In:
Zeitschrift für anorganische und allgemeine Chemie, Wiley, Vol. 647, No. 8 ( 2021-04-26), p. 867-875
Abstract:
Neutral complexes [M II (C 5 Me 5 )(Q 2− )(NO + )] with M=Ru or Os and the catecholates Q 2− with 3,5‐di‐ tert ‐butyl (dtbc) or 3,4,5,6‐tetrachloro substituents (tcc) were identified with the oxidation and charge states indicated. Reversible electron transfer was analyzed spectroelectrochemically (EPR, UV‐vis‐NIR, IR), supported by DFT calculations. Reversible reduction was observed for [Ru(C 5 Me 5 )(tcc)(NO)] to occur on the nitrosyl ligand to yield the NO radical complex [Ru II (C 5 Me 5 )(tcc 2− )(NO . )] − , whereas the stepwise oxidation yielded o ‐semiquinone cations, [M II (C 5 Me 5 )(Q .− )(NO + )] + , and dications. The metals remained in the stable low‐spin d 6 states, Ru II and Os II , respectively. Redox potentials were found to depend strongly on the donor or acceptor substitution pattern at Q n .
Type of Medium:
Online Resource
ISSN:
0044-2313
,
1521-3749
DOI:
10.1002/zaac.202000420
Language:
English
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
201094-X
detail.hit.zdb_id:
1481139-X
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