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Complexation of Dicarboxylates and Phosphates by a Semisynthetic Alkaloid-based Cyclophane in Water by Karen Ochoa Lara; Carolina Godoy-Alcántar; Ismael León Rivera; Alexey V. Eliseev; Anatoly K. Yatsimirsky is a Chemistry article available to read on EtoBox.
What is Complexation of Dicarboxylates and Phosphates by a Semisynthetic Alkaloid-based Cyclophane in Water about?
## Abstract Dicationic __N__,__N__′‐dibenzylated cyclophane‐type derivative **1** of a bisisoquinoline macrocyclic alkaloid, __S,S__‐(+)‐tetrandrine, was prepared and characterized. In aqueous solution **1** undergoes dimerization, which was studied by the concentration dependence of its ^1^H NMR signals. The salt effect on the dimerization constant was analyzed by using different versions of Debye–Hückel‐type equations. ^1^H NMR titration of **1** by 10 dicarboxylate anions of different structures revealed strong peak binding selectivity for succinate in the series of α,ω‐dicarboxylates. Aromatic carboxylates have larger binding constants and for __o__‐phthalate the formation of both 1:1 and 1:2 host–guest complexes is observed. Binding of nucleotides (AMP, ADP and ATP) to **1** is surprisingly insensitive to the guest charge, indicating a major contribution of stacking interactions of the nucleobase with **1**. Copyright © 2001 John Wiley & Sons, Ltd.
Who reads Complexation of Dicarboxylates and Phosphates by a Semisynthetic Alkaloid-based Cyclophane in Water?
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- Author
- Karen Ochoa Lara; Carolina Godoy-Alcántar; Ismael León Rivera; Alexey V. Eliseev; Anatoly K. Yatsimirsky
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0894-3230)
- Published
- 2001
- Language
- EN
- Field
- Chemistry (Physical Sciences)