Characterization of PtIV-containing polyoxometalates by high-resolution solid-state 195Pt and 51V NMR spectroscopy

Sneha Dugar; Natalya V. Izarova; Sib Sankar Mal; Riqiang Fu; Hea-Chung Joo; Uk Lee; Naresh S. Dalal; Michael T. Pope; Geoffrey B. Jameson; Ulrich Kortz

doi:10.1039/C5NJ01242B

Characterization of Pt^IV-containing polyoxometalates by high-resolution solid-state ¹⁹⁵Pt and ⁵¹V NMR spectroscopy†‡

Sneha Dugar,^a Natalya V. Izarova,§¶^b Sib Sankar Mal,||^b Riqiang Fu,^a Hea-Chung Joo,^c Uk Lee,^c Naresh S. Dalal,*^a Michael T. Pope,^d Geoffrey B. Jameson^e and Ulrich Kortz*^b

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* Corresponding authors

^a Department of Chemistry and Biochemistry, Florida State University and National High Magnetic Field Laboratory, Tallahassee, Florida 32306, USA
E-mail: dalal@chem.fsu.edu

^b Jacobs University, Department of Life Sciences and Chemistry, 28725 Bremen, Germany
E-mail: u.kortz@jacobs-university.de
Web: http://www.jacobs-university.de/ses/ukortz

^c Department of Chemistry, Pukyong National University, 599-1 Daeyeon-3dong, Nam-ku, Pusan 608-737, South Korea

^d Department of Chemistry, Georgetown University, Washington, DC 20057, USA

^e Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand

Abstract

We report on the feasibility of applying high-resolution solid-state ¹⁹⁵Pt MAS NMR spectroscopy for several Pt^IV-containing polyoxotungstates, and of ¹⁹⁵Pt as well as ⁵¹V for a Pt^IV-containing polyoxovanadate. This method is particularly useful for polyanions which are unstable in solution and/or poorly soluble, as well as for systems exhibiting crystallographic disorder of Pt and W sites. We also report solution ¹⁹⁵Pt and ¹⁸³W NMR spectra of hexatungstoplatinate(IV) [H₃PtW₆O₂₄]⁵⁻ for the first time.

This article is part of the themed collection: Emergent Polyoxometalates and Soft-oxometalates

New Journal of Chemistry

Characterization of Pt^IV-containing polyoxometalates by high-resolution solid-state ¹⁹⁵Pt and ⁵¹V NMR spectroscopy†‡

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Characterization of Pt^IV-containing polyoxometalates by high-resolution solid-state ¹⁹⁵Pt and ⁵¹V NMR spectroscopy

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