title: Grid-double-helicate interconversion.
abstract: An interconversion between a binuclear Cu(I) double helicate and a tetranuclear Cu(II) grid is reported. The passage from the Cu(I) double helicate to the Cu(II) grid occurs through oxidation of Cu(I) into Cu(II) or through displacement of Cu(I) by Cu(II). The conversion of the Cu(II) grid into the Cu(I) double helicate occurs through treatment of the grid with triflic acid, reduction of Cu(II) with ascorbic acid, and neutralization with triethylamine. During the studies, in order to ascertain the structure of Cu(I) complexes, a heteroleptic binuclear Cu(I) double helicate was generated.
authors.affiliation: Institut de Science et d'Ingénierie Supramoléculaires, CNRS UMR 7006, 8 Allée Gaspard Monge, Strasbourg, 67083, France. mstadler@unistra.fr
authors.forename: Adrian-Mihail
authors.initials: AM
authors.lastname: Stadler
authors.forename: Christophe
authors.initials: C
authors.lastname: Burg
authors.forename: Juan
authors.initials: J
authors.lastname: Ramírez
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Lehn
mesh_terms: D001205:Ascorbic Acid / Q000737:chemistry; D056831:Coordination Complexes / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005021:Ethylamines / Q000737:chemistry; D007477:Ions / Q000737:chemistry; D008968:Molecular Conformation; D010084:Oxidation-Reduction
chemical_list: D056831:Coordination Complexes; D005021:Ethylamines; D007477:Ions; D003300:Copper; D001205:Ascorbic Acid; C016162:triethylamine