Cyclic Solid‐State Multiple Phase Changes with Tuned Photoemission in a Gold Thiolate Coordination Polymer

Oleksandra Veselska (1, 2) , Shefali Vaidya (1, 2) , Chinmoy Das (3) , Nathalie Guillou (4) , Pierre Bordet (5) , Alexandra Fateeva (6) , Francois Toche (6) , Rodica Chiriac (6) , Gilles Ledoux (7) , Stefan Wuttke (8, 9) , Satoshi Horike (3) , Aude Demessence (1, 9)

1 IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon
2 Institute of Experimental and Applied Physics [Prague]
3 Kyoto University
4 ILV - Institut Lavoisier de Versailles
5 NEEL - MRS - Matériaux, Rayonnements, Structure
6 LMI - Laboratoire des Multimatériaux et Interfaces
7 iLM - LUMINESCENCE - iLM - Luminescence
8 UPV / EHU - University of the Basque Country = Euskal Herriko Unibertsitatea
9 Ikerbasque - Basque Foundation for Science

A non-emissive amorphous AuI–thiolate coordination polymer undergoes two successive crystallisation phase changes on mild solid-state heating. The first high symmetric crystalline phase becomes slightly red-emissive and the second, which has a lower symmetry, exhibits intense luminescence due to the presence of aurophilic interactions. These transitions are reversible upon soft hand grinding, offering potential for non-volatile memories.

Mots clés: Polymers; Luminescence; Phase Change; Gold

Domaines: Sciences de l'ingénieur [physics]; Chimie; Physique [physics]

Oleksandra Veselska, Shefali Vaidya, Chinmoy Das, Nathalie Guillou, Pierre Bordet, et al.. Cyclic Solid‐State Multiple Phase Changes with Tuned Photoemission in a Gold Thiolate Coordination Polymer. Angewandte Chemie International Edition, 2022, 61 (14), pp.e202117261. ⟨10.1002/anie.202117261⟩. ⟨hal-03588710⟩