Chiroptical properties of the ground and excited states of two thia-bridged triarylamine heterohelicenes
[Display omitted] •Chiroptical Spectra performed on Thia-bridged Triarylamino Heterohelicenes (TBTA-HELI).•TBTA-HELI are configurationally more stable than plain helicenes of the same size.•TBTA-HELI exhibit larger CPL than plain helicenes.•Excited states of TBTA-HELI are dissymmetric, while ground...
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| Veröffentlicht in: | Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 2016-12, Vol.331, p.138-145 |
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| container_title | Journal of photochemistry and photobiology. A, Chemistry. |
| container_volume | 331 |
| creator | Longhi, Giovanna Castiglioni, Ettore Villani, Claudio Sabia, Rocchina Menichetti, Stefano Viglianisi, Caterina Devlin, Frank Abbate, Sergio |
| description | [Display omitted]
•Chiroptical Spectra performed on Thia-bridged Triarylamino Heterohelicenes (TBTA-HELI).•TBTA-HELI are configurationally more stable than plain helicenes of the same size.•TBTA-HELI exhibit larger CPL than plain helicenes.•Excited states of TBTA-HELI are dissymmetric, while ground states are symmetric.
Two thia-heterohelicenes of different length, namely a hetero [4]-helicene (1), and a hetero [6]-helicene (2) are studied by electronic circular dichroism (ECD), circularly polarized luminescence (CPL), vibrational circular dichroism (VCD) and optical rotation (OR). It is found that the ECD and VCD spectra are characteristically different from the corresponding spectra of the parent helicene molecules, indicative of the presence of hetero atoms. CPL spectra are discussed on the basis of DFT calculation results. The sign of the OR is different for the two thiaheterohelicenes and is correctly predicted by DFT calculations. |
| doi_str_mv | 10.1016/j.jphotochem.2015.12.011 |
| format | Article |
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•Chiroptical Spectra performed on Thia-bridged Triarylamino Heterohelicenes (TBTA-HELI).•TBTA-HELI are configurationally more stable than plain helicenes of the same size.•TBTA-HELI exhibit larger CPL than plain helicenes.•Excited states of TBTA-HELI are dissymmetric, while ground states are symmetric.
Two thia-heterohelicenes of different length, namely a hetero [4]-helicene (1), and a hetero [6]-helicene (2) are studied by electronic circular dichroism (ECD), circularly polarized luminescence (CPL), vibrational circular dichroism (VCD) and optical rotation (OR). It is found that the ECD and VCD spectra are characteristically different from the corresponding spectra of the parent helicene molecules, indicative of the presence of hetero atoms. CPL spectra are discussed on the basis of DFT calculation results. The sign of the OR is different for the two thiaheterohelicenes and is correctly predicted by DFT calculations.</description><identifier>ISSN: 1010-6030</identifier><identifier>EISSN: 1873-2666</identifier><identifier>DOI: 10.1016/j.jphotochem.2015.12.011</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Chemical compounds ; Chemical synthesis ; Circular dichroism ; Circular polarization ; Circularly polarized luminescence ; DFT calculations ; Dichroism ; Hetero-helicenes ; Mathematical analysis ; Optical properties ; Optical rotation ; Spectra ; Studies ; Thia-bridged triarylamine</subject><ispartof>Journal of photochemistry and photobiology. A, Chemistry., 2016-12, Vol.331, p.138-145</ispartof><rights>2016 Elsevier B.V.</rights><rights>Copyright Elsevier BV Dec 1, 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c412t-1ef36153719cffe4fae08363e0a914a222b527d33176da8caaaec2482219dbaa3</citedby><cites>FETCH-LOGICAL-c412t-1ef36153719cffe4fae08363e0a914a222b527d33176da8caaaec2482219dbaa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jphotochem.2015.12.011$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids></links><search><creatorcontrib>Longhi, Giovanna</creatorcontrib><creatorcontrib>Castiglioni, Ettore</creatorcontrib><creatorcontrib>Villani, Claudio</creatorcontrib><creatorcontrib>Sabia, Rocchina</creatorcontrib><creatorcontrib>Menichetti, Stefano</creatorcontrib><creatorcontrib>Viglianisi, Caterina</creatorcontrib><creatorcontrib>Devlin, Frank</creatorcontrib><creatorcontrib>Abbate, Sergio</creatorcontrib><title>Chiroptical properties of the ground and excited states of two thia-bridged triarylamine heterohelicenes</title><title>Journal of photochemistry and photobiology. A, Chemistry.</title><description>[Display omitted]
•Chiroptical Spectra performed on Thia-bridged Triarylamino Heterohelicenes (TBTA-HELI).•TBTA-HELI are configurationally more stable than plain helicenes of the same size.•TBTA-HELI exhibit larger CPL than plain helicenes.•Excited states of TBTA-HELI are dissymmetric, while ground states are symmetric.
Two thia-heterohelicenes of different length, namely a hetero [4]-helicene (1), and a hetero [6]-helicene (2) are studied by electronic circular dichroism (ECD), circularly polarized luminescence (CPL), vibrational circular dichroism (VCD) and optical rotation (OR). It is found that the ECD and VCD spectra are characteristically different from the corresponding spectra of the parent helicene molecules, indicative of the presence of hetero atoms. CPL spectra are discussed on the basis of DFT calculation results. The sign of the OR is different for the two thiaheterohelicenes and is correctly predicted by DFT calculations.</description><subject>Chemical compounds</subject><subject>Chemical synthesis</subject><subject>Circular dichroism</subject><subject>Circular polarization</subject><subject>Circularly polarized luminescence</subject><subject>DFT calculations</subject><subject>Dichroism</subject><subject>Hetero-helicenes</subject><subject>Mathematical analysis</subject><subject>Optical properties</subject><subject>Optical rotation</subject><subject>Spectra</subject><subject>Studies</subject><subject>Thia-bridged triarylamine</subject><issn>1010-6030</issn><issn>1873-2666</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqFUMtOwzAQjBBIlMI_WOKc4LVdJzlCxUuqxAXOlmtvGkdpXGyXx99j1EocOax2pZ2Z3ZmiIEAroCBvhmrY9T550-O2YhQWFbCKApwUM2hqXjIp5WmeKdBSUk7Pi4sYB0qpEAJmRb_sXfC75IweyS5PGJLDSHxHUo9kE_x-skTnwi_jEloSk05HwKfPIKfLdXB2k1cpOB2-R711E5IeEwbf4-gMThgvi7NOjxGvjn1evD3cvy6fytXL4_PydlUaASyVgB2XsOA1tKbrUHQaacMlR6pbEJoxtl6w2nIOtbS6MVprNEw0jEFr11rzeXF90M1m3vcYkxr8Pkz5pIKW14Iy0fKMag4oE3yMATu1C26bn1dA1W-ualB_uarfXBUwlXPN1LsDFbOLD4dBReNwMmhdQJOU9e5_kR8OQIin</recordid><startdate>20161201</startdate><enddate>20161201</enddate><creator>Longhi, Giovanna</creator><creator>Castiglioni, Ettore</creator><creator>Villani, Claudio</creator><creator>Sabia, Rocchina</creator><creator>Menichetti, Stefano</creator><creator>Viglianisi, Caterina</creator><creator>Devlin, Frank</creator><creator>Abbate, Sergio</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7T7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope></search><sort><creationdate>20161201</creationdate><title>Chiroptical properties of the ground and excited states of two thia-bridged triarylamine heterohelicenes</title><author>Longhi, Giovanna ; Castiglioni, Ettore ; Villani, Claudio ; Sabia, Rocchina ; Menichetti, Stefano ; Viglianisi, Caterina ; Devlin, Frank ; Abbate, Sergio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c412t-1ef36153719cffe4fae08363e0a914a222b527d33176da8caaaec2482219dbaa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Chemical compounds</topic><topic>Chemical synthesis</topic><topic>Circular dichroism</topic><topic>Circular polarization</topic><topic>Circularly polarized luminescence</topic><topic>DFT calculations</topic><topic>Dichroism</topic><topic>Hetero-helicenes</topic><topic>Mathematical analysis</topic><topic>Optical properties</topic><topic>Optical rotation</topic><topic>Spectra</topic><topic>Studies</topic><topic>Thia-bridged triarylamine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Longhi, Giovanna</creatorcontrib><creatorcontrib>Castiglioni, Ettore</creatorcontrib><creatorcontrib>Villani, Claudio</creatorcontrib><creatorcontrib>Sabia, Rocchina</creatorcontrib><creatorcontrib>Menichetti, Stefano</creatorcontrib><creatorcontrib>Viglianisi, Caterina</creatorcontrib><creatorcontrib>Devlin, Frank</creatorcontrib><creatorcontrib>Abbate, Sergio</creatorcontrib><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of photochemistry and photobiology. A, Chemistry.</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Longhi, Giovanna</au><au>Castiglioni, Ettore</au><au>Villani, Claudio</au><au>Sabia, Rocchina</au><au>Menichetti, Stefano</au><au>Viglianisi, Caterina</au><au>Devlin, Frank</au><au>Abbate, Sergio</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Chiroptical properties of the ground and excited states of two thia-bridged triarylamine heterohelicenes</atitle><jtitle>Journal of photochemistry and photobiology. A, Chemistry.</jtitle><date>2016-12-01</date><risdate>2016</risdate><volume>331</volume><spage>138</spage><epage>145</epage><pages>138-145</pages><issn>1010-6030</issn><eissn>1873-2666</eissn><abstract>[Display omitted]
•Chiroptical Spectra performed on Thia-bridged Triarylamino Heterohelicenes (TBTA-HELI).•TBTA-HELI are configurationally more stable than plain helicenes of the same size.•TBTA-HELI exhibit larger CPL than plain helicenes.•Excited states of TBTA-HELI are dissymmetric, while ground states are symmetric.
Two thia-heterohelicenes of different length, namely a hetero [4]-helicene (1), and a hetero [6]-helicene (2) are studied by electronic circular dichroism (ECD), circularly polarized luminescence (CPL), vibrational circular dichroism (VCD) and optical rotation (OR). It is found that the ECD and VCD spectra are characteristically different from the corresponding spectra of the parent helicene molecules, indicative of the presence of hetero atoms. CPL spectra are discussed on the basis of DFT calculation results. The sign of the OR is different for the two thiaheterohelicenes and is correctly predicted by DFT calculations.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jphotochem.2015.12.011</doi><tpages>8</tpages></addata></record> |
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| subjects | Chemical compounds Chemical synthesis Circular dichroism Circular polarization Circularly polarized luminescence DFT calculations Dichroism Hetero-helicenes Mathematical analysis Optical properties Optical rotation Spectra Studies Thia-bridged triarylamine |
| title | Chiroptical properties of the ground and excited states of two thia-bridged triarylamine heterohelicenes |
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