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A New Class of Easily Obtained Carbonate‐Related μ 3 ‐Ligands and a Protein‐Sized Doughnut‐Shaped Coordination Oligomer
Author(s) -
Müller Iris M.,
Robson Richard
Publication year - 2000
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20001201)39:23<4357::aid-anie4357>3.0.co;2-0
Subject(s) - oligomer , chemistry , guanidine , chelation , ring (chemistry) , metal , combinatorial chemistry , stereochemistry , polymer chemistry , organic chemistry
Guanidine‐based ligands can be prepared by a very simple synthesis. These ligands are amenable, in principle, to wide variation and in the anionic form are able to bind three metal centers simultaneously at chelating sites in close proximity (see picture). An oligomer which contains 24 Cd centers, 12 of the ligands shown, and 6 ligands isomeric to them and which forms a doughnutlike ring with a diameter of >30 Å has been characterized.