Hydrogen Bond and 19F NMR Chemical Shift Akisotropy in Apatite |
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| Authors: | R. G. Knoubovets M. L. Afanasjev S. P. Habuda |
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| Affiliation: | 1. Institute of Geochemical Raw Materials , Ljubertsy, Moscow Region, USSR;2. Institute of Physics, Siberian Department, Academy of Sciences of tae USSR , Krasnoyarsk, USSR |
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| Abstract: | Abstract The fluoroapatite minerals, Ca5-F(PO4)3 usually contain some hydroxyis, instead of fluorine. From infrared spectra it was concluded, that there are weak hydrogen bonds OH … F along apatite hexagonal axis1. In order to receive more detailed information about the character of F?and OH?bonds with the nearest atoms in apatites we studied the nuclear magnetic resonance (NMR) spectra of protons and fluorines in natural apatite single crystal, in which approximately 15% of fluorines is substituted by hydroxyis. |
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| Keywords: | hydrogen bond in minerals fluorine NMR chemical shift |
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