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Room temperature synthesis of fluorinated graphite intercalation compounds with low fluorine loading of host matrix. / Chekhova, G. N.; Pinakov, D. V.; Shubin, Yu V. и др.
в: Journal of Fluorine Chemistry, Том 232, 109482, 04.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Room temperature synthesis of fluorinated graphite intercalation compounds with low fluorine loading of host matrix
AU - Chekhova, G. N.
AU - Pinakov, D. V.
AU - Shubin, Yu V.
AU - Fadeeva, V. P.
AU - Tikhova, V. D.
AU - Okotrub, A. V.
AU - Bulusheva, L. G.
PY - 2020/4
Y1 - 2020/4
N2 - The interaction of graphite with a gaseous mixture of BrF3 and Br2 at room temperature produced fluorinated graphite intercalation compounds with bromine. By changing the concentration of BrF3 in Br2 from 6.2 to 2.9 % we were able to obtain matrices of fluorinated graphene layers (C2Fx)n with x = 0.76, 0.66, 0.35, 0.25. It was shown that bromine was completely replaced by acetonitrile in the (C2Fx)n with x > 0.6, while two types of guests (CH3CN and Br2) were present between the layers with the lower fluorine loading. The Van der Waals forces hold CH3CN molecules in the (C2Fx)n host. The interaction of Br2 molecules with sp2-carbon regions remained in the C2Fx layers has donor-acceptor type. The models of guest molecules packing in host matrices (C2Fx)n are considered using the data on the stoichiometry and X-ray diffraction analysis.
AB - The interaction of graphite with a gaseous mixture of BrF3 and Br2 at room temperature produced fluorinated graphite intercalation compounds with bromine. By changing the concentration of BrF3 in Br2 from 6.2 to 2.9 % we were able to obtain matrices of fluorinated graphene layers (C2Fx)n with x = 0.76, 0.66, 0.35, 0.25. It was shown that bromine was completely replaced by acetonitrile in the (C2Fx)n with x > 0.6, while two types of guests (CH3CN and Br2) were present between the layers with the lower fluorine loading. The Van der Waals forces hold CH3CN molecules in the (C2Fx)n host. The interaction of Br2 molecules with sp2-carbon regions remained in the C2Fx layers has donor-acceptor type. The models of guest molecules packing in host matrices (C2Fx)n are considered using the data on the stoichiometry and X-ray diffraction analysis.
KW - Acetonitrile
KW - Bromine
KW - Fluorinated graphite
KW - guest–host interaction
KW - Intercalation compounds
KW - CARBON
KW - OXIDE
KW - INCLUSION-COMPOUNDS
KW - GRAPHENE
KW - LAYERS
KW - CXF
KW - NMR
KW - guest-host interaction
KW - ACETONITRILE
UR - http://www.scopus.com/inward/record.url?scp=85079146324&partnerID=8YFLogxK
U2 - 10.1016/j.jfluchem.2020.109482
DO - 10.1016/j.jfluchem.2020.109482
M3 - Article
AN - SCOPUS:85079146324
VL - 232
JO - Journal of Fluorine Chemistry
JF - Journal of Fluorine Chemistry
SN - 0022-1139
M1 - 109482
ER -
ID: 23424334