Author/Authors :
Yamashita، نويسنده , , M. and Miya، نويسنده , , S. and Kawashima، نويسنده , , T. and Manabe، نويسنده , , T. and Sonoyama، نويسنده , , T. and Kitagawa، نويسنده , , H. and Mitani، نويسنده , , T.، نويسنده ,
Abstract :
A series of quasi-one-dimensional I-bridged binuclear platinum compounds, R4[Pt2(pop)4I].nH2O (R=Li, Na, K, NH4, Rb, Cs etc.: pop=P2O5H2) have been synthesized. Resonance Raman spectra revealed that the compounds with Li and Na take -Pt2.5+-Pt2.5+-I-Pt2.5+-Pt2.5+-(a) while the compounds with Rb and Cs take …Pt2+-Pt2+…I-Pt3+-Pt3+-I.(b). Interestingly, the compound with NH4 shows the phase transition between (a) at room temperature and (b) at 10K.