Photophysical and photochemical properties of an amphiphilic rhenium complex at air/water interface, LB films and its surface morphology

We reported that the irradiation to a novel amphiphilic rhenium (I) complex resulted to the photoisomerization of ligand 4'-nitrostilbazole that coord inated to the complex in solution and at air/water interface. pi -a isother ms and FT-IR spectra demonstrated that the photoisomerization of the comple x would lead to small change of area per molecule and stacking of molecules became more orderly than those without photo isomerization. The electronic spectra proved that the photoisomerization had influence to the metal to l igand charge transfer (MLCT) transition of the complex, and atomic force mi croscopy (AFM) measurement showed the aggregate formation on the surface af ter irradiation to the complex. (C) 2001 Elsevier Science B.V. All rights r eserved.