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The main focus of our research is solid-state NMR of half-integer quadrupolar nuclei in inorganic and organometallic materials.  Such quadrupolar nuclei constitute about 73% of NMR active nuclides in the periodic table.  Our research focusses are currently in three general areas:

1.  Solid-State NMR of Quadrupolar Nuclei in Metallocenes and Related Organometallic Compounds

cp2al_structure.jpg (44931 bytes)We apply solid-state NMR, powder X-ray diffraction and ab initio calculations to examine the relationships between the molecular structures of metallocenes, dynamic intramolecular motion and anisotropic NMR interaction tensors (such as the chemical shielding and electric field gradient tensors).

 

 

 

2.  Signal Enhancement in NMR Spectra of Unreceptive Quadrupolar Nuclei

wpe9.jpg (72387 bytes)Many half-integer quadrupolar nuclei have low magnetogyric ratios, low natural abundance, large nuclear quadrupole moments, or even some combination of the above, making them very "unreceptive" to study by NMR. 

We use the quadrupolar Carr-Purcell Meiboom-Gill (QCPMG) pulse sequence to study such nuclei.

 

 

3.  Solid-State NMR Investigations of Composite Materials (Metal Oxides and Organometallics)

wpeA.jpg (25120 bytes)Solid-state NMR experiments, coupled with powder X-ray diffraction and Raman spectroscopy are applied to study composite materials composed of mesoporous metal oxides (tantalum, niobium oxides) as the host material and a variety of organometallic complexes as guest materials.  This work is done in collaboration with Prof. David Antonelli at the University of Windsor.

Last Updated: September 1, 2003
Copyright Rob Schurko, 2003