%0 Journal Article %T thermodynamic study of complex formation berween benzo-15-crown-5 and phenylaza-15-crown-5 with La3+ cation %A Arbab Zavar, Mohammad Hossein %A Heydari, Somayeh %A Ronaghi, Gholam Hossein %J Asian Journal of Chemistry %@ 0970-7077 %D 2011