Multiple reduction of 2,5-bis(borolyl)thiophene: isolation of a negative bipolaron by comproportionation.
Angew Chem Int Ed Engl
; 52(49): 12852-5, 2013 Dec 02.
Article
em En
| MEDLINE
| ID: mdl-24123828
ABSTRACT
The 2,5-bis(borolyl)thiophene 2, a conjugated acceptor-π-acceptor system, can be reduced to the monoradical anion [2](.-) , the dianion [2](2-) , and the tetraanion [2](4-) . The dianion [2](2-) was also prepared by a comproportionation reaction and features an absorption maximum in the near-IR region (λmax =800â
nm), which is characteristic of a bipolaron with a quinoidal structure.
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1
Base de dados:
MEDLINE
Assunto principal:
Tiofenos
/
Compostos de Boro
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2013
Tipo de documento:
Article