Synthesis and two-photon properties of multi-branched fluorophores composed of ladder-type conjugated cores and functionalized diquinoxalinylamino peripheries

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題名:	Synthesis and two-photon properties of multi-branched fluorophores composed of ladder-type conjugated cores and functionalized diquinoxalinylamino peripheries
作者:	林子超;Lin, Tzu-Chau;Li, Mei-Ling;Liu, Che-Yu;Tsai, Ming-Yu;Lee, Ying-Hsuan;Febriani, Yuyun;Lin, Ja-Hon;Shen, Yu-Kai
貢獻者:	理學院化學學系
關鍵詞:	Fluorescence;Fluorophores;Lasers;Photonics;Two-photon absorption
日期:	2014-03-01
上傳時間:	2026-04-21 14:25:09 (UTC+8)
出版者:	Wiley-VCH Verlag;Weinheim: WILEY-VCH Verlag
摘要:	摘要： Two multipolar fluorophores using ladder‐type oligo‐(p‐phenylene) units as the central π‐bridges and functionalized diquinoxalinylamino moieties as the peripheral groups have been synthesized and experimentally shown to manifest strong two‐photon absorption (2PA) and medium‐high up‐converted emission properties in the near‐IR (NIR) spectral region under the irradiation of femtosecond laser pulses. Tentative analysis of the structure–2PA property revealed that in the presented structural combination, diquinoxalinylamino units are useful 2PA‐enhancing subunits when properly incorporated. The π‐conjugation length of the central oligo‐(p‐phenylene) components was also found to be one of the key parameters that relates to the magnitude of the overall molecular 2PA properties in the studied molecular system, and this structural motif provides access to highly efficient two‐photon absorbers with large two‐photon action cross‐section values. A multi‐branched chromophore set, with ladder‐type oligo‐(p‐phenylenes) units as the central π‐bridges and functionalized diquinoxalinylamino moieties as the peripheries, has been synthesized and shown to exhibit strong two‐photon action cross‐section (ΦFδ) values and medium‐high up‐converted emission properties in the near‐IR (NIR) spectral region under the irradiation of femtosecond laser pulses. 其他題名： Eur. J. Org. Chem 出版者： Weinheim: WILEY-VCH Verlag 出版日期： 2014-03 出處： European journal of organic chemistry, 2014-03, Vol.2014 (8), p.1615-1621 資源來源： Wiley Online Library - AutoHoldings Journals 版權： Copyright © 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 版權： Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 識別號： ISSN: 1434-193X 識別號： EISSN: 1099-0690 識別號： DOI: 10.1002/ejoc.201301290
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