Catechol on TiO2(110)

The catechol molecules on the rutile TiO2(110) surface appear orange in this STM image; hydroxyls are bright blue bumps. See: S-C. Li, L.-N. Chu, X.-Q. Gong, U. Diebold, Hydrogen bonding controls the dynamics of catechol adsorbed on a TiO2(110) surface. Science 328 (2010) 882-884