Structural characterization of two lipophilic tris(tropolonato) gallium(III) and indium(III) complexes of radiopharmaceutical interest

Nepveu, Françoise; Jasanada, F.; Walz, L.

doi:10.1016/s0020-1693(00)85593-0

Cited by 28 publications

(19 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rather intricate pattern observed in the 1 H-NMR spectrum of (1) is typical of the spin system AA¢BB¢M as has been found earlier for other tropolonato complexes [22]. Accordingly, two groups of multiplets are seen in the spectrum.…”

Section: Nmr Spectrasupporting

confidence: 72%

“…On the contrary, the 13 C{ 1 H}-NMR spectrum happened to be very simple and only four signals could be seen. As has been observed in some related complexes like aluminium and gallium tropolonate [22], all carbon atoms exhibit downfield shift if compared to the free ligand being more significant (about 10 ppm) for C1/C1¢ and less significant for C4 (about 1 ppm) [22].…”

Section: Nmr Spectrasupporting

confidence: 71%

See 1 more Smart Citation

The preparation of new oxoniobium(V) complexes from hydrated Niobium(V) Oxide: the crystal and molecular structure of Oxotris(2-pyridinolato-N-oxide)niobium(V)

Serafím

Bessler

Lemos

et al. 2007

Transition Met Chem

View full text Add to dashboard Cite

Three oxoniobium(V) complexes ONbL 3 with HL = tropolone (1), 2-pyridinol-N-oxide (2) or, 3-hydroxy-1,2-dimethyl-4(1H)-pyridone (3) are obtained in good yield by one step reactions from commercially available hydrated niobium(V) oxide in aqueous media. The products are characterized by elemental analysis, FT-IR spectroscopy, NMR spectroscopy ( 1 H-and 13 C-) and thermogravimetry. The crystal structure of oxotris(2-pyridinolato-N-oxide)niobium(V) is determined by single crystal X-ray diffraction, showing discrete molecules with pentagonal bipyramidal coordinated niobium. The 1 H-NMR spectra of CDCl 3 solutions indicate a fluxional behaviour for the three complexes.

show abstract

Section: Nmr Spectrasupporting

confidence: 72%

Section: Nmr Spectrasupporting

confidence: 71%

The preparation of new oxoniobium(V) complexes from hydrated Niobium(V) Oxide: the crystal and molecular structure of Oxotris(2-pyridinolato-N-oxide)niobium(V)

Serafím

Bessler

Lemos

et al. 2007

Transition Met Chem

View full text Add to dashboard Cite

show abstract

“…The IR spectra of tropolonato-metal(II) and -metal(III) complexes have been presented in detail [19,74]. Moreover, some efforts in describing the main bands for bismuth(III), gallium(III), and indium(III) compounds have been made previously [2,17].…”

Section: Nbo Analysismentioning

confidence: 99%

“…There are a few crystal structures for homoleptic complexes between tropolonato ligands and [12], [Ga(trop)(CH 3 ) 2 )] 2 [13], [Al(trop)Et 2 ] 2 [14] and [Ga(trop)(CH(SiMe 3 ) 2 )] 2 [10] have been reported.…”

Section: Introductionmentioning

confidence: 99%

“…There were compounds with the formula: [Bi(trop) 2 Cl] [15], Bi(trop) 3 and Na[Bi(trop) 4 ] [16]. In 1995 the preparation and characterization of new bismuth(III) compounds with tropolone and its derivatives have been presented but only the structures of nitratobis(tropolonato)bismuth(III) and aquabis(4,5-benzotropolonato)bismuth(III) nitrate have been shown [17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of pH and type of counterion on the formation of bismuth(III) complexes with tropolonato and 5-methyltropolonato ligands: Synthesis, structure, spectroscopic characterization and calculation studies

Łyczko

Lyczko

Woźniak

et al. 2015

Inorganica Chimica Acta

View full text Add to dashboard Cite

Seven-Coordinate d0 and d10 Ions − Computational and Experimental Studies on Tris(tropolonato)metal(III)−TOPO Adducts

Narbutt

Czerwiński²,

Krejzler

2001

Eur. J. Inorg. Chem.

View full text Add to dashboard Cite

The stabilities of molecular adducts between tris(tropolonato)metal(III) chelates of some tripositive ions of Groups 3 and 13 and trioctylphosphane oxide (TOPO) were studied using both theoretical and experimental methods. Density-functional calculations were used to optimise the structure and characterise tris(tropolonates) of scandium and yttrium, a series of model chelates of gallium, indium, thallium, scandium, and yttrium, as well as the 1:1 adducts of these chelates with trimethylphosphane oxide. The calculated energy of adduct formation decreased in the order: Y Ͼ Sc Ͼ Tl Ͼ In. Stability constants of the 1:1 (and some 1:2) TOPO adducts in solution, determined by synergistic solvent extraction of metal tropolonates, decreased in the same order. Both

show abstract

Structural characterization of two lipophilic tris(tropolonato) gallium(III) and indium(III) complexes of radiopharmaceutical interest

Cited by 28 publications

References 22 publications

The preparation of new oxoniobium(V) complexes from hydrated Niobium(V) Oxide: the crystal and molecular structure of Oxotris(2-pyridinolato-N-oxide)niobium(V)

The preparation of new oxoniobium(V) complexes from hydrated Niobium(V) Oxide: the crystal and molecular structure of Oxotris(2-pyridinolato-N-oxide)niobium(V)

Influence of pH and type of counterion on the formation of bismuth(III) complexes with tropolonato and 5-methyltropolonato ligands: Synthesis, structure, spectroscopic characterization and calculation studies

Seven-Coordinate d0 and d10 Ions − Computational and Experimental Studies on Tris(tropolonato)metal(III)−TOPO Adducts

Contact Info

Product

Resources

About