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Sensor fluorométrico baseado no Tiacalix[4]areno

Sensor fluorométrico baseado no Tiacalix[4]areno

Pinkeshkumar Sutariya / Savan Darjee

53,79 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química
ISBN:
9786208657178
53,79 €
IVA incluido
Disponible

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Sobre IBD

Foi sintetizado e caracterizado um novo quimiossensor fluorescente à base de tiacalix[4]areno, o tiacalix[4]areno-N-(quinolin-8-il)acetamida (TCAN8QA), através de técnicas espectroscópicas de 1H-NMR, FT-IR, ESI-MS e 13C-NMR. Verificou-se que o TCAN8QA apresenta um comportamento altamente seletivo para iões F- entre todos os outros aniões, por exemplo, Cl-, Br-, I-, PO4-3, OH-, H2PO4- e CH3COO- nos espectros de absorção, bem como nos espectros de emissão. O desvio para o vermelho e a atenuação nos espectros de emissão, que constituem a assinatura da deteção de fluoreto, devem-se à transferência de carga fotoinduzida (PCT), que pode ser atribuída à desprotonação do protão ácido -NH na presença de iões fluoreto. A observação é também confirmada pela análise espetral ESI-MS, NMR e FTIR.

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Otros libros del autor

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