The Synthesis and Characterization of the Tri-rhenium(VI) Capped Wells-Dawson Polyoxometalate, [{(C4H9)4N)5(C2H5)3NH}{Re3P2W15O62}]

Alexander M. Khenkin, Gregory Leitus, Lev Weiner, Ronny Neumann

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The tri-rhenium(VI) capped Wells-Dawson polyoxometalate, [Re3P2W15O62]6- with quaternary ammonium cations was synthesized by reacting the trivacant lacunary species, [P2W15O56]12- with [ReOCl3(PPh3)2] in an organic solvent. Elemental analysis by thermogravimetry and inductively coupled plasma mass spectroctrometry confirmed the substitution of three rhenium atoms, single-crystal X-ray diffraction as well as infra red spectroscopy showed the complete Wells-Dawson structure. The presence of all three rhenium atoms in one cap is indicated by 31P nuclear magnetic resonance spectroscopy and the electron spin resonance spectrum shows that the tri-rhenium(V) species with three unpaired electrons is low spin, S = 1/2.

Original languageEnglish
Pages (from-to)687-693
Number of pages7
JournalJournal of Cluster Science
Volume25
Issue number3
DOIs
Publication statusPublished - 2014

Fingerprint

Rhenium
rhenium
synthesis
Thermogravimetry
Atoms
magnetic resonance spectroscopy
Electron Spin Resonance Spectroscopy
Inductively coupled plasma
thermogravimetry
Ammonium Compounds
caps
X-Ray Diffraction
Organic solvents
Nuclear magnetic resonance spectroscopy
Paramagnetic resonance
atoms
Thermogravimetric analysis
Cations
Infrared spectroscopy
Spectrum Analysis

Keywords

  • Polyoxometalate
  • Rhenium
  • Tungsten
  • Wells-Dawson structure

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Biochemistry

Cite this

The Synthesis and Characterization of the Tri-rhenium(VI) Capped Wells-Dawson Polyoxometalate, [{(C4H9)4N)5(C2H5)3NH}{Re3P2W15O62}]. / Khenkin, Alexander M.; Leitus, Gregory; Weiner, Lev; Neumann, Ronny.

In: Journal of Cluster Science, Vol. 25, No. 3, 2014, p. 687-693.

Research output: Contribution to journalArticle

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abstract = "The tri-rhenium(VI) capped Wells-Dawson polyoxometalate, [Re3P2W15O62]6- with quaternary ammonium cations was synthesized by reacting the trivacant lacunary species, [P2W15O56]12- with [ReOCl3(PPh3)2] in an organic solvent. Elemental analysis by thermogravimetry and inductively coupled plasma mass spectroctrometry confirmed the substitution of three rhenium atoms, single-crystal X-ray diffraction as well as infra red spectroscopy showed the complete Wells-Dawson structure. The presence of all three rhenium atoms in one cap is indicated by 31P nuclear magnetic resonance spectroscopy and the electron spin resonance spectrum shows that the tri-rhenium(V) species with three unpaired electrons is low spin, S = 1/2.",
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AU - Neumann, Ronny

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AB - The tri-rhenium(VI) capped Wells-Dawson polyoxometalate, [Re3P2W15O62]6- with quaternary ammonium cations was synthesized by reacting the trivacant lacunary species, [P2W15O56]12- with [ReOCl3(PPh3)2] in an organic solvent. Elemental analysis by thermogravimetry and inductively coupled plasma mass spectroctrometry confirmed the substitution of three rhenium atoms, single-crystal X-ray diffraction as well as infra red spectroscopy showed the complete Wells-Dawson structure. The presence of all three rhenium atoms in one cap is indicated by 31P nuclear magnetic resonance spectroscopy and the electron spin resonance spectrum shows that the tri-rhenium(V) species with three unpaired electrons is low spin, S = 1/2.

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