Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Single-Crystal $^{27}Al$ NMR Study of Corundum α-$Al_2O_3$

  • Published : 1999.10.20
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Abstract

27Al NMR chemical shielding, quadrupolar coupling, and dipolar coupling interactions for corundum (α-Al2O3) are determined from the single-crystal 27 Al NMR spectra according to the rotation about three orthogonal axis. 27 Al NMR parameters obtained in this work with high accuracy are as follows: δiso = 7.4(4) ppm, QCC = 2.30(4) MHz, h = 0.08(3), and R = 2.0(3) kHz. This work appears to be the first NMR measurement of an aluminum-aluminum dipolar coupling interaction in α-Al2O3 crystals.

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References

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