Electronically regulated thermally and light-gated electron transfer from anions to naphthalenediimides.
J Am Chem Soc
; 133(39): 15256-9, 2011 Oct 05.
Article
em En
| MEDLINE
| ID: mdl-21877729
ABSTRACT
Anion-induced electron transfer (ET) to π-electron-deficient naphthalenediimides (NDIs) can be channeled through two distinct pathways by adjusting the Lewis basicity of the anion and the π-acidity of the NDI (1) When the anion and NDI are a strong electron donor and acceptor, respectively, positioning the HOMO of the anion above the LUMO of the NDI, a thermal anion â NDI ET pathway is turned ON. (2) When the HOMO of a weakly Lewis basic anion falls below the LUMO of an NDI but still lies above its HOMO, the thermal ET is turned OFF, but light can activate an unprecedented anion â (1)*NDI photoinduced ET pathway from the anion's HOMO to the photogenerated (1)*NDI's SOMO-1. Both pathways generate NDI(â¢-) radical anions.
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Base de dados:
MEDLINE
Assunto principal:
Temperatura
/
Elétrons
/
Imidas
/
Luz
/
Naftalenos
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article