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Transparent and luminescent glasses of gold thiolate coordination polymers

DOI: 10.1039/D0SC02258F DOI Help

Authors: Shefali Vaidya (Université Claude Bernard Lyon 1, CNRS) , Oleksandra Veselska (Université Claude Bernard Lyon 1, CNRS; Czech Technical University in Prague) , Antonii Zhadan (Université Claude Bernard Lyon 1, CNRS) , Maria Diaz-Lopez (ISIS Facility; Diamond Light Source) , Yves Joly (Université Grenoble Alpes, CNRS, Institut Néel) , Pierre Bordet (Université Grenoble Alpes, CNRS, Institut Néel) , Nathalie Guillou (Université Paris-Saclay, UVSQ, CNRS,) , Christophe Dujardin (Université Claude Bernard Lyon 1, CNRS) , Gilles Ledoux (Université Claude Bernard Lyon 1, CNRS) , François Toche (Université Claude Bernard Lyon 1, CNRS) , Rodica Chiriac (Université Claude Bernard Lyon 1, CNRS) , Alexandra Fateeva (Université Claude Bernard Lyon 1, CNRS) , Satoshi Horike (Kyoto University) , Aude Demessence (Université Claude Bernard Lyon 1, CNRS)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chemical Science , VOL 11 , PAGES 6815 - 6823

State: Published (Approved)
Published: July 2020

Open Access Open Access

Abstract: Obtaining transparent glasses made of functional coordination polymers (CPs) represents a tremendous opportunity for optical applications. In this context, the first transparent and red-emissive glasses of gold thiolate CPs have been obtained by simply applying mechanical pressure to amorphous powders of CPs. The three gold-based CP glasses are composed of either thiophenolate [Au(SPh)]n, phenylmethanethiolate [Au(SMePh)]n or phenylethanethiolate [Au(SEtPh)]n. The presence of a longer alkyl chain between the thiolate and the phenyl ring led to the formation of glass with higher transparency. The glass transitions, measured by thermomechanical analysis (TMA), occurred at lower temperature for CPs with longer alkyl chains. In addition, all three gold thiolate glasses exhibit red emission at 93 K and one of them, [Au(SMePh)]n, remains luminescent even at room temperature. An in-depth structural study of the amorphous gold thiolates by XRD, PDF and EXAFS analysis showed that they are formed of disordered doubly interpenetrated helical chains. These d10 metal-based compounds represent the first examples of transparent and luminescent CP glasses.

Subject Areas: Chemistry, Materials

Facility: ID22 at ESRF

Added On: 12/10/2020 13:50

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Discipline Tags:

Inorganic Chemistry Organic Chemistry Materials Science Polymer Science Chemistry

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