An unexpected influence of the nature of the amine on the crystal structure of some Co(III)–Bi(III) heterobimetallic complexes

Stavila, Vitalie; Gulea, Aurélian; Shova, Sergiu; Simonov, Yurii A.; Petrenko, P. A.; Lipkowski, Janusz; Riblet, Fabrice; Helm, Lothar

doi:10.1016/j.ica.2004.01.025

Cited by 21 publications

(4 citation statements)

References 19 publications

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“…The complex I is an unique example, which differs structurally from other Bi(EDTA) 2 complexes by [28]. These data are in concordance with X-ray analysis in solid state [29]. The signals from CH 2 -groups of nioxime ligands were observed at 2.54 and 1.51 ppm (1.50 ppm for complex II) as strong singlets.…”

Section: Chemistrysupporting

confidence: 70%

In vitro antileukemia, antibacterial and antifungal activities of some 3d metal complexes: Chemical synthesis and structure – activity relationships

Gulea

Poirier

Roy

et al. 2008

Journal of Enzyme Inhibition and Medicinal Chemistry

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The present paper describes the synthesis, characterization and in vitro biological evaluation screening of different classes (ammoniacates, dioximates, carboxylates, semi-and thiosemicarbazidates) of Co(II), Co(III), Cu(II), Ni(II), Mn(II), Zn(II) and Fe(III) complexes. Schiff bases were obtained from the reaction of some salicyl aldehydes with, respectively, furoylhydrazine, benzoylhydrazine, semicarbazide, thiosemicarbazide and S-methylthiosemicarbazide to give tridentate ligands containing ONO, ONS or ONN as donor atoms. The synthetic metal complexes are of various geometrical and electronic structures, thermodynamic and thermal stabilities, and magnetic and conductance properties. All complexes, except those of Cu, are octahedral. Some Cu, Co and Mn compounds have a dimeric or a polymeric structure. The composition and structure of complexes were analysed by elemental analysis, IR and 1 H NMR and 13 C NMR spectroscopies, and magnetochemical, thermoanalytical and molar conductance measurements. All ligands and metal complexes were tested as inhibitors of human leukemia (HL-60) cells growth, and the most potent, the Cu(II) complexes, have been also tested for their in vitro antibacterial and antifungal activities. Structure-activity relationships were carried out.

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Section: Chemistrysupporting

confidence: 70%

In vitro antileukemia, antibacterial and antifungal activities of some 3d metal complexes: Chemical synthesis and structure – activity relationships

Gulea

Poirier

Roy

et al. 2008

Journal of Enzyme Inhibition and Medicinal Chemistry

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“…Due to the dimeric nature of the complex, the possible formation of Bi(III)-Fe(III) heteronuclear arrangement is not expected to become predominant [14]. EDTA as a chelating agent forms heterometallic polynuclear complexes in the solution, where reacting metal atoms come into close proximity [20]. Maybe this why EDTA offers the advantage over citric acid in the production of pure phase BiFeO 3 .…”

Section: Resultsmentioning

confidence: 99%

Preparation of high-quality BiFeO3 nanopowders via a polyacrylamide gel route

Tang

Yang

Shen

et al. 2009

Journal of Alloys and Compounds

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“…Heterometallic complexes of bismuth with transition metals have been widely investigated, especially because of their interesting structural and reactive features − as well as their potential utility as precursors for preparing mixed oxide materials, − and their chemistry remains an active area of research in inorganic and organometallic chemistry. Among these complexes, heterometallic complexes with bridging carboxylate groups have attracted particular interest, owing to their strikingly different structure and reactivity due to the cooperation effects of the metal centers.…”

Section: Introductionmentioning

confidence: 99%

Selective Arylation Reactions of Bismuth−Transition Metal Salicylate Complexes

2009

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Heterometallic bismuth-niobium or -tantalum salicylate complexes react with sodium tetraphenylborate to produce complexes in which one or more aryl groups have been transferred from boron to bismuth with the concomitant displacement of a eta(2)-salicylato ligand. When the previously reported Bi(2)Ta(2)(sal)(4)(Hsal)(4)(OEt)(4) (1) and BiTa(4)(mu-O)(4)(sal)(4)(Hsal)(3)(O(i)Pr)(4) (2) are treated with an alcoholic solution of NaBPh(4), the compounds [PhBi(Hsal)Ta(sal)(2)(OEt)(2) x EtOH](2) (3) and PhBiTa(4)(mu-O)(4)(Hsal)(2)(sal)(4)(OEt)(4) x CH(2)Cl(2) (4) are produced (sal = O(2)CC(6)H(4)-2-O(2-), Hsal = O(2)CC(6)H(4)-2-OH(-)). The core geometries of the heterometallic complexes are retained. However, if preparations of compound 1 are treated with NaBPh(4) without prior isolation of 1, [Ph(2)BiNb(sal)(2)(OMe)(2)](infinity) (5) is produced instead. This compound was characterized both as a solvent-free crystalline form and as one containing a lattice diethyl ether. The compound exhibits a polymeric chain structure that can be viewed as alternating [Ph(2)Bi](+) and [Nb(sal)(2)(OMe)(2)](-) units connected via bridging carboxylate groups. The arylation of the bismuth(III) center proceeds smoothly under mild conditions at room temperature, affording a new means for the mild functionalization of bismuth-transition metal heterometallic complexes.

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An unexpected influence of the nature of the amine on the crystal structure of some Co(III)–Bi(III) heterobimetallic complexes

Cited by 21 publications

References 19 publications

In vitro antileukemia, antibacterial and antifungal activities of some 3d metal complexes: Chemical synthesis and structure – activity relationships

In vitro antileukemia, antibacterial and antifungal activities of some 3d metal complexes: Chemical synthesis and structure – activity relationships

Preparation of high-quality BiFeO3 nanopowders via a polyacrylamide gel route

Selective Arylation Reactions of Bismuth−Transition Metal Salicylate Complexes

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