Fig. 3: Structural evolution of AgSePh under high pressure. | Nature Communications

Fig. 3: Structural evolution of AgSePh under high pressure.

From: Brightening self-trapped exciton emission in 2D metal-organic chalcogenolates via argentophilicity-mediated anisotropic compression

Fig. 3

a The multilayered crystal structure of AgSePh. Gray ball: Ag; green ball: Se; black ball: C; orange ball: H. The Ag-Se inorganic monolayer viewed along the c axis, displays a distorted hexagonal lattice of in-plane Ag atoms (lower right). The argentophilic monolayer in the P21/c crystal structure with three different Ag-Ag bond lengths marked by 1, 2 and 3. (lower left). b The lattice parameter evolutions of AgSePh as a function of pressure. c Average length changes of Ag-Ag bond as a function of pressure. d Pressure-driven evolution of the average Ag-Se-Ag bond angle. e Ag-Se inorganic framework at ambient conditions and 4.0 GPa, displays the displacement of the Ag atom in the out-of-plane direction.

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