Solid-State NMR of H3PW12O40·nH2O and H3PW12O40·6C2H5OH
- 5 January 1988
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 17 (1), 139-142
- https://doi.org/10.1246/cl.1988.139
Abstract
High-resolution solid-state 1H and 31P NMR revealed that there were at least three different states for protons of H3PW12O40·nH2O; (i) protons present in highly hydrated samples, (ii) protonated water which is hydrogen-bonded to terminal oxygen, W = O···H+ (H2O)2 (n \doteqdot 6), and (iii) proton which is directly bonded to bridging oxygen, W–OH–W (n \doteqdot 0). When water was replaced by ethanol, a protonated ethanol species was detected by 1H, 13C, and 31P NMR.Keywords
This publication has 4 references indexed in Scilit:
- Pseudoliquid behavior of heteropoly compound catalysts. Unusual pressure dependences of the rate and selectivity for ethanol dehydrationJournal of the American Chemical Society, 1987
- Acidic and catalytic properties of heteropoly compoundsMaterials Chemistry and Physics, 1987
- Dodecatungstophosphoric acid hexahydrate, (H5O2+)3(PW12O403−). The true structure of Keggin's `pentahydrate' from single-crystal X-ray and neutron diffraction dataActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1977
- Stable carbonium ions. XLI. Protonated aliphatic alcohols and their cleavage to carbonium ionsJournal of the American Chemical Society, 1967