Abstract
The flat Pt(Thpy) 2 complex, where Thpy is 2-(2-thienyl)-2-pyridine, forms a compressible LB film on the surface of pure water when it is mixed with stearic acid. The pressure-area isotherm of a mixture of Pt(Thpy) 2 stearic acid shows two plateaus in the solid phase region that corresponds to a horizontal and a vertical orientation of the Pt(Thpy) 2 molecules in the LB film on the surface of water. The areas calculated per molecule at the two orientations are (57 ± 2)Å 2 and (25 ± 1)Å 2. The Uv-vis absorption of the LB film of Pt(Thpy) 2/stearic acid mixture indicates that the Pt complex molecules disperse homogeneously between the stearic acid molecule in the film. The emission of the multilayer LB film of Pt(Thpy) 2/stearic acid shows a maximum at λ = 566 nm. Solution emission and lifetime decay data are also presented.
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