Premium
C RYPTATES XIX . Ligands polyaza‐polyoxa‐macrobicycliques: Synthèse et complexes métalliques
Author(s) -
Lehn JeanMarie,
Montavon François
Publication year - 1976
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19760590516
Subject(s) - chemistry , intramolecular force , transition metal , alkali metal , metal , stereochemistry , cryptand , redox , cyclophane , polymer chemistry , crystallography , inorganic chemistry , crystal structure , organic chemistry , catalysis , ion
Polyaza‐polyoxa macrobicyclic ligands: its synthesis and metal complexes. The synthesis of the polyaza‐polyoxa macrobicyclic ligands 1–4 is described. They form complexes with a variety of metal cations, transition metal cations as well as alkali and alkaline‐earth cations. These complexes may be formulated as cation inclusion complexes, cryptates , in which the cation is contained in the intramolecular cavity. The properties of the complexes are described. An especially interesting feature is that these ligands, polymines of macrobicyclic topology, provide a means of trapping transition metal cations inside a molecular cavity; thus they impose coordination geometries and may modify the spectral and redox properties of the cations.