A Highly Water‐Tolerant Magnesium(II) Coordination Polymer Derived from a Flexible Layered Structure

Abstract

A two-dimensional (2D) layered Mg(II) coordination polymer (CP) with a high tolerance for H2 O was designed, synthesised, and crystallographically characterised. The synthesis was achieved by the introduction of a flexible 2D layered structure composed of Mg(II) ions and isonicotinate N-oxide ligands. Owing to its high H2 O tolerance, the obtained 2D layered structure has the flexibility to repeatedly adsorb a large amount of H2 O associated with interlayer expansion and enable the removal of H2 O from a H2 O/2-propanol mixed vapour. These results indicate that the CP could be an excellent dehydrating agent.

Two-Dimensional Metal-Organic Framework Materials: Synthesis, Structures, Properties and Applications

“…The second step may be attributed to the increase of the pore volume by expansion of the interlayer regions. Similar examples with dynamic nature of the framework and hysteresis with various guest molecules has highlighted the importance and the role of “guest–framework” interactions and the role of swelling in selective sorption studies. − In a few cases, the crystallinity of the framework also lost and might be due to the loss of long-range order during this dynamic behavior. − …”

Dimensionality of luminescent coordination polymers of magnesium ions and 1,1′-ethynebenzene-3,3′,5,5′-tetracarboxylic acid modulated by structural inducing agents

“…In the field of CPs, alkaline earth-metal-based CPs represent an important subcategory of CPs with interesting structures and fascinating physical properties. 21 With respect to the transition/rare earth metal-based CPs, the alkaline earth–metal-based CPs have a series of advantages such as low/no toxicity and low cost due to their abundance in earth; 22 however, they have received less attention. 23 As a cheap and abundant ion source, the alkaline earth metal ions with a closed-shell electronic configuration are suitable for the preparation of luminescent CPs that have the characteristics of ligand emission.…”