Synthesis and fluorescence properties of benzoxazole-1,4-dihydropyridine dyads achieved by a multicomponent reaction
作者:Ricardo Ferreira Affeldt、Antônio César de Amorim Borges、Dennis Russowsky、Fabiano Severo Rodembusch
DOI:10.1039/c4nj00777h
日期:——
Photoactive ESIPT dyads with a high Stokes' shift were obtained by a multicomponent one-pot Hantzsch synthesis.
具有高Stokes位移的光活性ESIPT双子通过多组分一锅Hantzsch合成获得。
Proton-Transfer-Based Azides with Fluorescence Off–On Response for Detection of Hydrogen Sulfide: An Experimental, Theoretical, and Bioimaging Study
作者:Cláudia Brito da Silva、Eduarda Sangiogo Gil、Fabiano da Silveira Santos、Ana Moira Morás、Luiza Steffens、Paulo Fernando Bruno Gonçalves、Dinara Jaqueline Moura、Diogo Seibert Lüdtke、Fabiano Severo Rodembusch
DOI:10.1021/acs.joc.8b02489
日期:2018.12.21
This work describes the synthesis of photoactive proton transfer compounds based on the benzazolic core containing the azide group. The compounds present absorption in the UV region and fluorescence emission in the visible region of the spectra with large Stokes shift due to a phototautomerism in the excitedstate (ESIPT). The azide location on the benzazolic structure presented a noteworthy role on
Five silyl-functionalized benzazole dyes, fluorescent by excited state intramolecular proton transfer (ESIPT) mechanism, were synthesized by reaction of amino benzazole derivatives with 3-(triethoxysilyl)propyl isocyanate. Fluorescent silica gels were prepared and monolithic aerogels (d
≈ 0.18 g cm−3) were obtained via supercritical CO2 drying of the fluorescent gel. The photophysical behaviour of the dyes and fluorescent silica aerogels was investigated by UV–vis and steady-state fluorescence spectroscopy.
合成了五种硅功能化苯并唑染料,这些染料通过激发态分子内质子转移(ESIPT)机制发光。通过氨基苯并唑衍生物与3-(三乙氧基硅烷)丙基异氰酸酯反应制得。制备了荧光二氧化硅凝胶,并通过超临界CO2干燥法获得了单体气凝胶(密度约为0.18 g cm−3)。使用紫外-可见光和稳态荧光光谱学研究了染料和荧光二氧化硅气凝胶的光物理行为。
申请人:POSTECH Research and Business Development Foundation 포항공과대학교 산학협력단(220040433361) BRN ▼506-82-07303
公开号:KR101511020B1
公开(公告)日:2015-04-14
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