Electrostatic interaction between cationic calix[4]pyrroles and anionic porphyrins in water

被引：4
|
作者：
Garg, Bhaskar [1 ]
Bisht, Tanuja [1 ]
Chauhan, Shive Murat Singh [1 ]
机构：
[1] Univ Delhi, Dept Chem, Bioorgan Res Lab, Delhi 110007, India
来源：
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2010年 / 67卷 / 1-2期
关键词：
Thiacyclohexanocalix[4]pyrroles; Self-assembly; Ionic interactions; Anionic porphyrins; Absorption spectroscopy; BINDING; CALIXPYRROLES; CHEMISTRY;
D O I：
10.1007/s10847-009-9697-4
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The formation and characterization of molecular assemblies resulting from mixing of solutions of tetracationic calix[4]pyrroles and tetraanionic porphyrins in water are reported. The self-assembly of the complementary building blocks was quantitatively studied by UV-vis, H-1 NMR, Fluorescence and ESI-MS. Binding constants calculated by absorption spectroscopic titrations were in the range of 10(3)-10(5) M-1. The results indicate that the cationic thiacalix[4]pyrroles show greater binding affinity towards metal free porphyrins than metalloporphyrins under neutral conditions.
引用
收藏
页码：241 / 246
页数：6
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