{sup 63}Cu magic angle spinning (MAS) nuclear magnetic resonance (NMR) study of CuX crystals (X=Cl, Br, and I) and CuX-based glasses (X=Cl, Br, and I)
{sup 63}Cu MAS NMR spectra of CuX crystals (X=Cl, Br, and I) and CuX-based glasses (X=Cl, Br, and I) have been measured. The CuCl and CuI crystals gave the isotropic chemical shift values around 0 ppm, and the CuBr crystal, around -55 ppm. The peak positions of the chlorocuprate(I), bromocuprate(I), and iodocuprate(I) glasses were very close to those of the CuX crystals, respectively. This result indicates that these glasses mainly consist of CuX{sub 4} tetrahedra (X=Cl, Br, and I). The halogen coordination environments around Cu{sup +} in bromochlorocuprate(I) glasses were dependent on the kind of modifying cation and the Br{sup -}/(Cl{sup -}+Br{sup -}) ratio. The bromochlorocuprate(I) glasses were mainly composed of CuCl{sub m}Br{sub 4-m} or CuCl{sub n}Br{sub 4-n} tetrahedra (m=0, 1, 2, and 4; n=0, 1, and 4)
- OSTI ID:
- 20883103
- Journal Information:
- Materials Research Bulletin, Vol. 37, Issue 14; Other Information: PII: S0025540802009777; Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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