Yagi Atsumi, Kisu Haruki, Yamashita Makoto
Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603 Aichi, Japan.
Dalton Trans. 2019 Apr 23;48(17):5496-5499. doi: 10.1039/c9dt01117j.
A hydrogen-bridging tetraborane(6) was synthesized from boryllithium, a boron nucleophile, in three steps. The structural and spectroscopic analyses of the tetraborane(6) revealed σ-donor and π-acceptor effects of diaminoboryl substituents toward the central B-B moiety having a multiple bond character. DFT calculations also supported the experimentally observed substituent effect of the boryl group.
通过三步反应，由硼锂（一种硼亲核试剂）合成了一种氢桥连四硼烷（6）。对该四硼烷（6）的结构和光谱分析表明，二氨基硼基取代基对具有多重键特征的中心B-B部分具有σ供体和π受体效应。密度泛函理论计算也支持了实验观察到的硼基取代基效应。
