Work

Structure–property relationship of a complex photoluminescent arylacetylide-gold(I) compound. I: a pressure-induced phase transformation caught in the act

Year: 2024

Type: article

Abstract: A pressure-induced triclinic-to-monoclinic phase transition has been caught `in the act' over a wider series of high-pressure synchrotron diffraction experiments conducted on a large, photoluminescent organo-gold(I) compound. Here, we describe the mechanism of this single-crystal-to-single-crystal phase transition, the onset of which occurs at ∼0.6 GPa, and we report a high-quality structure of the new monoclinic phase, refined using aspherical atomic scattering factors. Our case illustrates how conducting a fast series of diffraction experiments, enabled by modern equipment at synchrotron facilities, can lead to overestimation of the actual pressure of a phase transition due to slow transformation kinetics.

Source: IUCrJ

DOI: 10.1107/s2052252524007681

Authors: Róża Jastrzębska, Tomasz Poręba, Federico Cova, Daniel M. Tchoń, Anna Makal

Institutions: University of Warsaw, École Polytechnique Fédérale de Lausanne, ALBA Synchrotron (Spain), Lawrence Berkeley National Laboratory

Language: English

Topic: High-pressure geophysics and materials

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,200

Funders: European Synchrotron Radiation Facility, Narodowe Centrum Nauki