Fluorescence Sensing of Anions by Silanediols Bearing Substituted Naphthyl Groups
Fluorescence Sensing of Anions by Silanediols Bearing Substituted Naphthyl Groups
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带有取代萘基的硅烷二醇对阴离子的荧光传感
DOI：
10.1002/cplu.202300006
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发表时间：
2023
期刊：
影响因子：
3.4
通讯作者：
Kondo Shin‐ichi
中科院分区：
文献类型：
--
作者：
Abe Shiori;Kondo Shin‐ichi
合成并表征了5-位分别被吸电子氰基和给电子N，N-二甲氨基取代的萘基硅烷二醇。萘基上的取代基对阴离子的反应活性、物理化学性质和传感能力有很大影响。含1-（5-N，N-二甲氨基萘）基团的硅烷二醇在有机溶剂中表现出基于分子内电荷转移的大的Stokes位移和大的量子产率。该化合物对生物活性阴离子AcO-和H2PO4-具有良好的荧光响应，缔合常数分别为4.08 × 104和8.76 × 103mol-1dm 3。
Silanediols bearing naphthyl moieties substituted at 5‐position with an electron‐withdrawing cyano group and an electron‐donatingN,N‐dimethylamino group, respectively, have been prepared and characterized. The substituents on the naphthyl moieties strongly influence the reactivity, photophysical properties, and sensing abilities for anions. The silanediol bearing 1‐(5‐N,N‐dimethylaminonaphthyl) groups exhibited large Stokes shifts based on intramolecular charge transfer and large quantum yields in organic solvents. The silanediol showed favorable ratiometric fluorescence responses of upon the addition of biologically important anions, AcO−and H2PO4−with the association constants of 4.08×104and 8.76×103mol−1dm3, respectively.