Observation of the triplet energy transfer in orthogonal photoexcited iodinated-BODIPY dimers
Intramolecular charge and energy transfer processes initiated by light absorption can change the photosensitization properties of molecular conjugates. Transient optical and electron paramagnetic resonance (TREPR) spectroscopies are well suited for the study of these processes. In the TREPR spectra...
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| Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2022-12, Vol.25 (1), p.29-216 |
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| creator | Sukhanov, Andrey A Cao, Huaiman Zhang, Xue Zhao, Jianzhang Kandrashkin, Yuri E |
| description | Intramolecular charge and energy transfer processes initiated by light absorption can change the photosensitization properties of molecular conjugates. Transient optical and electron paramagnetic resonance (TREPR) spectroscopies are well suited for the study of these processes. In the TREPR spectra of the triplet state of an iodinated BODIPY dimer, we have observed the effect of the averaging of the zero-field (ZFS) parameter
E
, which becomes more efficient with increasing temperature. This property is associated with triplet energy transfer from one chromophore in the dimer to another, implying the presence of a dynamic equilibrium between the two chromophores of the dimer. From the comparison of the ZFS parameters of the monomer and the dimer, the rates of the reversible hopping are derived within the framework of a two-site model. The obtained data indicate that the triplet states are separated by an energy barrier of
ca.
70 K (
ca.
0.006 eV) and that below this temperature energy transfer occurs
via
tunneling.
The reversible intramolecular energy transfer process between the two triplet states localized on the highly identical chromophores in Bodipy dimer was observed with TREPR spectroscopies. |
| doi_str_mv | 10.1039/d2cp04824h |
| format | Article |
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E
, which becomes more efficient with increasing temperature. This property is associated with triplet energy transfer from one chromophore in the dimer to another, implying the presence of a dynamic equilibrium between the two chromophores of the dimer. From the comparison of the ZFS parameters of the monomer and the dimer, the rates of the reversible hopping are derived within the framework of a two-site model. The obtained data indicate that the triplet states are separated by an energy barrier of
ca.
70 K (
ca.
0.006 eV) and that below this temperature energy transfer occurs
via
tunneling.
The reversible intramolecular energy transfer process between the two triplet states localized on the highly identical chromophores in Bodipy dimer was observed with TREPR spectroscopies.</description><identifier>ISSN: 1463-9076</identifier><identifier>EISSN: 1463-9084</identifier><identifier>DOI: 10.1039/d2cp04824h</identifier><identifier>PMID: 36511139</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Atomic energy levels ; Charge transfer ; Chromophores ; Dimers ; Electromagnetic absorption ; Electron paramagnetic resonance ; Energy transfer ; Optical properties ; Parameters</subject><ispartof>Physical chemistry chemical physics : PCCP, 2022-12, Vol.25 (1), p.29-216</ispartof><rights>Copyright Royal Society of Chemistry 2023</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-704000eb3f25f9ab042d4a027666065fe59526e2d43f669d29bafe7a02c9d3d53</citedby><cites>FETCH-LOGICAL-c337t-704000eb3f25f9ab042d4a027666065fe59526e2d43f669d29bafe7a02c9d3d53</cites><orcidid>0000-0003-3681-202X ; 0000-0002-5405-6398 ; 0000-0002-0536-2428 ; 0000-0001-8927-3715 ; 0000-0002-6470-5769</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36511139$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sukhanov, Andrey A</creatorcontrib><creatorcontrib>Cao, Huaiman</creatorcontrib><creatorcontrib>Zhang, Xue</creatorcontrib><creatorcontrib>Zhao, Jianzhang</creatorcontrib><creatorcontrib>Kandrashkin, Yuri E</creatorcontrib><title>Observation of the triplet energy transfer in orthogonal photoexcited iodinated-BODIPY dimers</title><title>Physical chemistry chemical physics : PCCP</title><addtitle>Phys Chem Chem Phys</addtitle><description>Intramolecular charge and energy transfer processes initiated by light absorption can change the photosensitization properties of molecular conjugates. Transient optical and electron paramagnetic resonance (TREPR) spectroscopies are well suited for the study of these processes. In the TREPR spectra of the triplet state of an iodinated BODIPY dimer, we have observed the effect of the averaging of the zero-field (ZFS) parameter
E
, which becomes more efficient with increasing temperature. This property is associated with triplet energy transfer from one chromophore in the dimer to another, implying the presence of a dynamic equilibrium between the two chromophores of the dimer. From the comparison of the ZFS parameters of the monomer and the dimer, the rates of the reversible hopping are derived within the framework of a two-site model. The obtained data indicate that the triplet states are separated by an energy barrier of
ca.
70 K (
ca.
0.006 eV) and that below this temperature energy transfer occurs
via
tunneling.
The reversible intramolecular energy transfer process between the two triplet states localized on the highly identical chromophores in Bodipy dimer was observed with TREPR spectroscopies.</description><subject>Atomic energy levels</subject><subject>Charge transfer</subject><subject>Chromophores</subject><subject>Dimers</subject><subject>Electromagnetic absorption</subject><subject>Electron paramagnetic resonance</subject><subject>Energy transfer</subject><subject>Optical properties</subject><subject>Parameters</subject><issn>1463-9076</issn><issn>1463-9084</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpd0UtLAzEQB_Agiu-Ld2XBiwireW3WHLW-CkI96MGDLNnNpI1sN2uSin57Y1sreMok-TFM_kHogOAzgpk817TpMb-gfLKGtgkXLJf4gq-v6lJsoZ0Q3jDGpCBsE20xURBCmNxGr6M6gP9Q0boucyaLE8iit30LMYMO_PgrbVUXDPjMJuHjxI1dp9qsn7jo4LOxEXRmnbadSlV-NboePr5k2k7Bhz20YVQbYH-57qLn25unwX3-MLobDi4f8oaxMuYl5mk2qJmhhZGqxpxqrjAthRBYFAYKWVAB6ZAZIaSmslYGyiQaqZku2C46WfTtvXufQYjV1IYG2lZ14GahomXBMZesxIke_6NvbubTg-ZK4BJLIZI6XajGuxA8mKr3dqr8V0Vw9RN6dU0Hj_PQ7xM-Wrac1VPQK_qbcgKHC-BDs7r9-zX2DY54hdw</recordid><startdate>20221221</startdate><enddate>20221221</enddate><creator>Sukhanov, Andrey A</creator><creator>Cao, Huaiman</creator><creator>Zhang, Xue</creator><creator>Zhao, Jianzhang</creator><creator>Kandrashkin, Yuri E</creator><general>Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-3681-202X</orcidid><orcidid>https://orcid.org/0000-0002-5405-6398</orcidid><orcidid>https://orcid.org/0000-0002-0536-2428</orcidid><orcidid>https://orcid.org/0000-0001-8927-3715</orcidid><orcidid>https://orcid.org/0000-0002-6470-5769</orcidid></search><sort><creationdate>20221221</creationdate><title>Observation of the triplet energy transfer in orthogonal photoexcited iodinated-BODIPY dimers</title><author>Sukhanov, Andrey A ; Cao, Huaiman ; Zhang, Xue ; Zhao, Jianzhang ; Kandrashkin, Yuri E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-704000eb3f25f9ab042d4a027666065fe59526e2d43f669d29bafe7a02c9d3d53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Atomic energy levels</topic><topic>Charge transfer</topic><topic>Chromophores</topic><topic>Dimers</topic><topic>Electromagnetic absorption</topic><topic>Electron paramagnetic resonance</topic><topic>Energy transfer</topic><topic>Optical properties</topic><topic>Parameters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sukhanov, Andrey A</creatorcontrib><creatorcontrib>Cao, Huaiman</creatorcontrib><creatorcontrib>Zhang, Xue</creatorcontrib><creatorcontrib>Zhao, Jianzhang</creatorcontrib><creatorcontrib>Kandrashkin, Yuri E</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Physical chemistry chemical physics : PCCP</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sukhanov, Andrey A</au><au>Cao, Huaiman</au><au>Zhang, Xue</au><au>Zhao, Jianzhang</au><au>Kandrashkin, Yuri E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of the triplet energy transfer in orthogonal photoexcited iodinated-BODIPY dimers</atitle><jtitle>Physical chemistry chemical physics : PCCP</jtitle><addtitle>Phys Chem Chem Phys</addtitle><date>2022-12-21</date><risdate>2022</risdate><volume>25</volume><issue>1</issue><spage>29</spage><epage>216</epage><pages>29-216</pages><issn>1463-9076</issn><eissn>1463-9084</eissn><abstract>Intramolecular charge and energy transfer processes initiated by light absorption can change the photosensitization properties of molecular conjugates. Transient optical and electron paramagnetic resonance (TREPR) spectroscopies are well suited for the study of these processes. In the TREPR spectra of the triplet state of an iodinated BODIPY dimer, we have observed the effect of the averaging of the zero-field (ZFS) parameter
E
, which becomes more efficient with increasing temperature. This property is associated with triplet energy transfer from one chromophore in the dimer to another, implying the presence of a dynamic equilibrium between the two chromophores of the dimer. From the comparison of the ZFS parameters of the monomer and the dimer, the rates of the reversible hopping are derived within the framework of a two-site model. The obtained data indicate that the triplet states are separated by an energy barrier of
ca.
70 K (
ca.
0.006 eV) and that below this temperature energy transfer occurs
via
tunneling.
The reversible intramolecular energy transfer process between the two triplet states localized on the highly identical chromophores in Bodipy dimer was observed with TREPR spectroscopies.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>36511139</pmid><doi>10.1039/d2cp04824h</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-3681-202X</orcidid><orcidid>https://orcid.org/0000-0002-5405-6398</orcidid><orcidid>https://orcid.org/0000-0002-0536-2428</orcidid><orcidid>https://orcid.org/0000-0001-8927-3715</orcidid><orcidid>https://orcid.org/0000-0002-6470-5769</orcidid></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Atomic energy levels Charge transfer Chromophores Dimers Electromagnetic absorption Electron paramagnetic resonance Energy transfer Optical properties Parameters |
| title | Observation of the triplet energy transfer in orthogonal photoexcited iodinated-BODIPY dimers |
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