Supramolecular metallogels with complex of phosphonate substituted carbazole derivative and aluminum(III) ion as gelator.
Supramolecular metallogels can be gained from the phosphonate substituted 4,4'-bis(N-carbazolyl)biphenyl (PCBP) in the presence of aluminum chloride in alcohols, which can donate oxygen to aid proton transfer in the aluminum organophosphorus complexes. Inside the metallogels, three-dimensional fiber networks with nanofibers entangling and intersecting with each other inside are formed. The nanofibers show layered structures with a period thickness of 0.82 nm. As the content of aluminum(III) increases, the size of the fibers becomes smaller and the fibers pack more densely. It makes the transparent gel become turbid but nevertheless improves the stability of the metallogels. NMR, FT-IR and fluorescence spectroscopy show that the coordination interactions between the phosphonate groups of PCBP molecules and aluminum(III) ions as well as the π-π interactions among PCBP molecules are involved during the gel formation process.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
Zicheng
Z
Ding
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
Bo
B
Chen
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
Junqiao
J
Ding
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
Lixiang
L
Wang
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China. Electronic address: ychan@ciac.ac.cn.
Yanchun
Y
Han
D000535:Aluminum / Q000737:chemistry*; D002227:Carbazoles / Q000737:chemistry*; D005782:Gels / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D010757:Phosphorous Acids / Q000737:chemistry*
D002227:Carbazoles; D005782:Gels; D010757:Phosphorous Acids; C570063:phosphonic acid; D000535:Aluminum
Carbazole derivative; Coordination interactions; Metallogel; Phosphonate; π–π interactions