CP/MAS [sup 89]Y NMR spectroscopy: A facile method for characterizing yttrium-containing solids
- Univ. of California, Irvine (United States)
Solid state CP/MAS [sup 89]Y NMR spectroscopy, which had previously been limited to air stable materials containing solvated water, has been extended to a series of air sensitive yttrium complexes with a chemical shift range of over 1,000 ppm. The results of this study demonstrate that [sup 89]Y CP/MAS spectra can be easily obtained on a broad range of complexes in a short period of time. A convenient method for obtaining the Hartmann-Hahn match is described, and probe ringing is shown to be minimal. The effects of variable power level, contact time, and spinning rate are described. Spectra obtained on mono-, di-, and polymetallic samples which had been characterized by X-ray crystallography show a direct correlation between the number of signals and the number of unique solid state environments. The utility of this method in identifying impurities in yttrium-containing materials difficult to characterize by other methods is demonstrated. 32 refs., 8 figs., 2 tabs.
- OSTI ID:
- 6209372
- Journal Information:
- Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 32:7; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
CHEMICAL SHIFT
COMPLEXES
CRYSTALLOGRAPHY
IMPURITIES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES
YTTRIUM 89
YTTRIUM COMPLEXES
YTTRIUM ISOTOPES