Acid/Base-Free Acyclic Anionic Oxoborane and Iminoborane Bearing Diboryl Groups
Acid/Base-Free Acyclic Anionic Oxoborane and Iminoborane Bearing Diboryl Groups
复制标题
带有二硼基的无酸/碱无环阴离子氧硼烷和亚氨基硼烷
DOI：
10.1021/acs.inorgchem.2c00966
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发表时间：
2022-07-10
影响因子：
4.6
通讯作者：
Su, Yuanting
中科院分区：
文献类型：
--
作者：
Bao, Manling;Dai, Yuyang;Su, Yuanting
摘要：阴离子氧硼烷和中性亚胺硼烷分别与酮和炔等电子，因其独特的结构和多样的反应活性而受到人们的广泛关注。然而，无酸/碱的氧代硼烷和亚氨基硼烷仍然是有限的，并且具有不同电子和空间特征的容易获得的实例是高度期望的。在此，我们报告的第一个合成的无环阴离子氧硼烷2和亚胺硼烷4轴承两个硼基配体，这两个都是酸/碱自由。光谱分析、X射线晶体学和理论计算表明，2和4分别具有极化的末端B=O双键和中心BN三键.
ABSTRACT: 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 2 and iminoborane 4 bearing two boryl ligands, both of which are acid/base-free. Spectroscopic analysis, X-ray crystallography, and theoretical calculations reveal that 2 and 4 possess a polarized terminal B=O double bond and central BN triple bond, respectively.