Unsaturated Mn(II)-Centered [Mn(BDC)]_n Metal–Organic Framework with Strong Water Binding Ability and Its Potential for Dehydration of an Ethanol/Water Mixture

Abstract

An unsaturated Mn(II)-centered metal− organic framework was synthesized. The presence of an unsaturated Mn(II) center, together with a guestresponsive structural changing feature, plays a crucial role for strong binding with water, leading to its potential application for water/ethanol separation. In addition, the present framework is thermally stable up to 400 °C, which is beneficial for the regeneration process after adsorption.

Post-synthetic modification of NH2-MIL88B(Fe) with sulfonic acid groups for acid-catalyzed epoxide ring-opening reaction

“…4 Many researchers have focused on the utilization of MOFs as efficient catalysts in different kinds of chemical processes e.g. cycloaddition, 5 alkylation, 6,7 acylation, 8,9 acetalization, 10,11 dehydration, 12,13 esterification, transesterification, 14,15 and epoxide ring-opening. 16,17 Introducing SO 3 H groups onto MOFs provides new supported Brønsted acid catalysts, which could be highly active in acid-catalyzed reactions.…”

Optimized Sieving Effect for Ethanol/Water Separation by Ultramicroporous MOFs

“…But it requires subsequent desorption processes to purify ethanol, leading to a low efficiency. By regulating host–guest interactions, [16] optimizing pore space, [17] incorporating unsaturated metal sites, [18] creating gate opening effect [19] and compositing with polymers, [20] the efficiency of ethanol/water separation can be enhanced to some extent. Alternatively, high‐purity ethanol can be directly obtained using water‐trapping MOFs, such as MOF‐801 and JUC‐110 [21] .…”

Investigation of structural, electronic and magnetic properties of breathing metal–organic framework MIL-47(Mn): a first principles approach

“…Recently a new MOF, Mn( ii ) unsaturated metal nodes and BDC linker, has been synthesized and its structural change toward water adsorption was observed. 43 It may be promising for future synthesis of MIL-47(Mn).…”