Synthesis and characterization of two new metal-organic frameworks with interpenetrated structures and luminescent properties

Two new metal-organic compounds, [Ag-2(HADC)(2)(bimh)] (1) and [Cd(ADC)(bpp)](n) (2) [H(2)ADC=1,3-adamantanedicarboxylic acid, bimh=1,6-bis(2-methyl-imidazole-1-yl)hexane, bpp=1,3-bis(4-pyridyl)propane], have been synthesized and characterized. Compound 1 exhibits a discrete symmetric unit with 0D2D interpenetrating structure. Compound 2 crystallizes in a chiral space group P212121 and presents a threefold interpenetrated 3D diamondoid network containing three helical chains. Thermal stability, X-ray powder diffraction, and luminescence for 1 and 2 are also measured and discussed.