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Metal‐Ion‐Templated Polymers: Synthesis and Structure of N ‐(4‐Vinylbenzyl)‐1,4,7‐Triazacyclononanezinc( II ) Complexes, Their Copolymerization with Divinylbenzene, and Metal‐Ion Selectivity Studies of the Demetalated Resins—Evidence for a Sandwich Complex in the Polymer Matrix
Author(s) -
Chen Hong,
Olmstead Marilyn M.,
Albright Robert L.,
Devenyi Jozsef,
Fish Richard H.
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199706421
Subject(s) - divinylbenzene , copolymer , selectivity , polymerization , metal , ionic radius , polymer chemistry , polymer , metal ions in aqueous solution , ionic bonding , ion , materials science , chemistry , organic chemistry , catalysis , styrene
The spatial arrangement of ligands 1 oriented by the complexed template ion during polymerization explains the unexpectedly high Cu 2+ : Fe 3+ selectivity of the polymer formed from [Zn( 1 )] 2+ with a cross‐linking agent, divinylbenzene. The ionic radius of the Cu 2+ ion is similar to that of the Zn 2+ template. The distinct loss of Zn 2+ on polymerization strongly suggests that a sandwich arrangement results; that is, the [Zn( 1 ) 2 ] 2+ complex forms from [Zn( 1 )] 2+ .