Abstract
The emission spectra of single crystal Ba[Pt(CN)₄]•4H₂O were measured from 0 to 23 kbar for the two electronic transitions which are polarized with E parallel c and E perpendicular C. They exhibit a red-shift of -280 cm⁻¹/kbar and -195 cm⁻¹/kbar, respectively. The red-shift is explained by a pressure induced reduction of the intermolecular separation R in the direction of the linear chain ...
Abstract
The emission spectra of single crystal Ba[Pt(CN)₄]•4H₂O were measured from 0 to 23 kbar for the two electronic transitions which are polarized with E parallel c and E perpendicular C. They exhibit a red-shift of -280 cm⁻¹/kbar and -195 cm⁻¹/kbar, respectively. The red-shift is explained by a pressure induced reduction of the intermolecular separation R in the direction of the linear chain (c-axis). The emission energies obtained at different pressures are compared with the results under normal conditions for various Me[Pt(CN)₄]•xH₂O salts (with different R). The close analogy between these two methods of R-reduction supports the importance of one-dimensional interaction for the interpretation of electronic properties of the tetracyano-platinates. Ba[Pt(CN)₄]•4H₂O shows a structural transition region in the pressure range studied here.
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