Potassium cryptate of a macrobicyclic ligand featuring a reducible hexakis(phenylthio)benzene electron-acceptor site

被引：17

作者：

Mayor, M ^{[1
]}

Lehn, JM ^{[1
]}

机构：

[1] Univ Strasbourg 1, Inst Le Bel, CNRS URA 422, Lab Chim Supramol, F-67000 Strasbourg, France

来源：

HELVETICA CHIMICA ACTA | 1997年 / 80卷 / 08期

关键词：

D O I：

10.1002/hlca.19970800802

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The synthesis and structural characterization of the macrobicyclic ligand 1 containing a reducible hexakis(phenylthio)benzene electron-acceptor site is described. It is based on the condensation of the tetraoxa-diazamacrocycle 3 with a suitably functionalized derivative 4 of hexakis(phenylthio)benzene. Complexation of a potassium cation by 1 gives the corresponding cryptate 2, with a stability constant of ca. 4000 M-1 as determined by IH-NMR titration in CD,CN. The reduction potential of the hexakis(phenylthio)benzene electron-acceptor site in 2 is shifted by 170 mV towards more positive values with respect to that in 1 by complexation of potassium.

引用

页码：2277 / 2285

页数：9

共 21 条

[1]

ATWOOD JL, 1996, COMPREHENSIVE SUPRAM, V1

[2]

CHEN Z, 1992, CROWN COMPOUNDS FUTU

[3] CONTRASTING ONE-CATION AND 2-CATION BINDING BEHAVIOR IN SYN-ANTHRAQUINONE AND ANTI-ANTHRAQUINONE BIBRACCHIAL PODAND (BIP) MONO-ANIONS AND DIANIONS ASSESSED BY CYCLIC VOLTAMMETRY AND ELECTRON-PARAMAGNETIC RESONANCE SPECTROSCOPY [J].