| 钇氮宾的合成与晶体结构表征——2-取代-1-胺基邻碳硼烷与钇的双烷基配合物的反应性 |
| Synthesis and crystal structure characterization of yttrium imido complex: The reactivity of 2-substituted-1-amino-o-carborane with yttrium dialkyl complex |
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| 摘要: 合成了 2-取代-1-胺基邻碳硼烷 2-R-1-NH2-o-C2B10H10(R=CH3，1a；R=Ph，1b)，并研究了其与钇的双烷基配合物[Y(L)(CH2SiMe3)2](L=[2-(2，5-Me2C4H2N)C6H4NC(Ph)=NDipp]-，Dipp=2，6-iPr2C6H3)的反应性。核磁跟踪显示，钇的双烷基配合物与1a或1b按物质的量之比1:1反应，生成钇的烷基-胺基配合物[Y(L)(2-R-1-NH-o-C2B10H10)(CH2SiMe3)](R=CH3，2a；R=Ph，2b)以及钇的双胺基配合物[Y(L)(2-R-1-NH-o-C2B10H10)2](R=CH3，3a；R=Ph，3b)的混合物。将2a、3a的混合物在55 ℃加热12 h后，分离得到钇的桥联氮宾配合物[Y(L)(2-CH3-1-N-o-C2B10H10)]2 (4a)。钇的双烷基配合物[Y(L)(CH2SiMe3)2]与 1a按物质的量之比 1:2反应，仅能分离得到钇的双胺基配合物3a。配合物3a与4a经过单晶X射线衍射确认。 |
| 关键词: 钇氮宾|邻碳硼烷|合成|结构表征 |
| 基金项目: 安徽省高校自然科学基金(No.2023AH052935)和安徽省高校优秀青年人才支持计划(No.gxyq2022110)资助。 |
| Abstract: 2-substituted-1-amino-o-carboranes 2-R-1-NH2-o-C2B10H10 (R=CH3, 1a; R=Ph, 1b) were synthesized and the reactions of these compounds with the yttrium dialkyl complex [Y(L)(CH2SiMe3)2] (L=[2-(2,5-Me2C4H2N)C6H4NC (Ph)=NDipp]-, Dipp=2,6-iPr2C6H3) were investigated. The 1H NMR spectroscopy indicate that the reaction of ytrrium dialkyl complex with one equivalent of 2-R-1-NH2-o-C2B10H10 produce the mixture of ytrrium alkyl-amido complex [Y(L)(2-R-1-NH-o-C2B10H10)(CH2SiMe3)] (R=CH3, 2a; R=Ph, 2b) and bis(amido) complex [Y(L)(2-R-1-NH-o-C2B10H10)2] (R=CH3, 3a; R=Ph, 3b). The yttrium bridging imido complex [Y(L)(2-CH3-1-N-o-C2B10H10)]2 (4a) was obtained by heating the mixture at 55 ℃ for 12 h. Complex 3a was isolated and characterized by treating the yttrium dialkyl complex with two equivalents of 1a. The structures of complexes 3a and 4a were verified by single-crystal X-ray diffraction. |
| Keywords: yttrium imide|o-carborane|synthesis|structure characterization |
| 投稿时间：2025-02-25 修订日期：2025-04-18 |
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