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Frontispiece: Topological and Steric Constraints to Stabilize Heteroleptic Copper(I) Complexes Combining Phenanthroline Ligands and Phosphines
Author(s) -
Holler Michel,
DelavauxNicot Béatrice,
Nierengarten JeanFrançois
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201981862
Subject(s) - steric effects , copper , chemistry , ligand (biochemistry) , phenanthroline , trigonal crystal system , crystallography , stereochemistry , topology (electrical circuits) , combinatorial chemistry , crystal structure , organic chemistry , mathematics , receptor , combinatorics , biochemistry
Heteroleptic copper(I) complexes have been prepared from macrocyclic phenanthroline derivatives (NN) and bisphosphine (PP) ligands. The topological constraint resulting from the macrocyclic structure of the NN ligand drives the thermodynamic equilibrium towards the exclusive formation of the heteroleptic complex as long as the macrocycle is large and flexible enough to allow for the threading of the PP ligand. Conversely, when the threading is prevented by steric constraints, unprecedented copper(I) complexes with a trigonal coordination geometry are obtained. For more detail, see the Concept article by B. Delavaux‐Nicot, J.‐F. Nierengarten and M. Holler on page 4543 ff.