Scaffold-like 3D networks fabricated via the organogelation of β-diketone-boron for fluorescent sensing organic amine vapors  

作　　者：QIAN Chong CAO KaiYu LIU XingLiang ZHANG XiaoFei XU DeFang XUE PengChong LU Ran 

机构地区：[1]State Key Laboratory of Supramolecular Structure and Materials College of Chemistry,Jilin University,Changchun 130012,China

出　　处：《Chinese Science Bulletin》2012年第33期4264-4271,共8页

基　　金：supported by the National Natural Science Foundation of China (51073068);the National Basic Research Program of China(2009CB939701);NSFC-JSPS Scientific Cooperation Program(21011140069);the Open Project of State Key Laboratory of Supramolecular Structure and Materials (SKLSSM201203)

摘　　要：A new compoud based on carbazole functionalized β-diketone-boron difluoride(1) was synthesized.It is found that compoud 1 can gel toluene,ethylbenzene and some mixed solvents,and 3D networks consisting lots of nanofibers were observed using SEM and fluorescence microscopy.The molecular packing model in xerogel 1 was proposed according to the results of XRD,UV/Vis absorption and semiempirical calculations.The obtained nanofibers prepared through organogelation can emit strong orange light under irradiation.It is interesting that the fluorescence of the nanofiber-based film can be quenched quickly and significantly upon exposed to the vapors of n-butylamine,dibutylamine,triethylamine,triethylamine,cyclohexylamine,aniline and pyridine instead of other common reagents.Notably,the response time of the nanofiber-based film to aniline vapor reached ca.0.59 s,and the detection limit for aniline was as low as ca.0.83 mL/m 3.A new compoud based on carbazole functionalized β-diketone-boron difluoride （1） was synthesized. It is found that compoud 1 can gel toluene, ethylbenzene and some mixed solvents, and 3D networks consisting lots of nanofibers were observed using SEM and fluorescence microscopy. The molecular packing model in xerogel 1 was proposed according to the results of XRD, UV/Vis absorption and semiempirical calculations. The obtained nanofibers prepared through organogelation can emit strong orange light under irradiation. It is interesting that the fluorescence of the nanofiber-based film can be quenched quickly and significantly upon exposed to the vapors of n-butylamine, dibutylamine, triethylamine, triethylamine, cyclohexylamine, aniline and pyridine instead of other common reagents. Notably, the response time of the nanofiber-based film to aniline vapor reached ca. 0.59 s, and the detection limit for aniline was as low as ca. 0.83 mL/m3.

关 键 词：二氟化硼 网络制造 二酮 蒸汽 脚手架 有机胺 光传感 纳米纤维 

分 类 号：O621.25[理学—有机化学]