Two new cucurbit[6]uril-based metal−organic rotaxane networks (MORNs), [Zn 2 (PR44)(BDC) 2 Cl 2 ]•2DMF and [Zn 2 (PR44)(BDC) 2 (FA) 2 ]•2DMF (CUST-703 and CUST-704), have been synthesized via a simple anion modulation strategy under solvothermal conditions. Single-crystal X-ray diffraction shows that the chlorine anions and formate anions are coordinate with the mononuclear metal zinc cations in CUST-703 and CUST-704, respectively. CUST-703 exhibits a one-dimensional (1D) chain structure, while CUST-704 has a twodimensional (2D) layered structure. They can be expanded into three-dimensional (3D) supramolecular frameworks through extensive hydrogen bonding and C−H•••π interactions. In addition, their proton conduction properties were also investigated in detail. Interestingly, compared with CUST-703, CUST-704 exhibits a one order of magnitude enhancement in proton conductivity, and its proton conductivity can reach 0.59 × 10 −3 S cm −1 at 85 °C and 97% relative humidity (RH), which suggests that the formate anions can effectively promote proton transfer.

Three new cucurbit[6]uril (CB[6])-based metal-organic rotaxane networks (MORNs) (named as CUST-711, CUST-712, CUST-713) functionalized by sulfonic group (-SO3H) have been designed and synthesized via hydrothermal method. All three compounds exhibited...

Two new transition metal-organic frameworks (MOFs) formulated as [Zn3(Bip)3(H2sip)2(H2O)4]·5H2O (CUST-751) and [Cd3(Bip)2(H2sip)2(H2O)4]·2H2O (CUST-752) [CUST=Changchun University of Science and Technology, Bip=3, 5-bis(imidazole-1-yl)pyridine and H2sip=5-sulfoisophthalic acid monosodium salt] have been constructed via...