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Electrogenerated ch...
Electrogenerated chemiluminescence of a series of donor - Acceptor molecules and X-ray crystallographic evidence for the reaction mechanisms
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Jiang, Xiao (författare)
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Yang, Xichuan (författare)
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Zhao, Changzhi (författare)
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Jin, Kun (författare)
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- Sun, Licheng (författare)
- KTH,Organisk kemi
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(creator_code:org_t)
- 2007-06-05
- 2007
- Engelska.
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Ingår i: The Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 111:26, s. 9595-9602
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Three series of donor-acceptor pi-conjugated (D-pi-A) molecules 1-3 have been synthesized with a 2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolinyl (Julolidine group), N,N-dimethylamino, or N,N-diphenylamino group as the donor moiety, a phenylvinyl or thienylvinyl unit as the bridge, and a bromide or aldehyde group as the acceptor moiety. The photophysical, electrochemical, and electrogenerated chemiluminescence (ECL) characters of these compounds have been studied in a 1:1 PhH/MeCN solution. Three different categories of ECL mechanisms for each of the three families of compounds are discussed, respectively. Compounds 1a-c produce typical and simple monomer ECL emission resulting from the annihilation of their radical cations and radical anions. The ECL emission of compounds 2a-c can be ascribed as an excimer emission. Compounds 3a-c exhibit an aggregate ECL emission. X-ray crystal structures of compounds 1b, 2a, and 3a provide further proof for the above-mentioned reaction mechanisms. All these compounds show stable ECL emission via the singlet excited state without the addition of any co-reactant or additional compound.
Nyckelord
- intramolecular charge-transfer
- electrochemiluminescence detection
- photophysical properties
- excimer emission
- amino-acids
- system
- ecl
- electrochemistry
- ruthenium
- amplification
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- art (ämneskategori)
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