Isolation and reversible dimerization of a selenium–selenium three-electron σ-bond

Senwang Zhang, Xingyong Wang, Yuanting Su, Yunfan Qiu, Zaichao Zhang and Xinping Wang ()
Additional contact information
Senwang Zhang: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University
Xingyong Wang: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University
Yuanting Su: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University
Yunfan Qiu: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University
Zaichao Zhang: Jiangsu Key Laboratory for the Chemistry of Low-dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University
Xinping Wang: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract Three-electron σ-bonding that was proposed by Linus Pauling in 1931 has been recognized as important in intermediates encountered in many areas. A number of three-electron bonding systems have been spectroscopically investigated in the gas phase, solution and solid matrix. However, X-ray diffraction studies have only been possible on simple noble gas dimer Xe∴Xe and cyclic framework-constrained N∴N radical cations. Here, we show that a diselena species modified with a naphthalene scaffold can undergo one-electron oxidation using a large and weakly coordinating anion, to afford a room-temperature-stable radical cation containing a Se∴Se three-electron σ-bond. When a small anion is used, a reversible dimerization with phase and marked colour changes is observed: radical cation in solution (blue) but diamagnetic dimer in the solid state (brown). These findings suggest that more examples of three-electron σ-bonds may be stabilized and isolated by using naphthalene scaffolds together with large and weakly coordinating anions.

Date: 2014
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms5127 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5127

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms5127

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().