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On phosphorus chemical shift anisotropy in metal (IV) phosphates and phosphonates: A 31P NMR experimental study

Journal Article · · Magnetic Resonance in Chemistry
DOI:https://doi.org/10.1002/mrc.5313· OSTI ID:2420659
 [1];  [2];  [2];  [2]
  1. Texas A & M Univ., College Station, TX (United States); OSTI
  2. Texas A & M Univ., College Station, TX (United States)

The phosphorus chemical shift anisotropies, 31PΔcs, and asymmetry parameters η were measured by the 31P{1H} NMR experiments in static and low-frequency spinning samples of the zirconium phosphates and phosphonates and also in the mixed Zr (IV)/Sn (IV) phosphate/phosphonate material. The data obtained have shown a 111 connectivity in the HPO4 and PO3 groups, which does not change at modification and intercalation of the materials. The 31PΔcs values of the phosphonate groups (43–49 ppm) significantly surpass the values characterizing the HPO4 groups (23–37 ppm). The 31P Δcs values obtained for the metal (IV) phosphates were discussed in terms of P-O distances. Finally, the 31P chemical shift anisotropy parameters can help at elucidation of local structures in phosphate and phosphonate materials.

Research Organization:
Texas A & M Univ., College Station, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0017864
OSTI ID:
2420659
Journal Information:
Magnetic Resonance in Chemistry, Journal Name: Magnetic Resonance in Chemistry Journal Issue: 1 Vol. 61; ISSN 0749-1581
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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