# Structural and Gas Uptake Studies on Iron(II) β‑Diketiminate Metallomacrocycles

## 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.

## Key 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.