Proton NMR study of the stoichiometry, stability and thermodynamics of complexation of Rb + ion with 18-crown-6 in binary 
dimethylsulfoxide-nitrobenzene mixtures
Mohsen Irandoust,  Mojtaba Shamsipur,  Hiua Daraei 
Journal of Inclusion Phenomena and Macrocyclic Chemistry
vol. 66, no.3, pp. 365-370, 2010
DOI:    10.1007/s10847-009-9654-2
Proton NMR study of the stoichiometry, stability and thermodynamics of complexation of Ag+ ion with octathia-24-crown-8 in binary dimethylsulfoxide-nitrobenzene mixtures
Mojtaba Shamsipur,  Mohsen Irandoust,  Kamal Alizadeh,  Vito Lippolis 
Journal of Inclusion Phenomena and Macrocyclic Chemistry
vol. 59, no.3, pp. 203-209, 2007
DOI:  10.1007/s10847-007-9317-0
Spectrophotometric Studies of the Thermodynamics of Molecular Complexation betweenFree Base Meso-Tetraarylporphyrins and Iodine(III) Chloride
Hossein Dehghani,  Fatemeh Behnoudnia,  Mohammad Reza Mansournia,  Sara Bakhshayesh 
Journal of Solution Chemistry
 vol. 38, no. 6, pp. 771-778, 2009
DOI:  10.1007/s10953-009-9409-0
A Proton NMR Study of the Stoichiometry and Stability of 18Crown6 Complexes with K + ,Rb + and Tl + Ions in Binary Dimethyl Sulfoxide-Nitrobenzene Mixtures
Mojtaba Shamsipur,  Mohsen Irandoust 
Journal of Solution Chemistry
vol. 37, no. 5, pp. 657-664, 2008
DOI: 10.1007/s10953-008-9261-7