A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room Temperature
Photoluminescent nematic liquid crystals have been an attractive research target for decades, because of their potential applications in optoelectrical devices. Integration of luminescent motifs into cyclic structures is a promising approach to induce low-ordered liquid-crystalline phases, even thou...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/9/2/92 |
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| author | Yoshimitsu Sagara Tatsuya Muramatsu Nobuyuki Tamaoki |
| author_facet | Yoshimitsu Sagara Tatsuya Muramatsu Nobuyuki Tamaoki |
| author_sort | Yoshimitsu Sagara |
| collection | DOAJ |
| description | Photoluminescent nematic liquid crystals have been an attractive research target for decades, because of their potential applications in optoelectrical devices. Integration of luminescent motifs into cyclic structures is a promising approach to induce low-ordered liquid-crystalline phases, even though relatively large and rigid luminophores are used as emitters. Here, we demonstrate a 1,6-diphenylpyrene-based, unsymmetric cyclophane showing a stable nematic phase at room temperature and exhibiting strong photoluminescence from the condensed state. The observed sky-blue photoluminescence was dominated by the emission species ascribed to assembled luminophores rather than monomers. |
| first_indexed | 2024-04-13T06:39:08Z |
| format | Article |
| id | doaj.art-1b47fbec6b444168911d1b3b62498ead |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-13T06:39:08Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-1b47fbec6b444168911d1b3b62498ead2022-12-22T02:57:47ZengMDPI AGCrystals2073-43522019-02-01929210.3390/cryst9020092cryst9020092A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room TemperatureYoshimitsu Sagara0Tatsuya Muramatsu1Nobuyuki Tamaoki2Research Institute for Electronic Science, Hokkaido University, N20, W10, Kita-Ku, Sapporo, Hokkaido 001-0020, JapanResearch Institute for Electronic Science, Hokkaido University, N20, W10, Kita-Ku, Sapporo, Hokkaido 001-0020, JapanResearch Institute for Electronic Science, Hokkaido University, N20, W10, Kita-Ku, Sapporo, Hokkaido 001-0020, JapanPhotoluminescent nematic liquid crystals have been an attractive research target for decades, because of their potential applications in optoelectrical devices. Integration of luminescent motifs into cyclic structures is a promising approach to induce low-ordered liquid-crystalline phases, even though relatively large and rigid luminophores are used as emitters. Here, we demonstrate a 1,6-diphenylpyrene-based, unsymmetric cyclophane showing a stable nematic phase at room temperature and exhibiting strong photoluminescence from the condensed state. The observed sky-blue photoluminescence was dominated by the emission species ascribed to assembled luminophores rather than monomers.https://www.mdpi.com/2073-4352/9/2/92liquid crystalphotoluminescencepyrenefluorescencecyclophane |
| spellingShingle | Yoshimitsu Sagara Tatsuya Muramatsu Nobuyuki Tamaoki A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room Temperature Crystals liquid crystal photoluminescence pyrene fluorescence cyclophane |
| title | A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room Temperature |
| title_full | A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room Temperature |
| title_fullStr | A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room Temperature |
| title_full_unstemmed | A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room Temperature |
| title_short | A 1,6-Diphenylpyrene-Based, Photoluminescent Cyclophane Showing a Nematic Liquid-Crystalline Phase at Room Temperature |
| title_sort | 1 6 diphenylpyrene based photoluminescent cyclophane showing a nematic liquid crystalline phase at room temperature |
| topic | liquid crystal photoluminescence pyrene fluorescence cyclophane |
| url | https://www.mdpi.com/2073-4352/9/2/92 |
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