一种具有溶剂变色和机械变色光致发光性能的多重刺激响应性Ag/P/S复合物
A Multiple Stimuli-Responsive Ag/P/S Complex Showing Solvochromic and Mechanochromic Photoluminescence.
作者信息
Yan Jia-Jun, Wu Yu, Zhai Weijia, Yang Ningwen, Li Hong-Xi, Yang Wei, Lu Chengrong, Young David James, Ren Zhi-Gang
机构信息
Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
Faculty of Food Science and Technology, Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, China.
出版信息
Molecules. 2023 Jul 19;28(14):5513. doi: 10.3390/molecules28145513.
The reaction of CFCOOAg, 3-bdppmapy (,-bis(diphenylphosphanylmethyl)-3-aminopyridine) and HTZ (1,2,4-triazole-3-thiol) in CHCl/MeOH resulted in a dinuclear Ag/P/S complex [Ag(TZ)(3-bdppmapy)]·Sol (·Sol). Crystals of ·Sol converted to ·2MeOH in air at room temperature and further to under vacuum upon heating. The solid-state, room-temperature photoluminescent emission of ·Sol (510 nm) shifted to 494 nm (·2MeOH) and 486 nm (). Grinding solids of ·2MeOH in air resulted in amorphous characterized by solid-state emission at 468 nm, which converted to with 513 nm emission upon MeOH treatment. Grinding in air returned and this interconversion was reproducible over five cycles. The solid-state photoluminescence of changed in response to vapors containing low-molecular weight alcohols but remained unchanged after exposure to other volatile organic compounds (VOCs) or to water vapor. Test papers impregnated with could detect methanol in vapors from aqueous solutions at concentrations above 50%. Complex is, therefore, an example of a stimuli-responsive molecular sensor for the detection of alcohols.
CFCOOAg、3-bdppmapy（α,α-双（二苯基膦基甲基）-3-氨基吡啶）和HTZ（1,2,4-三唑-3-硫醇）在CHCl₃/MeOH中的反应生成了双核Ag/P/S配合物[Ag(TZ)(3-bdppmapy)]·Sol（·Sol）。·Sol的晶体在室温下于空气中转化为·2MeOH，加热后在真空中进一步转化为 。·Sol在固态室温下的光致发光发射峰（510 nm）在转化为·2MeOH时移至494 nm，转化为 时移至486 nm。在空气中研磨·2MeOH的固体得到无定形的 ，其固态发射峰在468 nm，用MeOH处理后转化为发射峰为513 nm的 。在空气中研磨 又变回 ，这种相互转化在五个循环中均可重复。 的固态光致发光会因含有低分子量醇类的蒸汽而发生变化，但在暴露于其他挥发性有机化合物（VOCs）或水蒸气后保持不变。浸渍有 的试纸能够检测水溶液蒸汽中浓度高于50%的甲醇。因此，配合物 是一种用于检测醇类的刺激响应型分子传感器的实例。
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