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Bimetallic Gold(I) Complexes with Ethynyl-Helicene and Bis-Phosphole Ligands: Understanding the Role of Aurophilic Interactions in their Chiroptical Properties

El Sayed Moussa, Mehdi; Chen, Hui; Wang, Zuoyong; Srebro-Hooper, Monika; Vanthuyne, Nicolas; Chevance, Soizic; Roussel, Christian; Williams, J.A. Gareth; Autschbach, Jochen; Réau, Régis; Duan, Zheng; Lescop, Christophe; Crassous, Jeanne

Authors

Mehdi El Sayed Moussa

Hui Chen

Zuoyong Wang

Monika Srebro-Hooper

Nicolas Vanthuyne

Soizic Chevance

Christian Roussel

Jochen Autschbach

Régis Réau

Zheng Duan

Christophe Lescop

Jeanne Crassous



Abstract

Monometallic gold(I)-alkynyl-helicene complexes (1 a,b) and bimetallic gold(I)-alkynyl-helicene architectures featuring the presence (2 a,b) or absence (3 a,b) of aurophilic intramolecular interactions were prepared by using different types of phosphole ligands (mono-phosphole L1 or bis-phospholes L2,3). The influence of the AuI d10 metal center(s) on the electronic, photophysical, and chiroptical properties of these unprecedented phosphole-gold(I)-alkynyl-helicene complexes was examined. Experimental and theoretical results highlight the importance of ligand-to-ligand-type charge transfers and the strong effect of the presence or absence of AuI–AuI interactions in 2 a,b.

Citation

El Sayed Moussa, M., Chen, H., Wang, Z., Srebro-Hooper, M., Vanthuyne, N., Chevance, S., …Crassous, J. (2016). Bimetallic Gold(I) Complexes with Ethynyl-Helicene and Bis-Phosphole Ligands: Understanding the Role of Aurophilic Interactions in their Chiroptical Properties. Chemistry - A European Journal, 22(17), 6075-6086. https://doi.org/10.1002/chem.201600126

Journal Article Type Article
Online Publication Date Mar 23, 2016
Publication Date 2016-04
Deposit Date May 30, 2017
Journal Chemistry - A European Journal
Print ISSN 0947-6539
Electronic ISSN 1521-3765
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 22
Issue 17
Pages 6075-6086
DOI https://doi.org/10.1002/chem.201600126