Structures of Thin Films of Tertiary-Phenyl-Porphyrin Derivatives of Gold Surface

T. Terui, S. Yokoyama, H. Suzuki, S. Mashiko, M. Sakurai, T. Moriwaki

We conducted research on controlling arrays of functional organic molecules from the viewpoint of self-assembly. Molecular thin films were fabricated and their structures were examined by using a Scanning Tunneling Microscope (STM). Molecules used in the experiments are derivatives of porphyrin. Tertiary-butyl-phenyl-porphyrin (TBPP) and tertiary-butyl-phenyl-porphyrin-CN (TBPP-CN) were mainly used. STM images of the molecular arrays of TBPP and TBPP-CN appeared quite different. Infrared Reflection Absorption Spectroscpopy (IRAS) spectra of bulky structures were obtained.