Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy
In the Lehmann-type effect of rotation of small single crystals of chiral substances during their dissolution at the top of a nematic droplet the angular velocity of rotation of the chiral dopant crystals is experimentally shown to be dependent on the crystal dimensions, helical twisting power of th...
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| Published in: | Functional Materials |
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| Date: | 2007 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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НТК «Інститут монокристалів» НАН України
2007
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/136540 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy / I.A. Gvozdovskyy, L.N. Lisetski // Functional Materials. — 2007. — Т. 14, № 3. — С. 332-337. — Бібліогр.: 17 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862639080628551680 |
|---|---|
| author | Gvozdovskyy, I.A. Lisetski, L.N. |
| author_facet | Gvozdovskyy, I.A. Lisetski, L.N. |
| citation_txt | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy / I.A. Gvozdovskyy, L.N. Lisetski // Functional Materials. — 2007. — Т. 14, № 3. — С. 332-337. — Бібліогр.: 17 назв. — англ. |
| collection | DSpace DC |
| container_title | Functional Materials |
| description | In the Lehmann-type effect of rotation of small single crystals of chiral substances during their dissolution at the top of a nematic droplet the angular velocity of rotation of the chiral dopant crystals is experimentally shown to be dependent on the crystal dimensions, helical twisting power of the dopant (determined in independent measurements) and viscosity of the nematic solvent, whereas no rotation was observed for non-chiral dopants or in isotropic solvents under the same conditions. For systematic series of dopants (e.g., cholesterol esters), linear dependencies between the angular velocity and helical twisting power were found. It is argued that the obtained results (a) suggest a novel method for evaluation of helical twisting power, especially useful for dopants of weak chirality, and (b) are a direct evidence of transformation of the energy of chiral interactions into the energy of molecular movement.
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| first_indexed | 2025-12-01T01:16:56Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-136540 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1027-5495 |
| language | English |
| last_indexed | 2025-12-01T01:16:56Z |
| publishDate | 2007 |
| publisher | НТК «Інститут монокристалів» НАН України |
| record_format | dspace |
| spelling | Gvozdovskyy, I.A. Lisetski, L.N. 2018-06-16T13:24:04Z 2018-06-16T13:24:04Z 2007 Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy / I.A. Gvozdovskyy, L.N. Lisetski // Functional Materials. — 2007. — Т. 14, № 3. — С. 332-337. — Бібліогр.: 17 назв. — англ. 1027-5495 https://nasplib.isofts.kiev.ua/handle/123456789/136540 In the Lehmann-type effect of rotation of small single crystals of chiral substances during their dissolution at the top of a nematic droplet the angular velocity of rotation of the chiral dopant crystals is experimentally shown to be dependent on the crystal dimensions, helical twisting power of the dopant (determined in independent measurements) and viscosity of the nematic solvent, whereas no rotation was observed for non-chiral dopants or in isotropic solvents under the same conditions. For systematic series of dopants (e.g., cholesterol esters), linear dependencies between the angular velocity and helical twisting power were found. It is argued that the obtained results (a) suggest a novel method for evaluation of helical twisting power, especially useful for dopants of weak chirality, and (b) are a direct evidence of transformation of the energy of chiral interactions into the energy of molecular movement. en НТК «Інститут монокристалів» НАН України Functional Materials Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy Обертання монокристалів хіральних домішок на нематичній краплині: гідродинамічна агалогія Article published earlier |
| spellingShingle | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy Gvozdovskyy, I.A. Lisetski, L.N. |
| title | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy |
| title_alt | Обертання монокристалів хіральних домішок на нематичній краплині: гідродинамічна агалогія |
| title_full | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy |
| title_fullStr | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy |
| title_full_unstemmed | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy |
| title_short | Rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy |
| title_sort | rotation of single crystals of chiral dopants at the top of namatic droplet: a hydrodynamical analogy |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/136540 |
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