Substituted Bisphosphanylamines as Ligands in Gold(I) Chemistry – Synthesis and Structures

Abstract

Dimethyl 5-aminoisophthalate, which is a building block of amino-substituted tetralactam macrocycles, was used as ligand in gold(I) chemistry to form model complexes for macrocyclic gold compounds. Reaction of dimethyl 5-aminoisophthalate with chlorodiphenylphosphine gave the diphosphine compound dimethyl 5-[N,N-bis­(diphenyl­phosphanyl)­amino]iso­phthalate (dmbpaip). This compound can further be reacted with [AuCl(tht)] (tht = tetrahydrothiophene) to give the dinuclear complex [Au₂Cl₂(dmbpaip)]. In contrast, treatment of dmbpaip with [Au(tht)₂]ClO₄ resulted in the ionic compound [Au₂(dmbpaip)₂](ClO₄)₂ in which the cation forms an eight-membered Au₂P₄N₂ heterocycle. In both gold(I) compounds Au⋯Au interactions are observed. All new compounds were characterized by single-crystal X-ray diffraction.

Dr. Dennis Wiedemann

Technischer Berater für Umweltfragen
Chemiker · Kristallograph

Ich bin promovierter Chemiker und berate zu immissionsschutz- und wasserrechtlichen Genehmigungsfragen.