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Using a carboxylic acid linker, this work achieved the epitaxially coordinated assembly of a Ag–S layer into a three-dimensional semi-conductive framework, with high thermal stability, as well as an interesting temperature-dependent luminescence response. This work provides a new avenue to prepare semi-conductive metal-chalcogenide layer-based materials in electricity-related applications. [ABSTRACT FROM AUTHOR]

A new highly porous mixed-valence metal–organic framework, Co-pydc, was synthesized and characterized. Upon guest loss, Co-pydc irreversibly transformed to a closed structure and lost pore functionality. Then an auxiliary ligand was introduced as a girder to support the framework in the synthesis process, and successfully afforded a new porous MOF, Co-pydc–TPB. This displays a considerably enhanced robust framework which is resistant to guest loss and stable up to 400 °C, retains single-crystallinity at 300 °C, shows good water and alkali resistance, and selective adsorption of CO2 over N2 at room temperature. [ABSTRACT FROM AUTHOR]