Yılmaz, AydanYılmaz, MustafaBartsch, Richard A.2020-03-262020-03-2620061060-13251520-5738https://dx.doi.org/10.1080/10601320600598845https://hdl.handle.net/20.500.12395/20701A new calixcrown-6 oligomer 5 was synthesized by reacting a 1,3-distal di-amino derivative of cone p-tert- butylcalix[ 4] crown-6 with malonyl dichloride. Extraction studies with precursor monomers 2 and 3 and oligomer 5 showed differences in their metal cation extraction behavior and selectivity. Precursors monomers 2 and 3 were selective for Hg2+; whereas, oligomer 5 showed high affinity towards both alkali (Li+, Na+, K+, and Cs+) and heavy metal cations (Cu2+, Cd2+, Hg2+ and Pb2+).en10.1080/10601320600598845info:eu-repo/semantics/closedAccesscalixarenespolyamide oligomermetal ion extractionArticle4304.05.2020637645Q2WOS:000238112600003Q3