Boron Containing Two-Photon Absorbing Chromophores. 2. Fine Tuning of the One- and Two-Photon Photophysical Properties of Pyrazabole Based Fluorescent Bioprobes

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• 作者：Ali Hayek ; Frdric Bolze ; Cyril Bourgogne ; Patrice L. Baldeck ; Pascal Didier ; Youri Arntz ; Yves Mly ; Jean-Franois Nicoud
• 刊名：Inorganic Chemistry
• 出版年：2009
• 出版时间：October 5, 2009
• 年：2009
• 卷：48
• 期：19
• 页码：9112-9119
• 全文大小：884K
• 年卷期：v.48,no.19(October 5, 2009)
• ISSN：1520-510X

文摘

New boron containing two-photon absorbing fluorophores have been prepared. Centered on a pyrazabole central core, various conjugated systems and end groups were investigated to modulate their physicochemical properties (alkoxy, diphenylamino, and boron dipyromethene groups). One and two-photon photophysical characterizations were performed, showing efficient fluorescence in organic solvents. High two-photon absorption cross sections were determined in the 500−800 nm range. Two-photon excited microscopy images were also obtained with these new boron containing fluorescent bioprobes with laser intensities in the milliwatt range.