期刊
NATURE COMMUNICATIONS
卷 11, 期 1, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-020-17303-4
关键词
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资金
- National Key R&D Program of China [2016YFA0300404, 2018YFA0306004]
- National Natural Science Foundation of China [21525102, 21690062, 21703099, 21993044]
- Natural Science Foundation of Jiangsu Province for Youth [BK20170964]
- Nanjing Tech University [39837132, 39837123]
- SICAM Fellowship from Jiangsu National Synergetic Innovation Center for Advanced Materials
The concept of odd-electron sigma -bond was first proposed by Linus Pauling. Species containing such a bond have been recognized as important intermediates encountered in many fields. A number of radicals with a one-electron or three-electron sigma -bond have been isolated, however, no example of a diradical based odd-electron sigma -bonds has been reported. So far all stable diradicals are based on two s/p-localized or -delocalized unpaired electrons (radicals). Here, we report a dication diradical that is based on two Se therefore Se three-electron sigma -bonds. In contrast, the dication of sulfur analogue does not display diradical character but exhibits a closed-shell singlet. p id=Par Stable diradicals are generally based on two s/p-localized or pi -delocalized unpaired electrons (radicals). Here, the authors report a dication diradical that is based on two Se therefore Se three-electron sigma -bonds.
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