Issue 86, 2016
From the journal:

Chemical Communications

A boron-centered radical: a potassium-crown ether stabilized boryl radical anion†

Ningning Yuan,a   Wenqing Wang,a   Ziye Wu,b   Sheng Chen,a   Gengwen Tan,a   Yunxia Sui,a   Xinping Wang,*a   Jun Jiang ORCID logo *b  and  Philip P. Power*c  

* Corresponding authors

a State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
E-mail: xpwang@nju.edu.cn

b Collaborative Innovation Center of Chemistry for Energy Materials, CAS Key Laboratory of Mechanical Behavior and Design of Materials, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
E-mail: jiangj1@ustc.edu.cn

c Department of Chemistry, University of California, Davis, CA 95616, USA
E-mail: pppower@ucdavis.edu

Abstract

A boron radical contact ion-pair Mes2B{4-(3,5-dimethylpyridinyl)}K(18-crown-6)(THF) (1K) has been isolated and characterized by electron paramagnetic resonance (EPR) spectroscopy, UV-vis absorption spectroscopy and single crystal X-ray diffraction. The geometry, bonding and spin density distribution are shown to be affected by the N⋯K interaction. The unpaired electron resides mainly on the boron atom and falls between those of triarylboron radical anions and neutral boron radicals. The work provides a novel boron-centered radical intermediate, connecting anionic and neutral boryl radicals.

Graphical abstract: A boron-centered radical: a potassium-crown ether stabilized boryl radical anion

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Article information

DOI
https://doi.org/10.1039/C6CC06918E
Article type
Communication
Submitted
23 Aug 2016
Accepted
23 Sep 2016
First published
23 Sep 2016

Chem. Commun., 2016,52, 12714-12716

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A boron-centered radical: a potassium-crown ether stabilized boryl radical anion

N. Yuan, W. Wang, Z. Wu, S. Chen, G. Tan, Y. Sui, X. Wang, J. Jiang and P. P. Power, Chem. Commun., 2016, 52, 12714 DOI: 10.1039/C6CC06918E

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