Metal-Assembled, Resorcinarene-Based Molecular Trimer for Efficient Removal of Toxic Dichromate Pollutants and Knoevenagel Condensation Reaction
journal contributionposted on 16.04.2019, 13:34 by Xue Han, Ya-Xin Xu, Jin Yang, Xianxiu Xu, Cheng-Peng Li, Jian-Fang Ma
Self-assembly of resorcinarene-based coordination cages involving more than two resorcinarenes poses significant challenges for the requirements of suitable functionalized resorcinarene ligands and metals. Here, we report an unusual example of a metal-coordinated, resorcinarene-based molecular trimer (1-NO3), composed of three resorcinarenes and three Cd(II) cations. In particular, 1-NO3 features efficient and selective removal of environmentally toxic dichromate (Cr2O72–) anions. Moreover, the Knoevenagel condensation reaction was also explored by using 1-NO3 as an efficient heterogeneous catalyst.