Water Soluble Molecular Capsules via Multiple Ionic Interactions

Title:Water Soluble Molecular Capsules via Multiple Ionic Interactions

Volume: 10 Issue: 2

Author(s): Reza Zadmard, Hajar Entezari, Parinaz Ataeian and Maryam Mirza-Aghayan

Affiliation:

Keywords: Association constant, Calix[4]arene, ESI-MS, ITC, molecular capsule

Abstract: In this paper we introduced the formation of a novel type of capsules resulting from the self-association between oppositely charged complementary building blocks in H₂O. The assembly is based on the interaction between tetraphosphonatcalix[4]arenes 1 and tetraammonium calix[4]arene 2 and 3. Evidence for the formation of the expected 1:1 assemblies is provided by ESI-MS. Isothermal titration calorimetry (ITC) was carried out to measure the enthalpy and entropy of complex formation for capsule 1+3, with association constants in the range of 10⁶ M^-1.

Cite this article as:

Zadmard Reza, Entezari Hajar, Ataeian Parinaz and Mirza-Aghayan Maryam, Water Soluble Molecular Capsules via Multiple Ionic Interactions, Letters in Organic Chemistry 2013; 10 (2) . https://dx.doi.org/10.2174/1570178611310020014