolyte (0.100 M) at 25.0 °C.

TL;DR: In this article, electrospray mass spectra have been observed for a number of ionic inorganic and organometallic compounds in dichloromethane/methanol (1:10) solutions.

TL;DR: The ctystalline Group 14 metal bisamides Ge[N(SiMe3)2]2 (1) and Sn[ NC(Me) 2 (CH 2 ) 3 C Me2 ]2 (2) have been characterised by X-ray diffraction.

TL;DR: In this article, the synthesis and structural characterization of (NPr 4 ) 3 [MS 4 Cu 4 Cl 5 ] are given together with the connections which exist between open and closed cubane structures.

TL;DR: A series of divalent transition metal benzenesulfonates, M(C6H5SO3)2·6H2O where MMn, Co, Ni and Zn, have been prepared from reactions of metal salts and sodium benzenenulfonate in aqueous solution as mentioned in this paper.

TL;DR: Acyclic, potentially hexadentate (H4LAH4LD) or decadentate compartmental Schiff bases have been obtained by reaction in methanol of 2,3-dihydroxybenzaldehyde and 1,2-diaminoethane, 1,4-bis(3-aminopropyl)piperazine (H2LI) as mentioned in this paper.

TL;DR: In this article, conductometric, potentiometric and calorimetric titrations were performed to determine the stability constants of the alkali, alkaline earth and Ag(I) complexes with pentaethyleneglycol dimethylether, 18-crown-6 and the cryptand (222) in methanolic solutions.

TL;DR: In this paper, a series of bis(nitrile) complexes cis-and trans-Cl2Pt(NCR)2 has been prepared by either one of the two methods, K2PteCl4/H2O/ RCN(excess) or PtCl2/RCN(neat), both of which usually yield the nitrile complexes as a mixture of cis and trans isomers in different ratios depending on the experimental conditions such as the reaction temperature and the reaction time.

TL;DR: In this paper, the reaction of Li[2,6-(Me2NCH2)2C6H3] with ECl3 results in the chelated dichlorides, [2, 6-(Me 2 NCH2]2C 6H 3]ECl2 (EP (1), As (2), Sb (3), Bi (4)).

TL;DR: In this paper, the reaction of pyrazole-derived ligand 3,5-bis(pyridin-2-yl)pyrazole (bpypz) with Cu(NO3)2, CuCl2 and CuBr2 yields polynuclear copper(II) compounds with remarkable structural and magnetic properties.

TL;DR: In this paper, mixed-valence complexes of the type (PP)ClRu(μ-Cl)3RuCl(PP), and the products formed by their reduction with H2, are synthesized, where PP is a chelating ditertiary phosphine Ph2P(CH2)nPPh2 (n=3-6) or some related chiral analogues such as diop, chiraphos, dppcp, dpcycp, bdpp

TL;DR: In this paper, the synthesis and characterization of new coordination compounds of Au(III, with dithiocarbamates derived from α-amino acids (DL-alanine, DL-valine, Lvaline and DL-leucine) is reported.

TL;DR: In this article, four mononuclear copper(II) complexes have been prepared by allowing copper (II) aspirinate to react with benzimidazole, 2-methyl-5-nitrobenzimdazole (5-N) and metronidazoles.

TL;DR: In this paper, a series of ruthenium complexes with polypyridyl ligands, such as [RuL3]2+, cis-[RuCl2L2]- and [RuCl4L]- (L=bpy, phen or Hdpa (di-2,2-dipyridylamine)), including [RuCL6]3−, were synthesized.

TL;DR: The diborane(4) derivatives Mes 2 BB(Mes)Ph and Me 2 N(Ph)BB(PhNMe 2 readily react with lithium powder in ether to give the doubly reduced salts.

TL;DR: In this article, the coordination modes of the pyS ligand in the complexes, including chelation, S-unidentate, and the fast exchange between them, have been elucidated.

TL;DR: In this article, the crystal structures and the magnetic properties of molecular materials arising from the reaction of the [Cu(pba)]2− recursor with trivalent rare earth ions M(III), pba stands for 1,3- propylenebis(oxamato).

TL;DR: In this article, the effects of controlled electronics and sterics at the metal centre on the kinetics of associative (SN2)CO substitutions by a number of phosphine and phosphite ligands in a series of indenyl ring-substituted rhodium bis(carbonyl) complexes, are reported.

TL;DR: In this article, the cavity size of 18crown-6 matches the ionic radius of Pb2+ and the lead ion resides exactly in the center of the crown ether.

TL;DR: In this article, the structure of binuclear complexes with the general formula [Cu(tmtp)(L)X]n has been determined by single-crystal X-ray diffraction methods.

TL;DR: In this paper, a single crystal X-ray diffraction at low temperature was used to determine the bidentate 1,2-dimethyl-3-hydroxy-4-pyridinone (DMHP) and its Fe(III) complex.

TL;DR: In this article, the preparation of the complex [(CuL)4P2O7]·nH2O (HL=2-formylpyridine thiosemicarbazone; n=9−12) from the reaction of Na4P 2O7 with [{CuL(CH3COO)}2] is described.

TL;DR: In this article, the self consistent field Xα-scattered wave (SCF-Xα-SW) calculations have been used to characterize the bonding between the Cu(II) ion and the axial methionine residue in blue copper proteins.

TL;DR: In this article, the trivalent metal ion stability constants for tris bidentate chelates of 1-methyl-3-hydroxy-2-pyridinone (MH2P) and 1-4-dihydroxy-1-polycyclic-cyclic (DH2P), were determined by potentiometric and spectroscopic methods at 25.0 °C, 0.100 M KCI.

TL;DR: Four steroidal organotin compounds have been prepared and compared in vitro with a parent steroid and two model compounds in a series of human tumor cell lines and one compound was a highly effective antitumor agent.

TL;DR: In this paper, an α-Keggin framework capped by two [VO] subunits was used to identify doubly-bridging oxygens, and the structure was solved by direct methods, and least-squares refinement converged at R=0.033.

TL;DR: Variations in the reduction potential of Bbr azurin with both pH and temperature indicate that the copper site is distorted significantly by a redox-linked conformational change in this protein.