Structural and Gas Uptake Studies on Iron(II) β‑Diketiminate Metallomacrocycles
Adam N. Barrett, Leah Webster, Danila Gasperini, Rémi Castaing, Mary F. Mahon, Ruth L. Webster
TL;DR
This paper reports the synthesis and characterization of iron-based macrocycles that can adsorb gases, showing potential for applications in materials science.
Contribution
The novelty lies in the structural variation of iron metallomacrocycles and their gas adsorption properties in the solid state.
Findings
Three iron metallomacrocycles with different numbers of iron centers were synthesized and structurally characterized.
The macrocycles exhibit extended solid-state structures similar to metal-organic frameworks.
Gas uptake studies revealed mesoporous behavior with type II nitrogen isotherms.
Abstract
Three iron metallomacrocycles were synthesized and characterized using single crystal X-ray crystallography. Varying the amide coligand allows for macrocycles containing three, four, or six iron centers. The metallomacrocycles show extended structures in the solid state that are reminiscent of metal-organic framework structures; thus, the adsorbative properties of the complexes in the solid state have been investigated using N2. Based on the data, three metallomacrocyles display classical type II isotherms and pore size distributions synonymous with mesoporous materials.
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Taxonomy
TopicsMetal-Organic Frameworks: Synthesis and Applications · Supramolecular Chemistry and Complexes · Crystallography and molecular interactions