Shortwave Infrared Absorptive and Emissive Pentamethine-Bridged Indolizine Cyanine Dyes.
J Org Chem
; 86(21): 15376-15386, 2021 11 05.
Article
em En
| MEDLINE
| ID: mdl-34647452
ABSTRACT
Shortwave infrared (SWIR)-emitting small molecules are desirable for biological imaging applications. In this study, four novel pentamethine indolizine cyanine dyes were synthesized with N,N-dimethylaniline-based substituents on the indolizine periphery at varied substitution sites. The dyes are studied via computational chemistry and optical spectroscopy both in solution and when encapsulated. Dramatic spectral shifts in the absorption and emission spectrum wavelengths with added donor groups are observed. Significant absorption and emission with an emissive quantum yield as high as 3.6% in the SWIR region is possible through the addition of multiple donor groups per indolizine.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Quinolinas
/
Indolizinas
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article