کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
175944 458928 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dicyanoboron diketonate dyes: Synthesis, photophysical properties and bioimaging
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Dicyanoboron diketonate dyes: Synthesis, photophysical properties and bioimaging
چکیده انگلیسی


• Dicyanoboron diketonates were synthesized and their optical properties were studied.
• The emission of the dyes was extended to the deep red region.
• The dyes exhibited high molar absorption coefficients and high photostability.

A new class of dicyanoboron diketonates (B(CN)2) was synthesized and the photophysical properties were investigated. The B(CN)2 complexes exhibited high molar absorption coefficients, large Stokes shifts, high photostability and low cytotoxicity. Especially, the emission of the B(CN)2 extended into the deep red region. The extensive π conjugation and the presence of intramolecular charge transfer (ICT) transitions are responsible for their red-shifted emission. Their fluorescence are very sensitive to the polarity of the solvents. They are highly emissive in low polarity solvents, but weakly fluorescent in polar solvents. Cell imaging experiments demonstrated its potential application as a probe in bioorganisms due to its excellent imaging contrast. This strategy represents a facile approach to modulate the photophysical properties of dyes.

We report a new class of dicyanoboron diketonates complexes which exhibit high molar absorption coefficients, large Stokes shifts, high photostability and low cytotoxicity.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 112, January 2015, Pages 162–169
نویسندگان
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