Formation of [3]Pseudorotaxanes from β-cyclodextrin and a Series of Dicarboxylic Acids with Their Corresponding α,ω-alkanedicarboxylate Anions  

作　　者：Jian-gang Gao Yu-jie Ding Hong-wei Chen Qing-ping Song Qi-jin Zhang 

机构地区：[1]Department of Biochemistry and Engineering, Anhui University of Technology and Science, Wuhu 241000, China [2]Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China

出　　处：《Chinese Journal of Chemical Physics》2008年第4期387-392,共6页化学物理学报（英文）

摘　　要：Inclusion complexes between β-cyclodextrin （β-CD） and a series of dicarboxylic acids （DAn, n=11-15） were prepared by co-grinding and co-precipitation methods and the [3]pseudorotaxane structure of them was elucidated by FTIR, DTA and XRD characterizations. Inclusion complexes of β-CD and α,ω-alkanedicarboxylate anions （DAn^2-） were acquired by neutralizing β-CD/DAn different inclusion complexes with sodium hydroxide and the structure was also proved to be a pseudorotaxane structure by ^1H-NMR spectra and NOESY spectrum. Both the inclusion complexes of β-CD/DAn and β-CD/DAn^2- adopt the [3]pseudorotaxane structure with β-CD arranged in dimers threaded onto one aliphatic chain and the binding mode of 1：1 inclusion complex was excluded based on the consideration of chain conformations.

关 键 词：Β-CYCLODEXTRIN Inclusion complex Dicarboxylic acid α ω-alkanedicarboxylate anion 

分 类 号：O636.12[理学—高分子化学] TS202.3[理学—化学]