期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 -, 期 -, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.2c05921
关键词
-
资金
- National Natural Science Foundation of China
- Natural Science Foundation of Anhui Province
- [21371004]
- [1808085MB43]
- [2008085MB36]
In this study, the formation of inclusion complexes between cyclodextrins and pyridinium chloride was demonstrated, showing photochromic properties suitable for erasable inkless printing and anticounterfeiting. The color of printing on filter paper can be tuned by controlling the mass proportions of different inclusion complexes.
The formation of 1:1 and 2:1 inclusion complexes between the hosts cyclodextrins (alpha-, beta-, and gamma-CD) and the guest 1-(4carboxybenzyl)-4-[2-(4-pyridyl)vinyl]pyridinium chloride (guest CPP+center dot Cl-) was demonstrated by NMR spectroscopy. The inclusion complexes CPP+@alpha-CD, CPP+@beta-CD and CPP+@gamma-CD2 display photochromic properties from pale yellow to red in the solid state. The electron-spin resonance (ESR) spectroscopic data of the CPP+@gamma-CD2 suggest that the photochromic behavior arises from the generation of the free radicals. The CPP+@gamma-CD2 can be easily coated on the filter paper and used in erasable inkless printing and anticounterfeiting. Most importantly, the mixture of CPP+@gamma-CD2 and 1+@beta-CD (an inclusion complex previously reported, whose color after irradiation was blue) also can be coated on the filter paper, and the color of printing on the filter paper is tunable by controlling the mass proportions of CPP+@gamma-CD2 and 1+@beta-CD.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据