The fabrication of layers of copper sulphide within multilayers of copper complexes of the amphiphile 4- 10,12-pentacosadiynamido Ž
methyl pyridine, by diffusion of H S into the multilayers, was studied by UV–VIS spectroscopy. XPS measurements revealed that . 2
copper sulphides can be synthesised which differ in stoichiometry when multilayers are used, which were built up from different
subphases CuCl or Cu ClO . The distinct layer pattern of the Langmuir–Blodgett LB films is preserved during the formation of the Ž Ž .. Ž . 2 42
copper sulphide layers and the bilayer distance increases slightly by about 1.8 A for the multilayers built up from a 5 mM CuCl ˚ 2
subphase, whereas for the multilayers built up from a 5 mM Cu ClO subphase the bilayer distance decreases a little by about 0.6 A Ž . ˚ 4 2
after the formation of copper sulphide inside these LB films. After polymerisation the multilayer structure is destroyed in the case of LB
films built up from the CuCl subphase, whereas the layer structure is preserved during the polymerisation process in the case of 2
multilayers built up from a 5 mM Cu ClO subphase. Ž . q 1998 Elsevier Science S.A. All rights reserved