Molecules, Volume 26, Issue 17
2021 September-1 - 316 articles
Cover Story: Consecutive, individually resolved redox processes in compounds with two or more identical redox sites are often assumed to act as an indicator for electronically coupled mixed-valent states. Here, we present a macrocyclic tetraruthenium complex, which comprises two redox-active divinylphenylene-bridged diruthenium entities and two C5O52- croconate linkers. It has been revealed, by in-depth spectroscopic studies of the oxidized forms of the complex, that the potentially likewise redox-active croconate linkers behave innocently, in regards to redox processes, in this particular environment, and that the sizable redox splittings and the shifts in the CO stretching vibrations of the carbonyl ligands at the neutral and positively charged metal sites are entirely due to electrostatic and inductive effects. This makes this complex a true “pretender”. View this paper. - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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