Pressure Effect on the Optical Spectra of Some One-Dimensional Pt-Complexes

• Yoji Hara

  The Institute for Solid State Physics, The University of Tokyo

• Ichimin Shirotani

  The Institute for Solid State Physics, The University of Tokyo

• Yukako Ohashi

  The Institute for Solid State Physics, The University of Tokyo

• Katsuyuki Asaumi

  The Institute for Solid State Physics, The University of Tokyo

• Shigeru Minomura

  The Institute for Solid State Physics, The University of Tokyo

抄録

The absorption and luminescence spectra of the polycrystalline magnesium, barium, and potassium salts of tetracyano platinate (II) were measured at hydrostatic pressures up to 5.4 kbar. These three salts showed an anomalously large red shift with pressure in both the absorption and luminescence spectra. The X-ray powder diffraction measurement was carried out for the magnesium salt up to 70 kbar. At 70 kbar the Pt–Pt distance decreased from 3.16 Å to 2.93 Å, 7.3% in linear compressibility. In the low pressure region up to ∼20 kbar, the Pt–Pt distance was observed to decrease greatly. The intramolecular transition 5dz2→6pz energy was calculated as a function of the Pt–Pt distance. By comparing the calculated and observed values, such a large red shift in the absorption spectra was tentatively explained in terms of electrostatic stabilization of the intramolecular transition 5dz2→6pz due to the decrease of the intermolecular distance and due to the consequent increase of the 5dz2→6pz intermolecular CT character.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 48 (2), 403-407, 1975-02-01

  Oxford University Press (OUP)

キーワード

• General Chemistry

詳細情報

• CRID: 1360565169053828736
• NII論文ID: 130001972579
• DOI: 10.1246/bcsj.48.403
• ISSN: 13480634
• ISSN: 00092673
• Web Site: https://academic.oup.com/bcsj/article-pdf/48/2/403/56093349/bcsj.48.403.pdf
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