Crystallographic, Photophysical, NMR Spectroscopic and Reactivity Manifestations of the “8-Heteroaryl Effect” in 4,4-Difluoro-8-(C<sub>4</sub>H<sub>3</sub><i>X</i>)-4-bora-3<i>a</i>,4<i>a</i>-diaza-<i>s</i>-indacene (<i>X</i> = O, S, Se) (BODIPY) Systems
作者:Kibong Kim、Changbum Jo、Shanmugam Easwaramoorthi、Jooyoung Sung、Dong Ho Kim、David G. Churchill
DOI:10.1021/ic902467h
日期:2010.6.7
4-difluoro-8-(C4H3X)-4-bora-3a,4a-diaza-s-indacene (X = O, 2-/3-furyl (7/10); Se, 2-selenenyl (9)) through the use of 2-D NMR (COSY, HSQC, and HMBC), single crystal X-ray diffraction, mass spectrometry, elemental analysis, UV−vis spectroscopy, and fluorescent decay lifetimes, for comparison to the previously reported thienyl species (X = S, 2-/3-thienyl (8/11)). Specifically, 7−11 differ formally by chalcogen
我们已合成和完全表征三种新型,但密切相关的,heterocyclically内消旋取代的(BODIPY)荧光团4,4-二氟-8-(C 4 H ^ 3 X)-4-硼杂3一个,4一-diaza-小号-indindene(X = O,2- / 3-furyl(7/10); Se,2-selenenyl(9))通过使用2-D NMR(COSY,HSQC和HMBC),单晶X射线衍射,质谱,元素分析,紫外-可见光谱和荧光衰减寿命,用于与以前报道的噻吩基种类进行比较(X = S,2- / 3-噻吩基(8/11))。具体而言,7 -11在形式上因硫属元素(O,S或Se)或硫属元素的位置而异。固态比较显示出细微的结构差异所产生的主要影响,这有助于深入了解荧光晶体工程。对于2 -杂原子取代,增加分子量(7 < 8 < 9具有增加晶胞体积)相关,对于C更大的正交4 ħ 3 X基团,并且为Φ一个较低的值˚F。溶液