1,3-Diazasilabicyclo[1.1.0]butane with a Long Bridging N-N Bond
1,3-Diazasilabicyclo[1.1.0]butane with a Long Bridging N-N Bond
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具有长桥 N-N 键的 1,3-二氮杂硅双环[1.1.0]丁烷
DOI：
10.1002/anie.201511493
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Kira Mitsuo
中科院分区：
文献类型：
--
作者：
Xiao Xu-Qiong;Dong Zhaowen;Li Zhifang;Yan Chenting;Lai Guoqiao;Kira Mitsuo
A 1,3‐diazasilabicyclo[1.1.0]butane (1) is synthesized as thermally stable crystals by using the cycloaddition reaction of an isolable dialkylsilylene with aziadamantane. The bridge N−N bond length of1(1.70 Å) is the longest among those of known N−N singly‐bonded compounds, including side‐on bridged transition‐metal dinitrogen complexes. The compound1is intact in air but moisture sensitive. No reaction occurs with hydrogen, even under pressure at 0.5 MPa. Irradiation of1with light gives an isomer quantitatively by N−N and adamantyl C−C bond cleavage. The origin of the remarkable N−N bond elongation is ascribed to significant interaction between a Si−C σ* and Ν−Ν π and σ orbitals as determined by DFT calculations of model compounds.
