Redox active macrocyclic receptors for neutral guests

被引：23

作者：

Bernhardt, PV ^{[1
]}

Hayes, EJ ^{[1
]}

机构：

[1] Univ Queensland, Dept Chem, Brisbane, Qld 4072, Australia

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 04期

关键词：

D O I：

10.1021/ic026000c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel series of triazine-appended macrocyclic complexes has been investigated as potential hydrogen bonding receptors for complementarily disposed heterocycles. Cocrystallization of a melamine-appended azacyclam complex of Cull has been achieved with barbitone, the barbiturate anion and thymine. In each case, a complementary DAD/ADA hydrogen bonding motif between the melamine group and the heterocycle has been identified by X-ray crystallography. Electrochemical studies of the copper macrocycles in both nonaqueous and aqueous solution show anodic shifts of the CuII/I redox couple of more than 60 mV upon addition of guest molecules with matching H-bonding motifs. The Zn-II analogues have been synthesized via transmetalation of the Cull complex, and their guest binding properties investigated by NMR spectroscopy. H-1 NMR shifts of up to 0.8 ppm were observed upon addition of guest, and stability constants are similar to those obtained electrochemically.

引用

页码：1371 / 1377

页数：7

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