Reversible Vapochromic Luminescence Accompanied by Planar Half‐Chair Conformational Change of a Propeller‐Shaped Boron β‐Diketiminate Complex
Leakage of volatile organic compounds (VOCs) is one of the most severe industrial problems, because it can cause environmental pollution, global warming, fire, and explosion. Hence, the visualization of leakage is an essential technology to detect it at an early stage. Molecular crystals, fluorescen...
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| Veröffentlicht in: | Chemistry : a European journal 2021-06, Vol.27 (36), p.9302-9312 |
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| creator | Ito, Shunichiro Yaegashi, Misao Tanaka, Kazuo Chujo, Yoshiki |
| description | Leakage of volatile organic compounds (VOCs) is one of the most severe industrial problems, because it can cause environmental pollution, global warming, fire, and explosion. Hence, the visualization of leakage is an essential technology to detect it at an early stage. Molecular crystals, fluorescence color of which can be changed by the exposure to VOCs could potentially serve as the sensing materials for realizing rapid and facile VOC detection. However, these materials usually require harsh conditions, such as heating or a vacuum, to recover their initial phases for reuse. Therefore, it remains a challenge to obtain completely reversible sensing systems without such energy‐consuming recycling processes. Herein, the reversible color change of fluorescence from the crystals of a propeller‐shaped boron β‐diketiminate complex is reported. The complex was crystallized in distinct crystalline phases having different luminescent colors. Importantly, these phases were interconverted very rapidly (time constant |
| doi_str_mv | 10.1002/chem.202101107 |
| format | Article |
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A propeller‐shaped boron β‐diketiminate complex exhibits a reversible color change of fluorescence originating from pseudopolymorphism. The emission color rapidly changes from green to blue when its pure crystals are exposed to an appropriate group of volatile organic compounds and vice versa. Such luminescent color changes are derived from crystal–crystal transitions accompanied by the planar‐to‐half‐chair conformational changes of the complex. The small energy differences between the conformers of the complex can afford this pseudopolymorphic behavior.</description><identifier>ISSN: 0947-6539</identifier><identifier>EISSN: 1521-3765</identifier><identifier>DOI: 10.1002/chem.202101107</identifier><identifier>PMID: 33960048</identifier><language>eng</language><publisher>Germany: Wiley Subscription Services, Inc</publisher><subject>Boron ; boron complexes ; Chemistry ; Climate change ; Color ; crystal transition ; Crystallization ; crystallization-induced emission ; Crystals ; Exposure ; Fluorescence ; Global warming ; Leakage ; Organic compounds ; Phases ; Time constant ; vapochromism ; Vapors ; VOCs ; Volatile organic compounds</subject><ispartof>Chemistry : a European journal, 2021-06, Vol.27 (36), p.9302-9312</ispartof><rights>2021 Wiley‐VCH GmbH</rights><rights>2021 Wiley-VCH GmbH.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5237-c6059b52e50200aae1edfc1a4165579c3d0e4245440bd98391b39f36ab33fcd63</citedby><cites>FETCH-LOGICAL-c5237-c6059b52e50200aae1edfc1a4165579c3d0e4245440bd98391b39f36ab33fcd63</cites><orcidid>0000-0003-3822-0247</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fchem.202101107$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fchem.202101107$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33960048$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ito, Shunichiro</creatorcontrib><creatorcontrib>Yaegashi, Misao</creatorcontrib><creatorcontrib>Tanaka, Kazuo</creatorcontrib><creatorcontrib>Chujo, Yoshiki</creatorcontrib><title>Reversible Vapochromic Luminescence Accompanied by Planar Half‐Chair Conformational Change of a Propeller‐Shaped Boron β‐Diketiminate Complex</title><title>Chemistry : a European journal</title><addtitle>Chemistry</addtitle><description>Leakage of volatile organic compounds (VOCs) is one of the most severe industrial problems, because it can cause environmental pollution, global warming, fire, and explosion. Hence, the visualization of leakage is an essential technology to detect it at an early stage. Molecular crystals, fluorescence color of which can be changed by the exposure to VOCs could potentially serve as the sensing materials for realizing rapid and facile VOC detection. However, these materials usually require harsh conditions, such as heating or a vacuum, to recover their initial phases for reuse. Therefore, it remains a challenge to obtain completely reversible sensing systems without such energy‐consuming recycling processes. Herein, the reversible color change of fluorescence from the crystals of a propeller‐shaped boron β‐diketiminate complex is reported. The complex was crystallized in distinct crystalline phases having different luminescent colors. Importantly, these phases were interconverted very rapidly (time constant <60 s) and repeatedly upon exposure to the vapors of the appropriate VOCs. The small energy differences between conformers of the complex could lead to this pseudopolymorphic behavior. This finding could be applied for the development of further eco‐friendly reversible sensing materials based on four‐coordinated boron complexes.
A propeller‐shaped boron β‐diketiminate complex exhibits a reversible color change of fluorescence originating from pseudopolymorphism. The emission color rapidly changes from green to blue when its pure crystals are exposed to an appropriate group of volatile organic compounds and vice versa. Such luminescent color changes are derived from crystal–crystal transitions accompanied by the planar‐to‐half‐chair conformational changes of the complex. The small energy differences between the conformers of the complex can afford this pseudopolymorphic behavior.</description><subject>Boron</subject><subject>boron complexes</subject><subject>Chemistry</subject><subject>Climate change</subject><subject>Color</subject><subject>crystal transition</subject><subject>Crystallization</subject><subject>crystallization-induced emission</subject><subject>Crystals</subject><subject>Exposure</subject><subject>Fluorescence</subject><subject>Global warming</subject><subject>Leakage</subject><subject>Organic compounds</subject><subject>Phases</subject><subject>Time constant</subject><subject>vapochromism</subject><subject>Vapors</subject><subject>VOCs</subject><subject>Volatile organic compounds</subject><issn>0947-6539</issn><issn>1521-3765</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkUuO00AQhlsIxGQGtixRS2zYOFQ_nV4OZoYgBTHitbXa7TLpoe32tBMgO47AgpNwEA7BSegowyCxYVVS6auv9Osn5AGDOQPgT9wa-zkHzoAxKG-RGVOcFaLU6jaZgZFloZUwR-R4mi4BwGgh7pIjIYwGkIsZ-f4aP2GafBOQvrdjdOsUe-_oatv7ASeHg0N66lzsRzt4bGmzoxfBDjbRpQ3dr6_fqrX1iVZx6GLq7cbHwQaal8MHpLGjll6kOGIImDL8Zm3HLHkaUxzozx9588x_xI3Pz-wGs6UfA365R-50Nkx4_3qekHfnZ2-rZbF69fxFdboqnOKiLJwGZRrFUQEHsBYZtp1jVjKtVGmcaAEll0pKaFqzEIY1wnRC20aIzrVanJDHB--Y4tUWp03d-xw55HwYt1PNFZdCM1ZCRh_9g17GbcpR95SUC7VguszU_EC5FKcpYVePyfc27WoG9b6vet9XfdNXPnh4rd02PbY3-J-CMmAOwGcfcPcfXV0tz17-lf8Gep2mUQ</recordid><startdate>20210625</startdate><enddate>20210625</enddate><creator>Ito, Shunichiro</creator><creator>Yaegashi, Misao</creator><creator>Tanaka, Kazuo</creator><creator>Chujo, Yoshiki</creator><general>Wiley Subscription Services, Inc</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-3822-0247</orcidid></search><sort><creationdate>20210625</creationdate><title>Reversible Vapochromic Luminescence Accompanied by Planar Half‐Chair Conformational Change of a Propeller‐Shaped Boron β‐Diketiminate Complex</title><author>Ito, Shunichiro ; Yaegashi, Misao ; Tanaka, Kazuo ; Chujo, Yoshiki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5237-c6059b52e50200aae1edfc1a4165579c3d0e4245440bd98391b39f36ab33fcd63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Boron</topic><topic>boron complexes</topic><topic>Chemistry</topic><topic>Climate change</topic><topic>Color</topic><topic>crystal transition</topic><topic>Crystallization</topic><topic>crystallization-induced emission</topic><topic>Crystals</topic><topic>Exposure</topic><topic>Fluorescence</topic><topic>Global warming</topic><topic>Leakage</topic><topic>Organic compounds</topic><topic>Phases</topic><topic>Time constant</topic><topic>vapochromism</topic><topic>Vapors</topic><topic>VOCs</topic><topic>Volatile organic compounds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ito, Shunichiro</creatorcontrib><creatorcontrib>Yaegashi, Misao</creatorcontrib><creatorcontrib>Tanaka, Kazuo</creatorcontrib><creatorcontrib>Chujo, Yoshiki</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Chemistry : a European journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ito, Shunichiro</au><au>Yaegashi, Misao</au><au>Tanaka, Kazuo</au><au>Chujo, Yoshiki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reversible Vapochromic Luminescence Accompanied by Planar Half‐Chair Conformational Change of a Propeller‐Shaped Boron β‐Diketiminate Complex</atitle><jtitle>Chemistry : a European journal</jtitle><addtitle>Chemistry</addtitle><date>2021-06-25</date><risdate>2021</risdate><volume>27</volume><issue>36</issue><spage>9302</spage><epage>9312</epage><pages>9302-9312</pages><issn>0947-6539</issn><eissn>1521-3765</eissn><abstract>Leakage of volatile organic compounds (VOCs) is one of the most severe industrial problems, because it can cause environmental pollution, global warming, fire, and explosion. Hence, the visualization of leakage is an essential technology to detect it at an early stage. Molecular crystals, fluorescence color of which can be changed by the exposure to VOCs could potentially serve as the sensing materials for realizing rapid and facile VOC detection. However, these materials usually require harsh conditions, such as heating or a vacuum, to recover their initial phases for reuse. Therefore, it remains a challenge to obtain completely reversible sensing systems without such energy‐consuming recycling processes. Herein, the reversible color change of fluorescence from the crystals of a propeller‐shaped boron β‐diketiminate complex is reported. The complex was crystallized in distinct crystalline phases having different luminescent colors. Importantly, these phases were interconverted very rapidly (time constant <60 s) and repeatedly upon exposure to the vapors of the appropriate VOCs. The small energy differences between conformers of the complex could lead to this pseudopolymorphic behavior. This finding could be applied for the development of further eco‐friendly reversible sensing materials based on four‐coordinated boron complexes.
A propeller‐shaped boron β‐diketiminate complex exhibits a reversible color change of fluorescence originating from pseudopolymorphism. The emission color rapidly changes from green to blue when its pure crystals are exposed to an appropriate group of volatile organic compounds and vice versa. Such luminescent color changes are derived from crystal–crystal transitions accompanied by the planar‐to‐half‐chair conformational changes of the complex. The small energy differences between the conformers of the complex can afford this pseudopolymorphic behavior.</abstract><cop>Germany</cop><pub>Wiley Subscription Services, Inc</pub><pmid>33960048</pmid><doi>10.1002/chem.202101107</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-3822-0247</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Boron boron complexes Chemistry Climate change Color crystal transition Crystallization crystallization-induced emission Crystals Exposure Fluorescence Global warming Leakage Organic compounds Phases Time constant vapochromism Vapors VOCs Volatile organic compounds |
| title | Reversible Vapochromic Luminescence Accompanied by Planar Half‐Chair Conformational Change of a Propeller‐Shaped Boron β‐Diketiminate Complex |
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