Abstract: Abstract The absorption spectra of [Pt(en)2][Pt(en)2Cl2](ClO4)4, [Pt(en)2][Pt(en)2I2](ClO4)4, [Pd(en)2][Pd(en)2Br2](ClO4)4 and Wolffram's red salt, and the reflectance spectra of [Pt(en)2][Pt(en)2Cl2](ClO4)4 and [Pt(en)2][Pt(en)2I2](ClO4)4, have been measured for polarized light both at room temperature and at 2 K. The charge-transfer absorption edges and their temperature dependence have been clearly determined, and the structures observed in the spectra are discussed within the one-dimensional band scheme. Interesting structures located below...
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Topics: 
Crystallography