CAJ | 학술논문

本文报道了一种新型中位-吡啶取代的硼-二吡咯亚甲基(BDP)染料的合成与晶体结构表征,发现中位-吡啶环与因达省平面几乎正交,其二面角为88.2°.同时对它的吸收和稳态荧光性质研究表明:当溶液的酸性增强时,化合物的荧光减弱,pKa为2.24.该化合物在可见光激发下,可以作为比较灵敏的pH荧光探针.
본문보도료일충신형중위-필정취대적붕-이필각아갑기(BDP)염료적합성여정체결구표정,발현중위-필정배여인체성평면궤호정교,기이면각위88.2°.동시대타적흡수화은태형광성질연구표명:당용액적산성증강시,화합물적형광감약,pKa위2.24.해화합물재가견광격발하,가이작위비교령민적pH형광탐침.
A new bomn-dipyrromethene (BDP) dye with pyridine subunit at meso-position has been synthesized and structurally characterized by X-ray diffraction crystal structure analysis.The meso-pyridine ring is nearly perpendicular to the indacene plane with torsion angle being 88.2°.Its absorption and steady-state fluorescence properties are investigated.The compound shows strong fluorescent quenching upon increasing the solution acidity.The pK, value calculated from the pH dependent fluorescence emission spectra is 2.24.It can be used as a pH probe excited with visible light.CCDC: 297327.