首页|Selective synthesis and physical properties of a bismacrocycle:Cycloparaphenylene-pillar[5]arene
Selective synthesis and physical properties of a bismacrocycle:Cycloparaphenylene-pillar[5]arene
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Macrocyclic materials have attracted much attention due to their particular chemical and physical proper-ties.Herein we report the precise synthesis and characterization of a new bismacrocycle structure base on cycloparaphenylene(CPP)and pillar[5]arene,named cycloparaphenylene-pillar[5]arenes(CPPn[5]).The bismacrocycle was fully characterized by NMR and HR-MS.The photophysical properties of CPPn[5]were investigated by UV-vis,and the maximum absorption peak was located at 331 nm,which was consis-tent with density functional theory(DFT)calculations.The fluorescence spectrum was further studied and the emission peak was maximized at 458 nm.The computational results indicate the strain energy of CPPn[5]is 27.80 kcal/mol and the HOMO-LUMO gap is 3.39 eV Notably,CPPn[5]showed interesting supramolecular properties.
Key Laboratory of Precision and Intelligent Chemistry,Hefei National Laboratory for Physical Sciences at the Microscale,CAS Key Laboratory of Materials for Energy Conversion,Department of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China
College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310032,China
国家自然科学基金国家自然科学基金国家自然科学基金Hefei National Research Center for Physical Sciences at the Microscale
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