Electronic structure of disjoint diradical 4,4'-bis(1,2,3,5-dithiadiazolyl) thin films.
The electronic structure of the thiazyl diradical, 4,4'-bis(1,2,3,5-dithiadiazolyl) (BDTDA), has been investigated by ultraviolet photoemission spectroscopy. Stacked BDTDA dimers showed an energy band dispersion of about 0.3 eV for the highest occupied molecular orbital in the direction of the surface normal of the BDTDA solid film. The pi-orbital overlap between the stacked dimers therefore evolves into a quasi one-dimensional energy band along the dimer stacking direction.
Kanai
Kaname
K
Research Core for Interdisciplinary Sciences, Okayama University, 3-1-1 Tsushima-naka, Okayama 700-8530, Japan. kaname@cc.okayama-u.ac.jp
Yoshida
Hiroyuki
H
Noda
Yukiko
Y
Iwasaki
Akito
A
Suizu
Rie
R
Tsutumi
Jun'ya
J
Imabayashi
Hiroki
H
Ouchi
Yukio
Y
Sato
Naoki
N
Seki
Kazuhiko
K
Awaga
Kunio
K