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Extreme pressure-induced shifts of emission energies in M[Au(CN)₂] and M₂[Pt(CN)₄]•nH₂O - Compounds with low-dimensional metal-metal interactions

Yersin, Hartmut ; Riedl, U.


Abstract

Emission properties of dicyanoaurates(I) and tetracyanoplatinates(II) are investigated under high hydrostatic pressure up to ca. 20 kbar and ca. 40 kbar, respectively, at T = 295 K. One observes pressure-induced red shifts of the emission energies, which are the largest values known for solid state compounds: Δν/Δp (cm⁻¹/kbar) = -120 (Cs₂Na[Au(CN)₂]₃); -150 (Cs[Au(CN)₂]); -200 (K[Au(CN)₂]); -300 ...

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