Observation of solid-state 103Rh NMR by cross-polarization |
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Authors: | Phillips Brian L Houston Jacqueline R Feng Jian Casey William H |
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Affiliation: | Center for Environmental Molecular Science, Department of Geosciences, State University of New York, Stony Brook, New York 11794, USA. |
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Abstract: | Using 103Rh[1H] cross-polarization (CP) methods, we have obtained solid-state 103Rh NMR spectra for diamagnetic Rh(III) compounds. The isotropic chemical shift and chemical shift anisotropy (CSA) are reported for a crystalline form of the dihydroxy-bridged Rh(III) dimer and for a salt of the oxo-centered acetate-bridged Rh(III) trimer, from analysis of conventional CP/MAS spectra. Comparison of the CP kinetics of the dimer with new crystal structure data suggests a strategy for predicting 103Rh CP/MAS properties in solids. |
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