Wavelength-dependent photocycloreversion of the endoperoxides of 1,2,3,4-tetramethylanthracene and 1,2,3,4-tetramethyl-9,10-diphenylanthracene
A pronounced, graduated wavelength dependence of the quantum yield Q c of cycloreversion of the endoperoxides (POs) of 1,2,3,4-tetramethylanthracene (TMAPO) and 1,2,3,4-tetramethyl-9,10-diphenylanthracene (TMDPAPO) was observed. A comparison of the excited singlet state energies of the naphthalene c...
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| Veröffentlicht in: | Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 1992-02, Vol.63 (3), p.319-325 |
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| container_issue | 3 |
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| container_title | Journal of photochemistry and photobiology. A, Chemistry. |
| container_volume | 63 |
| creator | Afshari, E. Brauer, H.-D. Schmidt, R. Lachgar, M. Rigaudy, J. |
| description | A pronounced, graduated wavelength dependence of the quantum yield
Q
c of cycloreversion of the endoperoxides (POs) of 1,2,3,4-tetramethylanthracene (TMAPO) and 1,2,3,4-tetramethyl-9,10-diphenylanthracene (TMDPAPO) was observed. A comparison of the excited singlet state energies of the naphthalene chromophore of TMDPAPO with the steps in the graduation of
Q
c leads to an evaluation of the cycloreversion efficiencies from each of the upper excited singlet states S
n:
E
c(S
2) = 0.13,
E
c(S
3) = 0.07 and
E
c(S
4) = 0.67. These values are compatible with recent results of time-resolved measurements according to which the first C-O bond in PO cycloreversion cleaves within a time domain of about 10
−13 s. |
| doi_str_mv | 10.1016/1010-6030(92)85197-3 |
| format | Article |
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Q
c of cycloreversion of the endoperoxides (POs) of 1,2,3,4-tetramethylanthracene (TMAPO) and 1,2,3,4-tetramethyl-9,10-diphenylanthracene (TMDPAPO) was observed. A comparison of the excited singlet state energies of the naphthalene chromophore of TMDPAPO with the steps in the graduation of
Q
c leads to an evaluation of the cycloreversion efficiencies from each of the upper excited singlet states S
n:
E
c(S
2) = 0.13,
E
c(S
3) = 0.07 and
E
c(S
4) = 0.67. These values are compatible with recent results of time-resolved measurements according to which the first C-O bond in PO cycloreversion cleaves within a time domain of about 10
−13 s.</description><identifier>ISSN: 1010-6030</identifier><identifier>EISSN: 1873-2666</identifier><identifier>DOI: 10.1016/1010-6030(92)85197-3</identifier><identifier>CODEN: JPPCEJ</identifier><language>eng</language><publisher>LAUSANNE 1: Elsevier B.V</publisher><subject>Chemistry ; Chemistry, Physical ; Exact sciences and technology ; General and physical chemistry ; Photochemistry ; Physical chemistry of induced reactions (with radiations, particles and ultrasonics) ; Physical Sciences ; Science & Technology</subject><ispartof>Journal of photochemistry and photobiology. A, Chemistry., 1992-02, Vol.63 (3), p.319-325</ispartof><rights>1992</rights><rights>1992 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>8</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wosA1992HG63600007</woscitedreferencesoriginalsourcerecordid><citedby>FETCH-LOGICAL-c333t-e3147f61d4f2370e5d239856b8f962b7afb5eaae05fceffd7c7896d3ed7354603</citedby><cites>FETCH-LOGICAL-c333t-e3147f61d4f2370e5d239856b8f962b7afb5eaae05fceffd7c7896d3ed7354603</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/1010-6030(92)85197-3$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3552,27199,27931,27932,46002</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=5250683$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Afshari, E.</creatorcontrib><creatorcontrib>Brauer, H.-D.</creatorcontrib><creatorcontrib>Schmidt, R.</creatorcontrib><creatorcontrib>Lachgar, M.</creatorcontrib><creatorcontrib>Rigaudy, J.</creatorcontrib><title>Wavelength-dependent photocycloreversion of the endoperoxides of 1,2,3,4-tetramethylanthracene and 1,2,3,4-tetramethyl-9,10-diphenylanthracene</title><title>Journal of photochemistry and photobiology. A, Chemistry.</title><addtitle>J PHOTOCH PHOTOBIO A</addtitle><description>A pronounced, graduated wavelength dependence of the quantum yield
Q
c of cycloreversion of the endoperoxides (POs) of 1,2,3,4-tetramethylanthracene (TMAPO) and 1,2,3,4-tetramethyl-9,10-diphenylanthracene (TMDPAPO) was observed. A comparison of the excited singlet state energies of the naphthalene chromophore of TMDPAPO with the steps in the graduation of
Q
c leads to an evaluation of the cycloreversion efficiencies from each of the upper excited singlet states S
n:
E
c(S
2) = 0.13,
E
c(S
3) = 0.07 and
E
c(S
4) = 0.67. These values are compatible with recent results of time-resolved measurements according to which the first C-O bond in PO cycloreversion cleaves within a time domain of about 10
−13 s.</description><subject>Chemistry</subject><subject>Chemistry, Physical</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Photochemistry</subject><subject>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</subject><subject>Physical Sciences</subject><subject>Science & Technology</subject><issn>1010-6030</issn><issn>1873-2666</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><sourceid>EZCTM</sourceid><recordid>eNqNkc9qFTEUhwdRsFbfwMUsXCi90fyZSSYboVxsKxTcWLoMuclJJ2WaDEl62_sSPrOZ3lq6EHFzTjh8X0h-p2neE_yZYMK_1IIRxwx_lPTT0BMpEHvRHJBBMEQ55y_r-Q_yunmT8zXGuOs6ctD8utRbmCBclRFZmCFYCKWdx1ii2ZkpJthCyj6GNrq2jNBWIs6Q4r23kJchWdEVW3WoQEn6Bsq4m3QoY9IGArQ62L8RSK7qe6yfRwjP-bfNK6enDO8e-2FzcfLt5_oMnf84_b4-PkeGMVYQMNIJx4ntHGUCQ28pk0PPN4OTnG6EdpsetAbcOwPOWWHEILllYAXruxrDYdPt7zUp5pzAqTn5G512imC1ZLoUrJbAlKTqIVPFqvZhr806Gz25pIPx-cntaY_5sGBHe-wONtFl4yEYeKKOiZT07JQzXreARaWH_6fXvuhS17GOt6FU9etehZrV1kNSj7r1CUxRNvp_f-g3MtStkg</recordid><startdate>19920228</startdate><enddate>19920228</enddate><creator>Afshari, E.</creator><creator>Brauer, H.-D.</creator><creator>Schmidt, R.</creator><creator>Lachgar, M.</creator><creator>Rigaudy, J.</creator><general>Elsevier B.V</general><general>Elsevier</general><general>Elsevier Science</general><scope>BLEPL</scope><scope>DTL</scope><scope>EZCTM</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19920228</creationdate><title>Wavelength-dependent photocycloreversion of the endoperoxides of 1,2,3,4-tetramethylanthracene and 1,2,3,4-tetramethyl-9,10-diphenylanthracene</title><author>Afshari, E. ; Brauer, H.-D. ; Schmidt, R. ; Lachgar, M. ; Rigaudy, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-e3147f61d4f2370e5d239856b8f962b7afb5eaae05fceffd7c7896d3ed7354603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>Chemistry</topic><topic>Chemistry, Physical</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Photochemistry</topic><topic>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</topic><topic>Physical Sciences</topic><topic>Science & Technology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Afshari, E.</creatorcontrib><creatorcontrib>Brauer, H.-D.</creatorcontrib><creatorcontrib>Schmidt, R.</creatorcontrib><creatorcontrib>Lachgar, M.</creatorcontrib><creatorcontrib>Rigaudy, J.</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 1992</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of photochemistry and photobiology. A, Chemistry.</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Afshari, E.</au><au>Brauer, H.-D.</au><au>Schmidt, R.</au><au>Lachgar, M.</au><au>Rigaudy, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Wavelength-dependent photocycloreversion of the endoperoxides of 1,2,3,4-tetramethylanthracene and 1,2,3,4-tetramethyl-9,10-diphenylanthracene</atitle><jtitle>Journal of photochemistry and photobiology. A, Chemistry.</jtitle><stitle>J PHOTOCH PHOTOBIO A</stitle><date>1992-02-28</date><risdate>1992</risdate><volume>63</volume><issue>3</issue><spage>319</spage><epage>325</epage><pages>319-325</pages><issn>1010-6030</issn><eissn>1873-2666</eissn><coden>JPPCEJ</coden><abstract>A pronounced, graduated wavelength dependence of the quantum yield
Q
c of cycloreversion of the endoperoxides (POs) of 1,2,3,4-tetramethylanthracene (TMAPO) and 1,2,3,4-tetramethyl-9,10-diphenylanthracene (TMDPAPO) was observed. A comparison of the excited singlet state energies of the naphthalene chromophore of TMDPAPO with the steps in the graduation of
Q
c leads to an evaluation of the cycloreversion efficiencies from each of the upper excited singlet states S
n:
E
c(S
2) = 0.13,
E
c(S
3) = 0.07 and
E
c(S
4) = 0.67. These values are compatible with recent results of time-resolved measurements according to which the first C-O bond in PO cycloreversion cleaves within a time domain of about 10
−13 s.</abstract><cop>LAUSANNE 1</cop><pub>Elsevier B.V</pub><doi>10.1016/1010-6030(92)85197-3</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of photochemistry and photobiology. A, Chemistry., 1992-02, Vol.63 (3), p.319-325 |
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| source | Web of Science - Science Citation Index Expanded - 1992<img src="https://exlibris-pub.s3.amazonaws.com/fromwos-v2.jpg" />; Access via ScienceDirect (Elsevier) |
| subjects | Chemistry Chemistry, Physical Exact sciences and technology General and physical chemistry Photochemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Physical Sciences Science & Technology |
| title | Wavelength-dependent photocycloreversion of the endoperoxides of 1,2,3,4-tetramethylanthracene and 1,2,3,4-tetramethyl-9,10-diphenylanthracene |
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