A Polar Copper−Boron One-Electron σ‑Bond
Abstract
Virtually all chemical bonds consist of one or several pairs of electrons shared by two atoms. Examples of σ-bonds made of a single electron delocalized over two neighboring atoms were until recently found only in gas-phase cations such as H_2^+ and Li_2^+ and in highly unstable species generated in solid matrices. Only in the past decade was bona fide one-electron bonding observed for molecules in fluid solution. Here we report the isolation and structural characterization of a thermally stable compound featuring a Cu–B one-electron bond, as well as its oxidized (nonbonded) and reduced (two-electrons-bonded) congeners. This triad provides an excellent opportunity to study the degree of σ-bonding in a metalloboratrane as a function of electron count.
Additional Information
© 2013 American Chemical Society. Published In Issue March 13, 2013; Article ASAP March 04, 2013; Just Accepted Manuscript February 18, 2013. This work was supported by the Gordon and Betty Moore foundation. M.-E.M. acknowledges a Fellowship for Advanced Researchers from the Swiss National Science Foundation. L.Z. acknowledges a postdoctoral fellowship from Natural Sciences and Engineering Research Council of Canada. We acknowledge the Gordon and Betty Moore Foundation, the Beckman Institute, and the Sanofi-Aventis BRP at Caltech for their generous support of the Molecular Observatory at Caltech. SSRL is operated for the DOE and supported by its Office of Biological and Environmental Research, and by the NIH, NIGMS (including P41GM103393), and the NCRR (P41RR001209). The authors declare no competing financial interest.Attached Files
Published - ja4006578.pdf
Supplemental Material - ja4006578_si_001.pdf
Supplemental Material - ja4006578_si_002.cif
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Additional details
- Eprint ID
- 37931
- Resolver ID
- CaltechAUTHORS:20130415-092609404
- Gordon and Betty Moore Foundation
- Swiss National Science Foundation Fellowship for Advanced Researchers
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Gordon and Betty Moore Foundation
- Caltech Beckman Institute
- Caltech Sanofi-Aventis Bioengineering Research Program (BRP)
- Department of Energy (DOE) Office of Biological and Environmental Research
- NIH
- P41GM103393
- NIGMS
- P41RR001209
- NCRR
- Created
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2013-04-15Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field