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Structure and Specificity of Organic Chelating Agents
Author(s) -
Bayer Ernst,
Fiedler H.,
Hock K. L.,
Otterbach D.,
Schenk G.,
Voelter W.
Publication year - 1964
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.196403251
Subject(s) - chelation , glyoxal , chemistry , selectivity , copper , metal ions in aqueous solution , metal , macromolecule , combinatorial chemistry , inorganic chemistry , polymer chemistry , organic chemistry , catalysis , biochemistry
Macromolecular chelating agents possessing high selectivity for rare metal ions have been synthetized. One of these, with the complexing group of glyoxal bis‐2‐mercaptoanil, is suitable for selective enrichment of gold from sea‐water, while another is suitable for copper and uranium. – The enrichment of metallic ions in nature is discussed, taking hemocyanin as an example. – Both stereochemistry and isomerism, as well as cyclic conjugation during chelate formation, may influence the selectivity of complexing agents. The quasi‐aromatic properties of chelates are discussed.