Intermolecular bond length of ice on Ag(111).
Water adsorbed in submonolayer coverage on Ag(111) at 70 K forms hydrogen-bonded networks. High resolution images in combination with calculation reveal that single protrusions represent a cyclic water hexamer with the intermolecular bond stretched to the silver lattice constant of 0.29 nm. Scanning tunneling spectroscopy indicates that the bond length within the two-dimensional hydrogen-bonded water layer is shortened. The spectra contain further information about the vibrational modes of water molecules.
Morgenstern
Karina
K
Institut für Experimentalphysik, FB Physik, FU Berlin, Arnimallee 14, D-14195 Berlin, Germany.
Nieminen
Jouko
J