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Combined Experimental and Theoretical Studies on Planar Chirality of Partially Overlapped C 2‑Symmetric [3.3](3,9)Dicarbazolophanes
Partially overlapped dicarbazolophanes exhibit a planar chirality. In this study, C 2-symmetrical [3.3](3,9)dicarbazolophane derivatives (CZ1–CZ3) have been optically resolved by preparative chiral high-performance liquid chromatography for the first time. In their circular dichroism (CD) spectra,...
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Published in: | The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2020-03, Vol.124 (10), p.2057-2063 |
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container_title | The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory |
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creator | Tani, Keita Imafuku, Risa Miyanaga, Kanae Masaki, Miyuki Eiraku Kato, Haruka Hori, Kazushige Kubono, Koji Taneda, Masatsugu Harada, Takunori Goto, Kenta Tani, Fumito Mori, Tadashi |
description | Partially overlapped dicarbazolophanes exhibit a planar chirality. In this study, C 2-symmetrical [3.3](3,9)dicarbazolophane derivatives (CZ1–CZ3) have been optically resolved by preparative chiral high-performance liquid chromatography for the first time. In their circular dichroism (CD) spectra, moderate Cotton effects (CEs) were observed for their 1Lb and 1La transitions (|Δε| = 10–12 and 51–57 M–1 cm–1, respectively), while intense CEs were notified in their 1B transitions (|Δε| = 156–216 M–1 cm–1), absorption dissymmetry (g abs) factors being in orders of 10–2. Circularly polarized luminescence spectrum was also obtained for cyanamide derivative CZ1, with a comparative luminescence dissymmetry (g lum) factor of 0.013. A computational investigation was applied to address the factors for such remarkable chiroptical responses in these dicarbazolophanes of planar chirality. Absolute configurations were unambiguously determined by the comparison of experimental and theoretical CD spectra, which was affirmed by the X-ray crystal structural analysis of enantiomerically pure sulfonamide derivative CZ2. |
doi_str_mv | 10.1021/acs.jpca.0c00286 |
format | article |
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In this study, C 2-symmetrical [3.3](3,9)dicarbazolophane derivatives (CZ1–CZ3) have been optically resolved by preparative chiral high-performance liquid chromatography for the first time. In their circular dichroism (CD) spectra, moderate Cotton effects (CEs) were observed for their 1Lb and 1La transitions (|Δε| = 10–12 and 51–57 M–1 cm–1, respectively), while intense CEs were notified in their 1B transitions (|Δε| = 156–216 M–1 cm–1), absorption dissymmetry (g abs) factors being in orders of 10–2. Circularly polarized luminescence spectrum was also obtained for cyanamide derivative CZ1, with a comparative luminescence dissymmetry (g lum) factor of 0.013. A computational investigation was applied to address the factors for such remarkable chiroptical responses in these dicarbazolophanes of planar chirality. Absolute configurations were unambiguously determined by the comparison of experimental and theoretical CD spectra, which was affirmed by the X-ray crystal structural analysis of enantiomerically pure sulfonamide derivative CZ2.</description><identifier>ISSN: 1089-5639</identifier><identifier>EISSN: 1520-5215</identifier><identifier>DOI: 10.1021/acs.jpca.0c00286</identifier><identifier>PMID: 32077298</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>The journal of physical chemistry. 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A, Molecules, spectroscopy, kinetics, environment, & general theory</title><addtitle>J. Phys. Chem. A</addtitle><description>Partially overlapped dicarbazolophanes exhibit a planar chirality. In this study, C 2-symmetrical [3.3](3,9)dicarbazolophane derivatives (CZ1–CZ3) have been optically resolved by preparative chiral high-performance liquid chromatography for the first time. In their circular dichroism (CD) spectra, moderate Cotton effects (CEs) were observed for their 1Lb and 1La transitions (|Δε| = 10–12 and 51–57 M–1 cm–1, respectively), while intense CEs were notified in their 1B transitions (|Δε| = 156–216 M–1 cm–1), absorption dissymmetry (g abs) factors being in orders of 10–2. Circularly polarized luminescence spectrum was also obtained for cyanamide derivative CZ1, with a comparative luminescence dissymmetry (g lum) factor of 0.013. A computational investigation was applied to address the factors for such remarkable chiroptical responses in these dicarbazolophanes of planar chirality. Absolute configurations were unambiguously determined by the comparison of experimental and theoretical CD spectra, which was affirmed by the X-ray crystal structural analysis of enantiomerically pure sulfonamide derivative CZ2.</description><issn>1089-5639</issn><issn>1520-5215</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kEtLw0AUhQdRtD72rmSWCk29M5M0yVJifYCg0LoSCTeTG5qSF5NUjCs3_gD_or_Eqa3uXN0H5xw4H2PHAkYCpDhH3Y4WjcYRaAAZjLfYQHgSHE8Kb9vuEISON1bhHttv2wUACCXdXbanJPi-DIMB-4jqMskrSvnktSGTl1R1WHCsUj6bU22oy7W9p90yzanldcUfCqzQ8GieGyzyrud1xh_QdDkWRc_vX8gU2DQ2MOLy6_1z2pcldSbX_EmN1POpGoZnlzbTJPhWF3Uzx4raQ7aTYdHS0WYesMerySy6ce7ur2-jizsHhRsEjp-5IqTMSwlEMiYvcFEBKcIQ01RLUD5mIelEQuoHYy29hIAC-3QJZCZRHTBY52pTt62hLG5sZTR9LCBeEY0t0XhFNN4QtZaTtaVZJiWlf4ZfhFYwXAt-rPXSVLbB_3nfrLaFCg</recordid><startdate>20200312</startdate><enddate>20200312</enddate><creator>Tani, Keita</creator><creator>Imafuku, Risa</creator><creator>Miyanaga, Kanae</creator><creator>Masaki, Miyuki Eiraku</creator><creator>Kato, Haruka</creator><creator>Hori, Kazushige</creator><creator>Kubono, Koji</creator><creator>Taneda, Masatsugu</creator><creator>Harada, Takunori</creator><creator>Goto, Kenta</creator><creator>Tani, Fumito</creator><creator>Mori, Tadashi</creator><general>American Chemical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-9166-2127</orcidid><orcidid>https://orcid.org/0000-0003-3918-0873</orcidid></search><sort><creationdate>20200312</creationdate><title>Combined Experimental and Theoretical Studies on Planar Chirality of Partially Overlapped C 2‑Symmetric [3.3](3,9)Dicarbazolophanes</title><author>Tani, Keita ; Imafuku, Risa ; Miyanaga, Kanae ; Masaki, Miyuki Eiraku ; Kato, Haruka ; Hori, Kazushige ; Kubono, Koji ; Taneda, Masatsugu ; Harada, Takunori ; Goto, Kenta ; Tani, Fumito ; Mori, Tadashi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a1488-7f419ef5de01b6e584a30e3ea9addc2037af9ecb20d786c25be0e87af4e02f2a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tani, Keita</creatorcontrib><creatorcontrib>Imafuku, Risa</creatorcontrib><creatorcontrib>Miyanaga, Kanae</creatorcontrib><creatorcontrib>Masaki, Miyuki Eiraku</creatorcontrib><creatorcontrib>Kato, Haruka</creatorcontrib><creatorcontrib>Hori, Kazushige</creatorcontrib><creatorcontrib>Kubono, Koji</creatorcontrib><creatorcontrib>Taneda, Masatsugu</creatorcontrib><creatorcontrib>Harada, Takunori</creatorcontrib><creatorcontrib>Goto, Kenta</creatorcontrib><creatorcontrib>Tani, Fumito</creatorcontrib><creatorcontrib>Mori, Tadashi</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><jtitle>The journal of physical chemistry. 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A</addtitle><date>2020-03-12</date><risdate>2020</risdate><volume>124</volume><issue>10</issue><spage>2057</spage><epage>2063</epage><pages>2057-2063</pages><issn>1089-5639</issn><eissn>1520-5215</eissn><abstract>Partially overlapped dicarbazolophanes exhibit a planar chirality. In this study, C 2-symmetrical [3.3](3,9)dicarbazolophane derivatives (CZ1–CZ3) have been optically resolved by preparative chiral high-performance liquid chromatography for the first time. In their circular dichroism (CD) spectra, moderate Cotton effects (CEs) were observed for their 1Lb and 1La transitions (|Δε| = 10–12 and 51–57 M–1 cm–1, respectively), while intense CEs were notified in their 1B transitions (|Δε| = 156–216 M–1 cm–1), absorption dissymmetry (g abs) factors being in orders of 10–2. Circularly polarized luminescence spectrum was also obtained for cyanamide derivative CZ1, with a comparative luminescence dissymmetry (g lum) factor of 0.013. A computational investigation was applied to address the factors for such remarkable chiroptical responses in these dicarbazolophanes of planar chirality. Absolute configurations were unambiguously determined by the comparison of experimental and theoretical CD spectra, which was affirmed by the X-ray crystal structural analysis of enantiomerically pure sulfonamide derivative CZ2.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>32077298</pmid><doi>10.1021/acs.jpca.0c00286</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-9166-2127</orcidid><orcidid>https://orcid.org/0000-0003-3918-0873</orcidid></addata></record> |
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title | Combined Experimental and Theoretical Studies on Planar Chirality of Partially Overlapped C 2‑Symmetric [3.3](3,9)Dicarbazolophanes |
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