Author/Authors :
Mahouachi, Mouna Laboratoire de Conception Moléculaire - Ecole Chimie Polymères Matériaux, France , Mahouachi, Mouna Université de Bizerte - Faculté des Sciences, Tunisia , Abidi, Rym Laboratoire de Conception Moléculaire - Ecole Chimie Polymères Matériaux, France , Kim, Yang Kosin University - Department of Chemistry and Advanced Materials, Korea , Lee, Sang H. Kosin University College of Medicine - Department of Surgery, Korea , Jung, Jong H. Gyeongsang National University - Research Institute of Natural Science - Department of Chemistry, Chinju , Kim, Jong S. Dankook University - Department of Chemistry, Korea , Vicens, Jacques Laboratoire de Conception Moléculaire - Ecole Chimie Polymères Matériaux, France
Abstract :
Reactions between tripodal CH3C(CH2NH2)3 = ‘tame’ and CH3C(CH2NHCH2CH2NH2)3 = ‘sen’ withthe monomethoxycarbonylmethyl ether 1 lead to the ready isolation of tame-dicalix 2, tame-tricalix 3 and sentricalix 4. Studies of complex formation of 3 and 4 with Zn(II) showed that ‘tame’ residue is incapable of coordinating the metal in its N3 donor site, while Zn(II) is preferentially coordinated in the carbomethoxyamido functions and two hydroxyl groups of the calix[4]units of 4.
Keywords :
Calixarenes , hyperbranched molecules , tripodal ligands , Zn , complexation
