Unusual fine structure of ν5 vibronic band in absorbance of conducting TCNQ LB films obtained by the “homodoping” strategy

Abstract Experimental IR properties of conducting (ODS-TCNQ) 0,33 (TCNQC 18 ) 0,66 .LB films are presented and discussed within the frame of the electron-vibration coupling model of Rice, extended to take into account the modifications induced by grafting an alkyl chain to TCNQ molecule. Quite good theoretical fit of experimental spectra (including unusual fine structure of a g ν 5 vibronic band) indicates that, inside the layer, an energy transfer takes place between the electroactive part and the alkyl chain via a two step coupling process.