Intramolecular photoassociation and photoinduced charge transfer in bridged diaryl compounds. 2. Charge transfer interactions in the lowest excited singlet state of dinaphthylamines

The formation of an intramolecular charge-transfer (CT) exciplex is demonstrated for 1,1{prime}-dinaphthylamine (1,1{prime}-DNA) and 2,2{prime}-dinaphthylamine (2,2{prime}-DNA) in the lowest excited singlet state using steady-state and picosecond time-resolved fluorescence spectroscopy. The exciplex...

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Veröffentlicht in:Journal of Physical Chemistry 1992-05, Vol.96 (11), p.4310-4321
Hauptverfasser: Dresner, Jozef, Modiano, Steven H, Lim, Edward C
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creator Dresner, Jozef
Modiano, Steven H
Lim, Edward C
description The formation of an intramolecular charge-transfer (CT) exciplex is demonstrated for 1,1{prime}-dinaphthylamine (1,1{prime}-DNA) and 2,2{prime}-dinaphthylamine (2,2{prime}-DNA) in the lowest excited singlet state using steady-state and picosecond time-resolved fluorescence spectroscopy. The exciplex is formed through a mutual reorientation of the two naphthalene rings. Differences in the rate of formation and relaxation of the CT state for 1,1{prime}-DNA and 2,2{prime}-DNA indicate the importance of the bridge position in this process. The comparison of the steady-state fluorescence of 2,2{prime}-DNA with that of its protonated form, as well as the fluorescence of 2,2{prime}-dinaphthyl ether and 2,2{prime}-dinaphthylmethane, show the role of the lone-pair electrons of the nitrogen atom in the exciplex formation. 18 refs., 20 figs., 5 tabs.
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The comparison of the steady-state fluorescence of 2,2{prime}-DNA with that of its protonated form, as well as the fluorescence of 2,2{prime}-dinaphthyl ether and 2,2{prime}-dinaphthylmethane, show the role of the lone-pair electrons of the nitrogen atom in the exciplex formation. 18 refs., 20 figs., 5 tabs.</description><identifier>ISSN: 0022-3654</identifier><identifier>EISSN: 1541-5740</identifier><identifier>DOI: 10.1021/j100190a039</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>40 CHEMISTRY ; AMINES ; AROMATICS ; CHARGE TRANSPORT ; NAPHTHYL RADICALS ; PHOTOCHEMISTRY</subject><ispartof>Journal of Physical Chemistry, 1992-05, Vol.96 (11), p.4310-4321</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a327t-889006345a5590e04ee6874209cb77e141994724895520362df59e1cbb780c593</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/j100190a039$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/j100190a039$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,885,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/555055$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Dresner, Jozef</creatorcontrib><creatorcontrib>Modiano, Steven H</creatorcontrib><creatorcontrib>Lim, Edward C</creatorcontrib><title>Intramolecular photoassociation and photoinduced charge transfer in bridged diaryl compounds. 2. 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subjects 40 CHEMISTRY
AMINES
AROMATICS
CHARGE TRANSPORT
NAPHTHYL RADICALS
PHOTOCHEMISTRY
title Intramolecular photoassociation and photoinduced charge transfer in bridged diaryl compounds. 2. Charge transfer interactions in the lowest excited singlet state of dinaphthylamines
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