Photo-induced electron transfer in a diamino-substituted Ru(bpy)3[PF6]2 complex and its application as a triplet photosensitizer for nitric oxide (NO)-activated triplet—triplet annihilation upconversion
A system demonstrating Nitric Oxide (NO) activated Triplet-Triplet Annihilation (TTA) upconversion has been devised, based on a substituted [Ru II (bpy) 3 ](PF 6 ) 2 complex (bpy = 2,2′-dipyridine) bearing a single 1,2-diaminophenyl moiety as an NO activatable triplet photosensitizer ( Ru-1 ), and 9...
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| Veröffentlicht in: | Photochemical & photobiological sciences 2016-01, Vol.15 (8), p.995-1005 |
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| creator | Xu, Kejing Zhao, Jianzhang Moore, Evan G. |
| description | A system demonstrating Nitric Oxide (NO) activated Triplet-Triplet Annihilation (TTA) upconversion has been devised, based on a substituted [Ru
II
(bpy)
3
](PF
6
)
2
complex (bpy = 2,2′-dipyridine) bearing a single 1,2-diaminophenyl moiety as an NO activatable triplet photosensitizer (
Ru-1
), and 9,10-diphenylanthracene (DPA) as a triplet acceptor/emitter. The excited triplet state of
Ru-1
is significantly quenched (
Φ
T
∼ 22%) by a Photoinduced Electron Transfer (PET) reaction, as confirmed by steady state phosphorescence and transient absorption spectroscopy, and hence
Ru-1
does not function as a TTA upconversion sensitizer. However, in the presence of NO/O
2
, the 1,2-diaminophenyl group of
Ru-1
is transformed into a benzotriazole. This inhibits PET, and the triplet state quantum yield is increased to
ca.
85%, switching on the TTA upconversion process which increases by 10-fold. These processes were studied using a combination of steady state and time-resolved luminescence together with transient absorption spectroscopy on the nanosecond and femtosecond timescales. The energy level of the charge transfer state (CTS) for
Ru-1
was also obtained electrochemically, supporting the PET mechanism of triplet state quenching and hence the lack of TTA upconversion with
Ru-1
. |
| doi_str_mv | 10.1039/c6pp00153j |
| format | Article |
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II
(bpy)
3
](PF
6
)
2
complex (bpy = 2,2′-dipyridine) bearing a single 1,2-diaminophenyl moiety as an NO activatable triplet photosensitizer (
Ru-1
), and 9,10-diphenylanthracene (DPA) as a triplet acceptor/emitter. The excited triplet state of
Ru-1
is significantly quenched (
Φ
T
∼ 22%) by a Photoinduced Electron Transfer (PET) reaction, as confirmed by steady state phosphorescence and transient absorption spectroscopy, and hence
Ru-1
does not function as a TTA upconversion sensitizer. However, in the presence of NO/O
2
, the 1,2-diaminophenyl group of
Ru-1
is transformed into a benzotriazole. This inhibits PET, and the triplet state quantum yield is increased to
ca.
85%, switching on the TTA upconversion process which increases by 10-fold. These processes were studied using a combination of steady state and time-resolved luminescence together with transient absorption spectroscopy on the nanosecond and femtosecond timescales. The energy level of the charge transfer state (CTS) for
Ru-1
was also obtained electrochemically, supporting the PET mechanism of triplet state quenching and hence the lack of TTA upconversion with
Ru-1
.</description><identifier>ISSN: 1474-905X</identifier><identifier>EISSN: 1474-9092</identifier><identifier>DOI: 10.1039/c6pp00153j</identifier><identifier>PMID: 27387268</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Anthracenes - chemistry ; Biochemistry ; Biomaterials ; Chemistry ; Coordination Complexes - chemistry ; Electrochemical Techniques ; Electron Transport ; Lasers, Solid-State ; Nitric Oxide - chemistry ; Oxygen - chemistry ; Photolysis - radiation effects ; Photosensitizing Agents - chemistry ; Physical Chemistry ; Plant Sciences ; Quantum Theory ; Ruthenium - chemistry ; Spectrometry, Fluorescence ; Temperature ; Thermodynamics ; Time Factors</subject><ispartof>Photochemical & photobiological sciences, 2016-01, Vol.15 (8), p.995-1005</ispartof><rights>The Royal Society of Chemistry and Owner Societies 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c570t-5b4438abaf38826518bc43843bbdbcd86a451027976fe4a775d7bcc5889001263</citedby><cites>FETCH-LOGICAL-c570t-5b4438abaf38826518bc43843bbdbcd86a451027976fe4a775d7bcc5889001263</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1039/c6pp00153j$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1039/c6pp00153j$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27387268$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Xu, Kejing</creatorcontrib><creatorcontrib>Zhao, Jianzhang</creatorcontrib><creatorcontrib>Moore, Evan G.</creatorcontrib><title>Photo-induced electron transfer in a diamino-substituted Ru(bpy)3[PF6]2 complex and its application as a triplet photosensitizer for nitric oxide (NO)-activated triplet—triplet annihilation upconversion</title><title>Photochemical & photobiological sciences</title><addtitle>Photochem Photobiol Sci</addtitle><addtitle>Photochem Photobiol Sci</addtitle><description>A system demonstrating Nitric Oxide (NO) activated Triplet-Triplet Annihilation (TTA) upconversion has been devised, based on a substituted [Ru
II
(bpy)
3
](PF
6
)
2
complex (bpy = 2,2′-dipyridine) bearing a single 1,2-diaminophenyl moiety as an NO activatable triplet photosensitizer (
Ru-1
), and 9,10-diphenylanthracene (DPA) as a triplet acceptor/emitter. The excited triplet state of
Ru-1
is significantly quenched (
Φ
T
∼ 22%) by a Photoinduced Electron Transfer (PET) reaction, as confirmed by steady state phosphorescence and transient absorption spectroscopy, and hence
Ru-1
does not function as a TTA upconversion sensitizer. However, in the presence of NO/O
2
, the 1,2-diaminophenyl group of
Ru-1
is transformed into a benzotriazole. This inhibits PET, and the triplet state quantum yield is increased to
ca.
85%, switching on the TTA upconversion process which increases by 10-fold. These processes were studied using a combination of steady state and time-resolved luminescence together with transient absorption spectroscopy on the nanosecond and femtosecond timescales. The energy level of the charge transfer state (CTS) for
Ru-1
was also obtained electrochemically, supporting the PET mechanism of triplet state quenching and hence the lack of TTA upconversion with
Ru-1
.</description><subject>Anthracenes - chemistry</subject><subject>Biochemistry</subject><subject>Biomaterials</subject><subject>Chemistry</subject><subject>Coordination Complexes - chemistry</subject><subject>Electrochemical Techniques</subject><subject>Electron Transport</subject><subject>Lasers, Solid-State</subject><subject>Nitric Oxide - chemistry</subject><subject>Oxygen - chemistry</subject><subject>Photolysis - radiation effects</subject><subject>Photosensitizing Agents - chemistry</subject><subject>Physical Chemistry</subject><subject>Plant Sciences</subject><subject>Quantum Theory</subject><subject>Ruthenium - chemistry</subject><subject>Spectrometry, Fluorescence</subject><subject>Temperature</subject><subject>Thermodynamics</subject><subject>Time Factors</subject><issn>1474-905X</issn><issn>1474-9092</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkc1qFTEUx4Mo9kM3PoBkeauMJjP5mqUUq0KxRRQEkSHJZGwuM0nMR2m78iF8LJ_CJzGXe1s3LlwlJ-eX3x_OAeAJRi8w6vqXmoWAEKbd-h7Yx4STpkd9e__uTj_vgYOU1huGMP4Q7LW8E7xlYh_8Or_w2TfWjUWbEZrZ6By9gzlKlyYToXVQwtHKxTrfpKJStrnkin4oKxWuj7ov5yfsawu1X8JsrqB0I7Q5QRnCbLXMtspkLavRViDDsAlMxiWb7U0NmHyEztauhv7Kjgau3p8dNVJneyk3Obt_v3_8vDVI5-yFnbfuErR3lyamWjwCDyY5J_N4dx6CTyevPx6_bU7P3rw7fnXaaMpRbqgipBNSyakTomUUC6XrA-mUGpUeBZOEYtTynrPJEMk5HbnSmgrR1xG2rDsEq603RP-9mJSHxSZt5lk640sasMBYCEra_j9QJBhiFOGKPtuiOvqUopmGEO0i4_WA0bBZ9PB30RV-uvMWtZjxDr3dbAWeb4FUW-6bicPal-jqWP6l-wMKdrfg</recordid><startdate>20160101</startdate><enddate>20160101</enddate><creator>Xu, Kejing</creator><creator>Zhao, Jianzhang</creator><creator>Moore, Evan G.</creator><general>Springer International Publishing</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20160101</creationdate><title>Photo-induced electron transfer in a diamino-substituted Ru(bpy)3[PF6]2 complex and its application as a triplet photosensitizer for nitric oxide (NO)-activated triplet—triplet annihilation upconversion</title><author>Xu, Kejing ; Zhao, Jianzhang ; Moore, Evan G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c570t-5b4438abaf38826518bc43843bbdbcd86a451027976fe4a775d7bcc5889001263</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Anthracenes - chemistry</topic><topic>Biochemistry</topic><topic>Biomaterials</topic><topic>Chemistry</topic><topic>Coordination Complexes - chemistry</topic><topic>Electrochemical Techniques</topic><topic>Electron Transport</topic><topic>Lasers, Solid-State</topic><topic>Nitric Oxide - chemistry</topic><topic>Oxygen - chemistry</topic><topic>Photolysis - radiation effects</topic><topic>Photosensitizing Agents - chemistry</topic><topic>Physical Chemistry</topic><topic>Plant Sciences</topic><topic>Quantum Theory</topic><topic>Ruthenium - chemistry</topic><topic>Spectrometry, Fluorescence</topic><topic>Temperature</topic><topic>Thermodynamics</topic><topic>Time Factors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Kejing</creatorcontrib><creatorcontrib>Zhao, Jianzhang</creatorcontrib><creatorcontrib>Moore, Evan G.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Photochemical & photobiological sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xu, Kejing</au><au>Zhao, Jianzhang</au><au>Moore, Evan G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photo-induced electron transfer in a diamino-substituted Ru(bpy)3[PF6]2 complex and its application as a triplet photosensitizer for nitric oxide (NO)-activated triplet—triplet annihilation upconversion</atitle><jtitle>Photochemical & photobiological sciences</jtitle><stitle>Photochem Photobiol Sci</stitle><addtitle>Photochem Photobiol Sci</addtitle><date>2016-01-01</date><risdate>2016</risdate><volume>15</volume><issue>8</issue><spage>995</spage><epage>1005</epage><pages>995-1005</pages><issn>1474-905X</issn><eissn>1474-9092</eissn><abstract>A system demonstrating Nitric Oxide (NO) activated Triplet-Triplet Annihilation (TTA) upconversion has been devised, based on a substituted [Ru
II
(bpy)
3
](PF
6
)
2
complex (bpy = 2,2′-dipyridine) bearing a single 1,2-diaminophenyl moiety as an NO activatable triplet photosensitizer (
Ru-1
), and 9,10-diphenylanthracene (DPA) as a triplet acceptor/emitter. The excited triplet state of
Ru-1
is significantly quenched (
Φ
T
∼ 22%) by a Photoinduced Electron Transfer (PET) reaction, as confirmed by steady state phosphorescence and transient absorption spectroscopy, and hence
Ru-1
does not function as a TTA upconversion sensitizer. However, in the presence of NO/O
2
, the 1,2-diaminophenyl group of
Ru-1
is transformed into a benzotriazole. This inhibits PET, and the triplet state quantum yield is increased to
ca.
85%, switching on the TTA upconversion process which increases by 10-fold. These processes were studied using a combination of steady state and time-resolved luminescence together with transient absorption spectroscopy on the nanosecond and femtosecond timescales. The energy level of the charge transfer state (CTS) for
Ru-1
was also obtained electrochemically, supporting the PET mechanism of triplet state quenching and hence the lack of TTA upconversion with
Ru-1
.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><pmid>27387268</pmid><doi>10.1039/c6pp00153j</doi><tpages>11</tpages></addata></record> |
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| source | MEDLINE; Royal Society Of Chemistry Journals; SpringerLink Journals - AutoHoldings |
| subjects | Anthracenes - chemistry Biochemistry Biomaterials Chemistry Coordination Complexes - chemistry Electrochemical Techniques Electron Transport Lasers, Solid-State Nitric Oxide - chemistry Oxygen - chemistry Photolysis - radiation effects Photosensitizing Agents - chemistry Physical Chemistry Plant Sciences Quantum Theory Ruthenium - chemistry Spectrometry, Fluorescence Temperature Thermodynamics Time Factors |
| title | Photo-induced electron transfer in a diamino-substituted Ru(bpy)3[PF6]2 complex and its application as a triplet photosensitizer for nitric oxide (NO)-activated triplet—triplet annihilation upconversion |
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