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A conjugated diosma-octacyclic complex and its mixed-valence singly reduced state

Hu, Y. X., Deng, Q., Ou, Y.-P., Yang, X., Zhang, J., Garrett, E. K. ORCID:, Zhu, J. ORCID:, Liu, S. H. ORCID: and Hartl, F. ORCID: (2022) A conjugated diosma-octacyclic complex and its mixed-valence singly reduced state. Inorganic Chemistry Frontiers, 9 (22). pp. 5893-5902. ISSN 2052-1553

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To link to this item DOI: 10.1039/d2qi01523d


In this work two dicationic diosma-octacyclic complexes have successfully been synthesized and fully characterized. One of them, with aromatic osmapentalene termini linked by the non-aromatic osmafuran moiety to the rigid naphthalenediolate bridge, represents the first example of a fused, fully conjugated dimetalla-octacyclic complex. A reference complex with more flexible biphenolate in the bridging position was also prepared. Their redox and electronic properties were investigated by combined methods of cyclic voltammetry and UV-vis-NIR–IR spectroelectrochemistry, supported by density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations. The rigid octacyclic complex forms a stable singly reduced mixed-valence species with the spin density localized at one of the osmapentalene termini.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:108965
Uncontrolled Keywords:Inorganic Chemistry
Publisher:Royal Society of Chemistry


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