Computer Modeling and Simulations on Flexible Bifunctional Systems: Intramolecular Energy Transfer Implications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F03%3A00008683" target="_blank" >RIV/00216224:14310/03:00008683 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Computer Modeling and Simulations on Flexible Bifunctional Systems: Intramolecular Energy Transfer Implications

Popis výsledku v původním jazyce

The conformational search of the potential energy surface using the single coordinate driving method CICADA, molecular dynamics calculations, and quantum mechanical studies using the 6-31G* basis set were used for a detailed analysis of the conformational behavior of various flexible bichromophoric compounds Ph-CO-(CH2)x-O-Ar (x = 3-14; Ar = 2-naphthyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl). The results were used for the estimation of the end-to-end intramolecular (exchange) energy transfer efficiency and for comparison to the data recently obtained from the steady-state quenching and quantum yield measurements (Wagner, P. J.; Klan, P. J. Am. Chem. Soc. 1999, 121, 9626-9635). The conformational search clearly supported the dominance of the through-space interaction in longer molecules (x = 5-14), which was still remarkably high even for x = 14. Comparing both computational and experimental results, a ~90% through-bond coupling was estimated for the shortest (x = 3) bichromophores.

Název v anglickém jazyce

Computer Modeling and Simulations on Flexible Bifunctional Systems: Intramolecular Energy Transfer Implications

Popis výsledku anglicky

The conformational search of the potential energy surface using the single coordinate driving method CICADA, molecular dynamics calculations, and quantum mechanical studies using the 6-31G* basis set were used for a detailed analysis of the conformational behavior of various flexible bichromophoric compounds Ph-CO-(CH2)x-O-Ar (x = 3-14; Ar = 2-naphthyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl). The results were used for the estimation of the end-to-end intramolecular (exchange) energy transfer efficiency and for comparison to the data recently obtained from the steady-state quenching and quantum yield measurements (Wagner, P. J.; Klan, P. J. Am. Chem. Soc. 1999, 121, 9626-9635). The conformational search clearly supported the dominance of the through-space interaction in longer molecules (x = 5-14), which was still remarkably high even for x = 14. Comparing both computational and experimental results, a ~90% through-bond coupling was estimated for the shortest (x = 3) bichromophores.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry A

ISSN

1089-5639

e-ISSN

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Svazek periodika

107

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

3404

Kód UT WoS článku

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EID výsledku v databázi Scopus

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