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Energy Transfer Cassettes (energy_transfer + cassette)

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Chemistry100%

Selected Abstracts

Through-Bond Energy Transfer Cassettes with Minimal Spectral Overlap between the Donor Emission and Acceptor Absorption: Coumarin,Rhodamine Dyads with Large Pseudo-Stokes Shifts and Emission Shifts,

ANGEWANDTE CHEMIE, Issue 2 2010
Weiying Lin Prof.
Eine neue Klasse von Cumarin-Rhodamin-Systemen, die auf dem Energietransfer über Bindungen (TBET) beruhen und minimale Überlappung zwischen Donoremission und Akzeptorabsorption aufweisen, zeichnet sich durch große Pseudo-Stokes-Verschiebungen (bis 230,nm) und Emissionsverschiebungen (bis 170,nm) aus. Die Nützlichkeit dieser TBET-Plattform für die Entwicklung von TBET-Sonden wurde mit einer neuen ratiometrischen pH-Fluoreszenzsonde demonstriert. [source]

Synthesis of Symmetrical Multichromophoric Bodipy Dyes and Their Facile Transformation into Energy Transfer Cassettes,

CHEMISTRY - A EUROPEAN JOURNAL, Issue 21 2010
Altan Bozdemir Dr.
Abstract Multichromophoric boron-dipyrromethene (Bodipy) dyes synthesized on phenylene-ethynylene platforms have been be converted to energy transfer cassettes in a one-step chemical transformation. Excitation energy transfer processes in these highly symmetrical derivatives were studied in detail, including time-resolved fluorescence spectroscopy techniques. Excitation spectra and the emission lifetimes suggest efficient energy transfer between the donor and acceptor chromophore. These novel energy transfer cassettes, while highlighting a short-cut approach to similar energy transfer systems, could be useful as large pseudo-Stokes shift multichromophoric dyes with potential applications in diverse applications. Fenilenetilen platformu üzerinde sentezlenen multikromoforik Bodipy boyarmaddeleri, tek basamakl, bir kimyasal transformasyonla enerji transferi kasetlerine dönü,türülmü,tür. Zaman ayr,ml, floresans spektroskopisi tekniklerinin de içinde bulundu,u yöntemlerle, yüksek simetri ö,eleri bulunduran bu türevlerdeki eksitasyon enerjisi transferi süreçleri ayr,nt,l, olarak çal,,,lm,,t,r. Eksitasyon spektrumlar, ve emisyon ömürlerindeki de,i,im, donör ve akseptör kromoforlar, aras,nda etkin bir enerji transferi oldu,unu dü,ündürmektedir. Bu yeni enerji transfer kasetleri, benzer enerji transfer sistemlerine kolay bir geçi, yolu göstermekle birlikte, pek çok farkl, alanda potansiyel uygulamalar, olabilecek, büyük pseudo-Stokes kaymas, de,erlerine sahip multikromoforik boyarmaddeler olarak da yararl, olabilirler. [source]