Giuseppe Resnati1, Andrea Daolio2, Andrea Pizzi2, Giancarlo Terraneo2, Maurizio Ursini2, Antonio Frontera3. 1. Polytechnic of Milan, Department of Chemistry, Materials, Chemical Engineer., 7, via Mancinelli, 20131, Milan, ITALY. 2. Politecnico di Milano Dipartimento di Chimica Materiali e Ingegneria Chimica Giulio Natta, Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", ITALY. 3. Universitat de les Illes Balears, Department of Chemistry, SPAIN.
Abstract
The interactional landscape in crystalline tetrachloridoaurates of acetylcholine and dimethyl-propiothetine is characterized by Au ∙∙∙ Cl and Au ∙∙∙ O short contacts. Former interactions assemble the AuCl 4 - units into supramolecular anionic polymers, and latter interactions append the acetylcholine and propiothetine units to the polymer. The distorted octahedral geometry of the bonding pattern around gold is rationalized based on the anisotropic distribution of the electron density enabling gold to behave as an electrophile (π-hole coinage bond donor). Computation proves that gold in negatively charged species can function as acceptor of electron density. The attractive nature of Au ∙∙∙ Cl/O interactions described here complement aurophilic bonds in the toolbox of gold centered interactions.
The interactional landscape in crystalline tetrachloridoaurates of pan class="Chemical">acetylcholine and dimethyl-propiothetine is characterized by Au ∙∙∙ Cl and Au ∙∙∙ O short contacts. Former interactions assemble the AuCl 4 - units into supramolecular anionic polymers, and latter interactions append the acetylcholine and propiothetine units to the polymer. The distorted octahedral geometry of the bonding pattern around gold is rationalized based on the anisotropic distribution of the electron density enabling gold to behave as an electrophile (π-hole coinage bond donor). Computation proves that gold in negatively charged species can function as acceptor of electron density. The attractive nature of Au ∙∙∙ Cl/O interactions described here complement aurophilic bonds in the toolbox of gold centered interactions.
Authors: Andrea Daolio; Andrea Pizzi; Giancarlo Terraneo; Antonio Frontera; Giuseppe Resnati Journal: Chemphyschem Date: 2021-09-28 Impact factor: 3.520