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Platinum(II)-Based Convex Trigonal-Prismatic Cages via Coordination-Driven Self-Assembly and C60 Encapsulation
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2017-09-25 00:00:00 , DOI: 10.1021/acs.inorgchem.7b01967
Mingming Zhang 1, 2 , Hongchuang Xu 3 , Ming Wang 4 , Manik Lal Saha 2 , Zhixuan Zhou 2 , Xuzhou Yan 2 , Heng Wang 5 , Xiaopeng Li 5 , Feihe Huang 6 , Nengfang She 3 , Peter J. Stang 2
Affiliation  

The development of three-dimensional (3D) supramolecular coordination complexes is of great interest from both fundamental and application points of view because these materials are useful in molecular catalysis, separation and purification, sensing, etc. Herein, we describe the synthesis of two Klärner’s molecular-clip-based tetrapyridyl donors, which possess a C-shaped structure as shown by X-ray analysis, and subsequently use them to prepare four convex trigonal-prismatic cages via coordination-driven self-assembly with two 180° diplatinum(II) acceptors. The cages are fully characterized by multinuclear NMR (31P and 1H) analysis, diffusion-ordered spectroscopy, electrospray ionization time-of-flight mass spectrometry, and UV/vis absorption spectroscopy. Moreover, the incorporation of molecular-clip-based ligands provides these cages with free cavities to encapsulate fullerene C60 via aromatic interactions, which may be useful for fullerene separation and purification. The studies described herein enlarge the scope of the platinum(II)-based directional bonding approach in the preparation of curved 3D metallacages and their host–guest chemistry.

中文翻译:

通过协调驱动的自组装和C 60封装的基于铂(II)的凸三角棱柱笼

三维(3D)超分子配位化合物的开发从基础和应用的角度都引起了极大的兴趣,因为这些材料可用于分子催化,分离和纯化,传感等。在此,我们描述两种Klärner's的合成X射线分析显示具有C形结构的基于分子夹子的四吡啶基供体,随后用它们通过与两个180°双铂的配位驱动自组装来制备四个凸三角棱柱笼(II)接受者。这些笼子的特征是通过多核NMR(31 P和1H)分析,扩散有序光谱,电喷雾电离飞行时间质谱和UV / vis吸收光谱。而且,基于分子夹子的配体的结合为这些笼子提供了自由的空腔,以通过芳族相互作用将富勒烯C 60包封,这对于富勒烯的分离和纯化可能是有用的。本文所述的研究扩大了在弯曲的3D金属绷带的制备及其主体与客体之间的化学反应中,基于铂(II)的定向键合方法的范围。
更新日期:2017-09-25
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