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Evidence for a new type of vanadyl pairs in (VO)2P2O7: an ESR and magnetisation study |
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| Authors: | M Ruitenbeek A Barbon EE van Faassen JW Geus |
| Affiliation: | (1) Department of Inorganic Chemistry, Utrecht University, Debye Institute, PO Box 80.083, 3508 TB Utrecht, The Netherlands |
| Abstract: | ESR and magnetisation experiments have identified a new type of antiferromagnetic pairing of vanadyl groups in the butane oxidation catalyst vanadylpyrophosphate. This pairing is an order of magnitude weaker than the coupling predominantly found in crystalline (VO)2P2O7. |
| Keywords: | vanadylpyrophosphate butane oxidation maleic anhydride catalyst pairing of vanadyl groups ESR spectroscopy magnetic susceptibility Curie– Weiss behaviour Curie constant Weiss temperature |
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