Introduction of various substitutions to the methine bridge of heptamethine cyanine dyes Via substituted dianil linkers
| Autor: | Fahad Marmarchi, Andrew Levitz, Maged Henary |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
Quantum yield Buffer solution Molar absorptivity 010402 general chemistry Ring (chemistry) 01 natural sciences Fluorescence Article 0104 chemical sciences chemistry.chemical_compound chemistry Polymer chemistry Cyclopentene Cycloheptene Physical and Theoretical Chemistry Cyanine |
| Zdroj: | Photochemicalphotobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology. 17(10) |
| ISSN: | 1474-9092 |
| Popis: | The unique optical properties of cyanine dyes have prompted their use in numerous applications. Heptamethine cyanines are commonly modified on the methine bridge after synthesis of a meso-chlorine containing cyanine. Herein, a series of heptamethine cyanines containing modified methine bridges were synthesized using substituted dianil linkers. Their optical properties including, molar absorptivity, fluorescence, and quantum yield were measured as well as their hydrophobic effects in polar buffer solution. It was shown that dyes containing cyclopentene in the methine bridge or a phenyl ring in the meso position display increased molar absorptivity while the increased flexibility of the dye containing a cycloheptene in the methine bridge prevented fluorescence. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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