A mixed ligand route for the construction of tetrahedrally coordinated porous lithium frameworksElectronic supplementary information (ESI) available: Experiment details, 1H NMR spectroscopy of synthesized ligands, powder XRD, TGA analysis and CIF files. CCDC reference numbers 794129and 794130. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c1dt10859j

Reported here are two 4-connected 3D frameworks based on monomeric lithium nodes, which are synthesized through a mixed ligand route. By combining a negatively charged imidazole ligand and a neutral bis(imidazolyl)methane ligand (or one of its derivatives), neutral frameworks adopting chiral quartz-dual and diamond topologies have been obtained. These materials have low framework density and can reversibly adsorb hydrogen gas. [ABSTRACT FROM AUTHOR]