期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 141, 期 13, 页码 5164-5168出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.9b02173
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资金
- Nanyang Technological University (NTU)
- Singapore Ministry of Education [MOE2015-T2-2-032]
Reaction of a 1,2-diboraallene 1 with tetradibromodiborane B2Br4 coordinated by a cyclic (alkyl)(amino)carbene (cAAC) in a 3:1 ratio affords a neutral tetraboron species 2 that possesses a planar tetraatomic boron(0) unit with the average oxidation state of zero. X-ray diffraction analysis and computational studies indicate that 2 features the delocalized electrons in the part of the sigma-framework of the B-4 unit, as well as the conjugated pi-system over the C-B-3-C moiety.
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