Rigid nonlabile polyoxometalate cryptates [ZP5W30O110](15-n)- that exhibit unprecedented selectivity for certain lanthanide and other multivalent cations

Creaser, I. I.; Heckel, Maximilian; Neitz, R.J.; Pope, Michael T.

doi:10.1021/ic00061a010

Cited by 202 publications

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“…The gadolinium-encrypted heteropolyanion [G dΡ5W30O110]12-was prepared from the parent Preyssler anion according to the previously described method [1,4,5]. Substitution of Na+ by Gd3+ was made according to the reaction The gadοliniumsandwiched complex [Gd(SiW11 O39)2H3-was obtained from the ligand K8[SiW11O39] .…”

Section: Synthesis Of Compoundsmentioning

confidence: 99%

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EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW₁₁O₃₉)₂]^13-and [GdP₅W₃₀O₁₁₀]^12-

et al. 1996

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[II] have been chosen for EPR study. This study is a continuation of our recent investigation related to solid gadolinium complexes: β-diketonates and aminopolycarboxylates. The EPR spectra of the Gd-polyoxometalates studied provide much better resolution than those recently studied. The spectra of Gd-polyoxometalates containing 1.7 to 2.5% of Gd(HI) do not require an additional computer processinng for correct interpretation. It is on tle contrary to the β-diketonates and polyamieocarboxylates (witl the content of Gd(III) 22-33%) for which the use of the RKU computer program (based on Fourier transform) was necessary in .order to enhance the spectra resolution thus improving their correct interpretation. Tle EPR spectra obtained for the compounds Ι and II markedly differ from the U-spectrum characteristic of Gd(HI) in glasses. Taking into account the spin-Hamiltonian calculations the existence of Gd(III) ion in two different surroundings: in a strong crystal freld of rhombic symmetry and in a weak crystal field, is observed. The differences observed between the case I and II seem to be related to a various hydration degree.

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Section: Synthesis Of Compoundsmentioning

confidence: 99%

“…The signifucance and wide interest to the lanthanide(III)-heteropolyanions concern their potential antyviral activity and applications in catalysis [1]. Such complexes have potential applications in imaging and/or nuclear medicine.…”

Section: Introductionmentioning

confidence: 99%

EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW₁₁O₃₉)₂]^13-and [GdP₅W₃₀O₁₁₀]^12-

et al. 1996

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“…The Preyssler heteropolyanion [ΝaΡ5W30O110]14-belongs to few heteropolytungstate anions which encapsulate lanthanide ions [1][2][3]. The significance and wide interest of lanthan ide-encrypted Preyssler anions (and also [ΝaSb9W21O86] 18-heteropolyanion) concerns their potential antyviral activity and applications in catalysis [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…The significance and wide interest of lanthan ide-encrypted Preyssler anions (and also [ΝaSb9W21O86] 18-heteropolyanion) concerns their potential antyviral activity and applications in catalysis [2][3][4][5]. The [ΝaΡ5W30O110]14-anion consists of five PW6O22 units (derived from the Keggin anion [PW12O40] 3-) arranged in a crown to form a cylindrical cavity.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Spectroscopic Study of Europium(III) in Heteropolyanion [EuP₅W₃₀O₁₁₀]^12-

1996

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The heteropolyanions of Preyssler anion [NaP5 W30 O110]14-and its europium-encrypted derivative [EuP5 W30 O110]12 were prepared and spectroscopically characterized. The compositions of these heteropolyanions were verifred based oji tle results from elemental and thermogravimetric analysis and the data of spectrophotometric determination of tungsten contents. Absorption in the UV-vis and IR region and luminescence spectra, as well as results of the laser-induced europium ion luminescence spectroscopy, obtained for solid complexes and their solutions, were analysed. Both in solid and solution the europium-encrypted derivative las three water molecules of hydration.

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A Thin-Film Electrochromic Device Based on a Polyoxometalate Cluster

et al. 2002

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Electrochromic devices fabricated by layer‐ by‐layer assembly of europium‐containing polyoxometalate clusters, poly(allylamine hydrochloride), and poly(styrenesulfonate) are investigated (see Figure). A high electrochemical contrast, adequate response time, low operation voltage, and low power consumption are reported. A further advantage of these devices is the potential for automating their fabrication.

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Rigid nonlabile polyoxometalate cryptates [ZP5W30O110](15-n)- that exhibit unprecedented selectivity for certain lanthanide and other multivalent cations

Cited by 202 publications

References 0 publications

EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW₁₁O₃₉)₂]^13-and [GdP₅W₃₀O₁₁₀]^12-

EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW₁₁O₃₉)₂]^13-and [GdP₅W₃₀O₁₁₀]^12-

Synthesis and Spectroscopic Study of Europium(III) in Heteropolyanion [EuP₅W₃₀O₁₁₀]^12-

A Thin-Film Electrochromic Device Based on a Polyoxometalate Cluster

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Rigid nonlabile polyoxometalate cryptates [ZP5W30O110](15-n)- that exhibit unprecedented selectivity for certain lanthanide and other multivalent cations

Cited by 202 publications

References 0 publications

EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW11O39)2]13-and [GdP5W30O110]12-

EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW11O39)2]13-and [GdP5W30O110]12-

Synthesis and Spectroscopic Study of Europium(III) in Heteropolyanion [EuP5W30O110]12-

A Thin-Film Electrochromic Device Based on a Polyoxometalate Cluster

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EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW₁₁O₃₉)₂]^13-and [GdP₅W₃₀O₁₁₀]^12-

EPR Study of Gadolinium(III) Complexes with Heteropolyanions: [Gd(SiW₁₁O₃₉)₂]^13-and [GdP₅W₃₀O₁₁₀]^12-

Synthesis and Spectroscopic Study of Europium(III) in Heteropolyanion [EuP₅W₃₀O₁₁₀]^12-