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Strategies for Nonmacrocyclic Polythioether Ligands: New Pentacoordinating Architectures
Author(s) -
Desper John M.,
Gellman Samuel H.
Publication year - 1994
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.199403191
Subject(s) - stereospecificity , chelation , chemistry , stereochemistry , contrast (vision) , combinatorial chemistry , computer science , organic chemistry , catalysis , artificial intelligence
Cu II ions form exclusively 1:1 complexes with polythioethers 1 and 2 , which have a central, cis ‐disubstituted thiane and thiepane unit, respectively. In contrast, an acyclic polythioether analogue forms higher order complexes. These results indicate that nonmacrocyclic thioethers may also serve as effective chelating ligands. The stereospecific synthesis of 1 and 2 also points the way to novel thiacryptands.