在发光的1D和3D terbium calixarene化合物中,托罗状矩和动态控制
Hao Wang1,2, Zhenhua Zhu1,3, Léo La Droitte4
1State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China tang@ciac.ac.cn wpliao@ciac.ac.cn.
Chemical science
|July 7, 2023
概括
研究人员合成了基于兰他尼德的新型单分子托里克 (SMT). 这项研究介绍了第一个具有共价键的3D SMT聚合物,并证明了这些分子磁体中状行为的solvato-switching.
科学领域:
- 分子磁力学分子磁力学
- 固态化学 固态化学
- 材料科学是一种材料科学.
背景情况:
- 在无机铁铁形材料中观察到突破时间逆转和空间逆转对称的铁形时刻.
- 在分子磁力学中,单分子陀罗基 (SMT) 通常是以兰他尼德为基础的,轮状的复合体,具有旋转性量子位和磁电合的潜力.
- 对于SMT的合成策略仍然具有挑战性,并且以前还没有合成共价键的3D SMT.
研究的目的:
- 为了合成具有SMT特征的基于兰化物的新型金属有机聚合物.
- 为了研究1D和3DTb(iii) - 素聚合物的SMT特性.
- 为了实现和展示SMT行为的solvato-switching.
主要方法:
- 合成两种发光的Tb(iii) - 烯聚合物:一个1D链 (1) 和一个3D网络 (2).
- 对 SMT 特性进行实验性研究,重点关注 Tb 4 单元内的 Tb 3 磁性异性质轴的圆形布局.
- Ab initio计算以支持实验发现.
主要成果:
- 成功制备了两个含有正方形Tb4单位的Tb(iii) - 素聚合物.
- 实验和理论证实了两种聚合物的SMT特征,这些聚合物源于磁性异构轴的圆形布局.
- 化合物2代表了第一个具有共价键的3D SMT聚合物.
- 通过溶解/溶解过程在化合物1中展示SMT行为中的solvato切换.
结论:
- 这项研究成功地合成了新型Tb(iii) - 素聚合物,这些聚合物具有SMT特性.
- 这项工作报告了第一个共价结合的3D SMT聚合物和SMT行为中的solvato切换的第一个实例.
- 这些发现促进了分子磁性材料的开发,具有可调节的 toroidal 特性.
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