Chemical bonding and molecular dynamics in inclusion compounds of fluorinated graphite according to 19F NMR spectroscopy data |
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Authors: | S. P. Gabuda S. G. Kozlova V. M. Paasonen A. S. Nazarov |
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Affiliation: | (1) Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, USA |
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Abstract: | In Inclusion compounds of fluorinated graphite with chlorine trifluoride C2. xClF3 and hexafluoro-benzene C2F. xC6F6 , the guest molecules are characterized by rotational mobility and weak bonds with the host matrix. 19F NMR chemical shift tensors are determined for the fluorine nuclei of the matrix and the guest molecules, including the structurally nonequivalent fluorine atoms ofClFj molecules [δ (Fl) = −700, δ(F1) = −280; δ|| (F2) = −440, δ±(F2) = −220ppm relative to F2]. It is shown that C-F bonds in the host matrix are close to those in aromatic fluorocarbons. Translated from Zhumal Stmktumoi Khimii, Vol. 41, No. 1, pp. 80-85, January–February, 2000. |
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