# Comparison of the structural, electrochemical, and spectroscopic properties of two cryptates of trivalent uranium

## TL;DR

This paper compares two uranium-containing cryptates to understand how their structure affects their chemical and electronic properties.

## Contribution

The study reveals how cryptand denticity influences the electrochemical and structural behavior of trivalent uranium complexes.

## Key findings

- The cryptand with smaller denticity shows more favorable electrochemical properties for UIII.
- Shorter bond lengths were observed in the complex with the smaller cryptand.
- The study provides insights for designing better ligands for trivalent uranium.

## Abstract

We describe a study of the influence of cryptand denticity on the structural, electronic, and electrochemical properties of UIII-containing cryptates. Two cryptands (2.2.2 and 2.2.1) are reported. The cryptand with the smaller denticity leads to negative electrochemical potentials and shorter bond lengths that are consistent with a better fit for UIII than the larger cryptand. These studies provide insight into the rational design of cryptand-based ligands for trivalent uranium.

Two cryptates of trivalent uranium are compared with respect to luminescence, solid-state structure, and electrochemistry.