SYNTHESIS, CHARACTERIZATION, AND 2ND-HARMONIC GENERATION STUDIES OF SURFACTANT RHENIUM(I) DIIMINE COMPLEXES IN LANGMUIR-BLODGETT-FILMS - X-RAY CRYSTAL-STRUCTURE OF FAC-CLRE(CO)(3)L (L = 9-HEPTYLAMINO-4,5-DIAZAFLUORENE)

A series of surfactant complexes of general formula, fac-ClRe(CO)(3)L (L = 9-octadecylamino-4,5- diazafluorene, 9-(4'-hexadecylanilino)-4,5- diazafluorene, N-(4'-hexadecylphenyl)pyridine-2-carbaldimine, and 9-he ptylamino-4,5-diazafluorene), were synthesized and characterized by el emental analyses and H-1 NMR, UV-vis, IR, and luminescence spectroscop y. The complex fac-ClRe(CO)(3)L (L = 9-heptylamino-4,5-diazafluorene) was structurally characterized. The formation and optical properties o f their Langmuir-Blodgett (LB) films were studied by surface pressure- area (pi-A) isotherms and UV-vis and luminescence spectroscopy, and th e second-harmonic generation (SHG) behavior was also investigated.