The quasistable state in the photoinduced phase transition for the quasi-one-dimensional quarter-filled organic conductor $(\mathrm{EDO}\mathrm{\text{−}}\mathrm{TTF}{)}_2{\mathrm{PF}}_6$ has been examined by ultrafast reflective measurements and time-dependent model calculations incorporating both electron-electron and electron-phonon interactions. The transient optical conductivity spectrum over a wide probe photon-energy range revealed that photoexcitation induced a new type of charge-disproportionate state. Additionally, coherent and incoherent oscillations dependent on probe photon energies were found, as predicted by the calculation.

Radical anion salts of metal phthalocyanines (M = Cu ^II , Pb ^II , V ^IV O and Sn ^IV Cl ₂ ) with the {cryptand(Na ⁺ )} cations have been obtained and studied.