Masoumeh Sayadian - Department of Chemistry, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
Hamidreza Sadegh - West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Division of Functional Materials and Biomaterials, Al. Piastow ۴۵, Szczecin, Poland

Conformationally-rigid para-sulfonato-calix[۴]arene (C۲۸H۲۴O۱۶S۴) was isolated. The NMR parameters of the structure of calix[۴]arenes have been compared. The study of organic structures to form nanoporous materials is a well-known chemical phenomena (supermolecular chemistry) that is necessary for finding the crystal forms of calix[۴]arenes. We investigated and compared the hydrogen bonding, oxygen, and sulfur atom effects on calix[۴]arene via Hartree-fock(HF) theory by the Gaussian ۹۸ of program package.

Calix[۴]arene, DFT, HF, Hydrogen bonding, Nanostructure, Chemical shift