Titanium-Oxide Host Clusters with Exchangeable Guests
Release time:2019-06-12
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- Place of Publication:
- J. Am. Chem. Soc
- Abstract:
- A novel family of water-soluble, polyoxocationic titanium-oxide host–guest clusters are reported herein. They exhibit an unprecedented hexagonal prismatic core structure for hosting univalent cationic guests like K+, Rb+, Cs+ and H3O+. Guest exchange has been studied using 133Cs NMR, showing the flexible pore of a host permits passage of a comparatively larger cation and giving an equilibrium constant of ca. 13 for displacing Rb+ by Cs+. Attractive ion-dipole interaction, depending on host–guest size complementarity, plays a dominant role for the preferential encapsulation of larger alkali-me
- Correspondence Author:
- Guanyun Zhang, Wenyun Li, Caiyun Liu, Jiong Jia, Chen-Ho Tung , and Yifeng Wang*
- Document Type:
- J
- Translation or Not:
- no
- Date of Publication:
- 2017-10-01