1987 Volume 56 Issue 11 Pages 3808-3811
The intervalence charge-transfer absorption spectra in the mixed-valence complexes [Pt(en)2][PtI2(en)2](SO4)2·6H2O and [AuxPt1−xI(en)2]SO4·3H2O (x=0.03) have been investigated at 4.2 K. In these complexes, below the charge-transfer absorption edge, a weak absorption band (A-band) has been observed for the light polarized parallel to the chain axis. When these complexes were irradiated with the light in the region of the charge-transfer transition from PtII to PtIV, the absorption coefficient of the A-band increased remarkably, which implies that the A-band is a photo-induced absorption band. The photo-induced effect for the A-band in [AuxPt1−xI(en)2]SO4·3H2O (x=0.03) is more intense than that in [Pt(en)2][PtI2(en)2](SO4)2·6H2O. The A-band suggests the existence of new excitations such as a soliton-like excitation in the electronic state of the platinum chains.
This article cannot obtain the latest cited-by information.
Proceedings of the Physico-Mathematical Society of Japan. 3rd Series
Proceedings of the Tokyo Mathematico-Physical Society. 2nd Series
Tokyo Sugaku-Butsurigakukwai Kiji-Gaiyo
Tokyo Sugaku-Butsurigakkwai Hokoku
Tokyo Sugaku-Butsurigaku Kwai Kiji
