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87Sr, 119Sn, 127I single and {1H/19F}-double resonance solid-state NMR experiments: application to inorganic materials and nanobuilding blocks

DOI: 10.1002/slct.201600805 DOI Help

Authors: Danielle Laurencin (Université de Montpellier) , François Ribot (Sorbonne Universités) , Christel Gervais (Sorbonne Universités) , Adrian J. Wright (University of Birmingham) , Annabelle R. Baker (Diamond Light Source) , Lionel Campayo (CEA, DEN, DTCD, SECM) , John V. Hanna (University of Warwick) , Dinu Iuga (University of Warwick) , Mark E. Smith (University of Warwick; Lancaster University) , Jean-Marie Nedelec (ICCF, CNRS UMR 6295) , Guillaume Renaudin (ICCF, CNRS UMR 6295) , Christian Bonhomme (Sorbonne Universités)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chemistryselect , VOL 1 , PAGES 4509 - 4519

State: Published (Approved)
Published: September 2016

Abstract: 87Sr, 127I and 119Sn wideline NMR spectroscopy was successfully applied to inorganic and hybrid materials: (i) Sr derivatives of medicinal interest (Sr-malonate, Sr-pyrophosphates, mixed Ca,Sr-fluoroapatites); (ii) apatitic structures acting as host matrices for iodine; and (iii) Sn-derived oxo-clusters which can be used as inorganic nanobuilding blocks. The BRAIN (BRoadband Adiabatic INversion) CP (Cross Polarization) approach (by Schurko et al.) was applied to a non integer quadrupolar nucleus (87Sr, I=9/2). The sequence was used in combination with WURST (Wideband Uniform-Rate Smooth-Truncation) QCPMG (Quadrupolar Carr-Purcell Meiboom-Gill) for optimal sensitivity. We showed that 127I WURST QCPMG experiments were sufficiently sensitive to allow rapid characterization of the incorporation of iodide (I−) anions in lead vanadate/phosphate apatites, and that 127I acted as a sensitive probe for the description of local disorder. 1H/19F → 119Sn BRAIN CP was successfully applied to the detailed characterization of tin oxo-clusters, using 1H and 19F as spin baths. We demonstrated that BRAIN CP can be effectively used as a tool of spectral editing leading to the estimation of spatial proximities between 119Sn and 1H/19F nuclei.

Journal Keywords: BRAIN CP; Iodo/fluoroapatite; Strontium malonate/boronate; Tin oxo-clusters; Wideline NMR (87Sr, 119Sn, 127I); WURST QCPMG

Subject Areas: Chemistry, Materials


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Added On: 06/12/2016 09:33

Discipline Tags:

Chemistry Materials Science Inorganic Chemistry

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