Redox-Active Sulphur Diimide Ligand Anion radica
ls of R−N=S=N−R have never been iso
lated or structura
lly characterized. In their Fu
ll Paper on
l="references:https://doi.org/10.1002/chem.201604340">page 1278 ff., N P. Gritsan, R. T. Boer&
eacute;, P. W. Roesky, A. V. Zibarev, S. N. Konchenko et a
l. report the first Cp*
2Ln comp
lexes (Ln = Sm, Eu, Yb; R = NSiMe
3) of su
lphur diimides and demonstrate by exhaustive characterisation (X-ray diffraction, EPR, UV-Vis-NIR spectroscopy, SQUID magnetometry and rigorous ab initio computationa
l methods) that these powerfu
l reducing agents transfer an e
lectron to the coordinated thiazy
l ligand. A brand new wor
ld of redox non-innocent
ligands has thus emerged on the horizon.