Abstract

In former investigations of quinizarin (Q) adsorbed on the surface of γ-alumina , the glasslike character of this system could be demonstrated [1,2,3]. Also, a binding model has been assumed, which is in accordance to a well known condensation reaction between surface hydroxyl (OH)groups and the OH groups of Q, leading to a stable adsorbate complex[1]. The temperature dependence of the Debye-Waller factor was found to be determined by one dominant low-frequency mode of the chromophore environment. This frequency corresponds to the spectral distance between the peak of the zero-phonon-hole(ZP) and the phonon sideband-hole (PS).

© 1992 Optical Society of America