Bao Manling, Dai Yuyang, Liu Chunmeng, Su Yuanting
College of Chemistry, Chemical Engineering and Materials Science, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China.
State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, P. R. China.
Inorg Chem. 2022 Jul 25;61(29):11137-11142. doi: 10.1021/acs.inorgchem.2c00966. Epub 2022 Jul 10.
Anionic oxoboranes and neutral iminoboranes, which are isoelectronic to ketones and alkynes, respectively, have attracted much attention because of their unique structures and various reactivity. However, acid/base-free oxoboranes and iminoboranes are still limited, and readily accessible examples with diverse electronic and steric characteristics are highly desirable. Herein, we report the first syntheses of the acyclic anionic oxoborane and iminoborane bearing two boryl ligands, both of which are acid/base-free. Spectroscopic analysis, X-ray crystallography, and theoretical calculations reveal that and possess a polarized terminal B═O double bond and central B≡N triple bond, respectively.
分别与酮和炔烃等电子的阴离子氧硼烷和中性亚氨基硼烷，因其独特的结构和多样的反应性而备受关注。然而，无酸碱的氧硼烷和亚氨基硼烷仍然有限，非常需要具有不同电子和空间特征且易于获得的实例。在此，我们报道了首例带有两个硼基配体的无环阴离子氧硼烷和亚氨基硼烷的合成，二者均无酸碱。光谱分析、X射线晶体学和理论计算表明，前者和后者分别具有极化的末端B═O双键和中心B≡N三键。
