Toward Covalently Linked Organic Networks: Model Studies and Connector Syntheses
摘要:
A model 1-naphthoic acid bearing a peri-positioned cinnamic acid residue crystallizes as a closed H-bonded dimer. Irradiation of this crystalline solid provides an alpha-truxillate-type cyclobutane photodimer in quantitative yield, Further synthesis studies have led to more highly functionalized naphthoic/cinnamic acid species capable of(pseudo)centrosymmetric attachment to polyvalent hubs, This system demonstrates the feasibility of designing a covalent molecular connector whose orientation is encoded by its H-bonding pattern.