A new metal-organic framework with suitable pore size and ttd-type topology revealing highly selective adsorption and separation of organic dyes.

A microporous metal-organic framework (MOF) with ttd-type topology, [Mn 2 (FDDI)](DMF) 5.5 (H 2 O) 4.5 (Mn-MOF ; H 4 FDDI = 5,5'-(9H-fluorene-2,7-diyl)-diisophthalic acid (DMF = C 3 H 7 NO) was solvothermal obtained and characterized. Mn-MOF contains three different channels that show excellent removal of low concentration of crystal violet as compared with methyl orange and methylene blue from the aqueous solution at 298 K. A novel microporous metal-organic framework (MOF) with ttd-type topology has been obtained that exhibited excellent removal of low concentration of crystal violet (CV+) as compared with methyl orange (MO−) and methylene blue (MB+) from the aqueous solution at room temperature. Image 1 • A novel microporous MOF Mn-MOF was synthesized and structurally characterized. • Mn-MOF has three different types of channels and exhibits ttd-type topology. • Mn-MOF shows excellent removal of low concentration of crystal violet (CV+). [ABSTRACT FROM AUTHOR]