Sugihara, Minoru; Meyer, Hendrik; Entel, Peter; Sakamoto, Yoshifumi; Hafner, Jürgen; Buss, Volker:

Ab initio molecular-dynamics simulations of adsorption of dye molecules at surfaces

In: International Symposium on Structure and Dynamics of Heterogeneous Systems: from atoms, molecules and clusters in complex environment to thin films and multilayers ; Duisburg, Germany, 24 - 26 February 1999 / Entel, Peter; Wolf, Dietrich (Hrsg.)
Singapore (u.a.): World Scientific (2000), S. 36-43
ISBN: 981-02-4251-4
Buchaufsatz / Kapitel / Fach: Physik
We present results of ab initio total energy calcns. and mol.-dynamics simulations of dye mols. on the NaCl(100) surface. The investigations conc. on the flat dye mols. 3,3'-dimethyloxacarbocyanine, [C19H17N2O2]+, which form sandwich-like structures if closely packed, and the cyanine mol. bis(1,3,3-trimethyl-2-indolinyl)monomethinium, [C21H23N2]+, which shows a typical stereochem. deformation due to two repulsive Me groups. The mol.-dynamics simulations are able to reproduce the exptl. obsd. configurations of the charged dye mols. on surfaces.