Ultrastable Anion Catechol Frameworks(ACFs)of Pentiptycene-based Quad(catechol)Through Decavalent Hydrogen Bond

摘要

Anion coordination are silimar with metal coordination to direct the formation of ordered structures from samll building blocks through hydrogen bonds.However,the diversity and stablity of the reported anion coordinaion frameworks(ACFs)are limited.Herein,we designed and synthesized a new shapepersistent catechol ligand,azazcene-bridged pentiptycene with four catechol moieties,compound 1.The compound 1 with four catechol moieties as hydrogen bond donors and four nitrogen atoms as hydrogen bond acceptors will form more hydrogen bonds with anion ions or compound 1 itself to boost the development of anion catechol frameworks(ACFs).The obtained crystalline ACF possesses staggered hexagonal pores through decavalent hydrogen bond and exhibits excellent thermal and water stability in harsh conditions.