Molecular Vises for Precisely Positioning Ligands near Catalytic Metal Centers in Metal-Organic Framework,Journal of the American Chemical Society

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Molecular Vises for Precisely Positioning Ligands near Catalytic Metal Centers in Metal-Organic Framework
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2020-08-21 , DOI: 10.1021/jacs.0c07450
Wei Yan ₁ , Shenhui Li ₂ , Tao Yang ₃ , Yucong Xia ₁ , Xinrui Zhang ₁ , Chao Wang ₁ , Zier Yan ₄ , Feng Deng ₂ , Qianghui Zhou _{3,

5} , Hexiang Deng _{1,

3}

Affiliation

We report the construction of molecular vise by pairing a tritopic phenylphosphrous (III) linker and a monotopic link-er in opposite position within metal-organic framework. The angle between these linkers at metal sites is fixed upon change of functionality in the monotopic linker, while the distance between them is precisely tuned. Such distance within molecular vise is accurately measured by 1H-31P solid-state nuclear magnetic resonance. This unveils the impact of the distance on catalytic performance without interference from electrostatic effect or angle change of the ligand, unprecedented in classic organometallic complexes.

中文翻译：

用于在金属-有机框架中的催化金属中心附近精确定位配体的分子钳

我们通过在金属有机框架内的相反位置配对三元苯基磷 (III) 接头和单元接头来报告分子虎钳的构建。金属位点上这些接头之间的角度根据单位接头中的功能变化而固定，而它们之间的距离则经过精确调整。通过1H-31P固态核磁共振精确测量分子钳内的这种距离。这揭示了距离对催化性能的影响，而不受静电效应或配体角度变化的干扰，这在经典的有机金属配合物中是前所未有的。

更新日期：2020-08-21

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