84119-15-3Relevant academic research and scientific papers
Zinc-1,4-benzenedicarboxylate-bipyridine frameworks - Linker functionalization impacts network topology during solvothermal synthesis
Henke, Sebastian,Schneemann, Andreas,Kapoor, Shobhna,Winter, Roland,Fischer, Roland A.
, p. 909 - 918 (2012/03/27)
Substitution of 1,4-benzenedicarboxylate (bdc) with additional alkoxy chains is the key to construct a family of metal-organic frameworks (MOFs) of the type [Zn2(fu-bdc)2(bipy)]n (fu-bdc = functionalized bdc; bipy = 4,4′-bipyridine) exhibiting a honeycomb-like topology instead of the default pillared square-grid topology. Both the substitution pattern of the phenyl ring of the fu-bdc linker and the chain length of the alkoxy substituents have a major impact on the structure of the derived frameworks. Substitution at positions 2 and 3 leads to the trivial pillared square-grid framework, and substitution at positions 2 and 5 or 2 and 6 yields MOFs with the honeycomb-like topology. Also, simple methoxy substituents lead to the construction of a pillared square-grid topology, whereas longer substituents like ethoxy, n-propoxy, and n-butoxy generate honeycomb-like framework structures. These honeycomb MOFs feature one-dimensional channels, which are tuneable in diameter and functionality by the choice of substituent attached to the bdc-type linker. Pure component sorption isotherms indicate that the honeycomb-like frameworks selectively adsorb CO2 over N 2 and CH4. The Royal Society of Chemistry 2011.
An Experimental Measure of Cavity Size in Macrocyclic Cyclophane-Based Host Molecules
Whitlock, Barbara J.,Whitlock, Howard W.
, p. 838 - 844 (2007/10/02)
The synthesis of rigid (3a-f) and flexible (4a-f) cyclophanes is described.They exhibit DNMR effects in their proton NMR spectra associated with conformational changes as in eq. 1.The rates of these processes were studied as a function of the size of the
