Two new zinc(II) metal-organic frameworks based on 1,4-bis(2-methyl-imidazol-1-yl)butane: synthesis, structures, and properties

Abstract

Two new zinc(II) metal-organic compounds, {[Zn(ADC)(bib)]·CH3OH·H2O}n (1) and [Zn(ADA)(bib)]n (2) (H2ADC = 1,3-adamantanedicarboxylic acid, H2ADA = 1,3-adamantanediacetic acid, bib = 1,4-bis(2-methyl-imidazol-1-yl)butane), have been synthesized and characterized. In 1, zinc(II) ions are bridged by ADC to form a 1-D chain. The chains are further connected by bib to form a 2-D wave structure. In 2, zinc(II) ions are bridged by two ADA to form a 1-D looped chain, and then the 1-D looped chain is connected through bib resulting in a 2-D network. Fluorescent properties, TG analysis, and XRPD for 1 and 2 are also measured and discussed.