Molecular and crystal structures of 4-acylphenyl 4′-alkyloxybenzoates
Тип публикации: Journal Article
Дата публикации: 2013-01-24
scimago Q4
wos Q4
БС2
SJR: 0.145
CiteScore: 0.8
Impact factor: 0.5
ISSN: 10637745, 1562689X
General Chemistry
Condensed Matter Physics
General Materials Science
Краткое описание
The crystal structures of four liquid-crystal (LC) compounds belonging to 4-acylphenyl 4′-alkyloxybenzoates with the general formula CnH2n + 1-C(O)-C6H4-O-C(O)-C6H4-O-CmH2m + 1 numbered as 1/6, 1/7,2/7, and 3/7 (the numbers in the code indicate the ratios of the numbers of alkyl-chain units, n/m) are determined. Compounds 1/6 and 1/7 form smectic and nematic phases, but they are monotropic mesogens, whereas compounds 2/7 and 3/7 form only an enantiotropic smectic phase. Compound 3/7 crystallizes in two crystal modifications—triclinic with Z′ = 2 (3/7tr) and monoclinic with Z′ = 4 (sp. gr. P2, 3/7mon). All crystals consist of alternating aromatic and aliphatic regions and are characterized by the presence of weak directional interactions, such as C-H...O hydrogen bonds and π-stacking interactions. This provides the necessary conditions for the formation of a mesophase, and the existence of two types of structure-forming units is in line with the formation of a smectic phase. An explanation is proposed for the monotropic properties of 1/6 and 1/7.
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KONSTANTINOV I. I., Churakov A., Kuz'mina L. G. Molecular and crystal structures of 4-acylphenyl 4′-alkyloxybenzoates // Crystallography Reports. 2013. Vol. 58. No. 1. pp. 81-92.
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KONSTANTINOV I. I., Churakov A., Kuz'mina L. G. Molecular and crystal structures of 4-acylphenyl 4′-alkyloxybenzoates // Crystallography Reports. 2013. Vol. 58. No. 1. pp. 81-92.
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TY - JOUR
DO - 10.1134/S1063774513010082
UR - http://link.springer.com/10.1134/S1063774513010082
TI - Molecular and crystal structures of 4-acylphenyl 4′-alkyloxybenzoates
T2 - Crystallography Reports
AU - KONSTANTINOV, I. I.
AU - Churakov, A.V.
AU - Kuz'mina, L. G.
PY - 2013
DA - 2013/01/24
PB - Pleiades Publishing
SP - 81-92
IS - 1
VL - 58
SN - 1063-7745
SN - 1562-689X
ER -
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@article{2013_KONSTANTINOV,
author = {I. I. KONSTANTINOV and A.V. Churakov and L. G. Kuz'mina},
title = {Molecular and crystal structures of 4-acylphenyl 4′-alkyloxybenzoates},
journal = {Crystallography Reports},
year = {2013},
volume = {58},
publisher = {Pleiades Publishing},
month = {jan},
url = {http://link.springer.com/10.1134/S1063774513010082},
number = {1},
pages = {81--92},
doi = {10.1134/S1063774513010082}
}
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KONSTANTINOV, I. I., et al. “Molecular and crystal structures of 4-acylphenyl 4′-alkyloxybenzoates.” Crystallography Reports, vol. 58, no. 1, Jan. 2013, pp. 81-92. http://link.springer.com/10.1134/S1063774513010082.