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Titanium-Oxide Host Clusters with Exchangeable Guests.
Zhang, Guanyun; Li, Wenyun; Liu, Caiyun; Jia, Jiong; Tung, Chen-Ho; Wang, Yifeng.
Afiliação
  • Zhang G; Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China.
  • Li W; Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China.
  • Liu C; Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China.
  • Jia J; Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China.
  • Tung CH; Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China.
  • Wang Y; Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China.
J Am Chem Soc ; 140(1): 66-69, 2018 01 10.
Article em En | MEDLINE | ID: mdl-29212316
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-metal cationic guests.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article