Chiral effects at the metal center in Fe(III) spin crossover coordination salts

TL;DR

This study provides evidence of chirality at the Fe metal center in specific Fe(III) spin crossover coordination salts, revealing the formation of chiral domains that affect the coordination environment.

Contribution

It demonstrates the presence of chirality at the metal center in Fe(III) spin crossover salts using X-ray absorption spectroscopy, a novel insight into their structural properties.

Findings

Chirality was observed at the Fe metal center.

Chiral domains influence the octahedral coordination.

X-ray absorption spectroscopy revealed chiral effects.

Abstract

Evidence of chirality was observed at the Fe metal center in Fe(III) spin crossover coordination salts [Fe(qsal)2][ Ni(dmit)2] and [Fe(qsal)2](TCNQ)2 from X-ray absorption spectroscopy at the Fe 2p3/2 core threshold. This indicates the formation of chiral domains that influence the octahedral coordination on the Fe core.