Kinetically-Locked Metallomacrocycle for Host-Guest Chemistry with Bulky Anions

被引：3

作者：

Kawano, Shin-ichiro ^{[1
]}

Harada, Takahiro ^{[1
]}

Sasaki, Ako ^{[1
]}

Tanaka, Kentaro ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Sci, Dept Chem, Furo Cho,Chikusa Ku, Nagoya 4648602, Japan

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2023年 / 26卷 / 04期

关键词：

Anion recognition; Coordination chemistry; Host-Guest systems; Macrocycles; METALLACYCLES; CONSTRUCTION; DISCRETE; COMPLEX; SIZE;

D O I：

10.1002/ejic.202200592

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

As a robust and large molecular receptor, a kinetically-locked trinuclear Co(III) macrocycle was synthesized with bis(beta-diketone) ligands having large pi-panels of 9,10-diphenylanthracene moieties via a combination of Co(II)-assisted self-assembly and subsequent oxidation of the metal centers. The X-ray structure revealed that the macrocycle had a discrete nanocavity of more than 300 angstrom(3), which was surrounded by three anthracenyl panels in the middle. As the macrocycle has three cationic centres on each metal ion and a large cavity, it acts as a guest receptor for sodium tetraphenylborate. The binding constant was estimated to be 4.0x10(-2) M-1 from H-1 NMR titration experiments, whereas no interaction was observed between the macrocycle and potassium 1-adamantanecarboxylate.

引用

页数：5

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