Palladium poly-ynes

Porter, P.L., Guha, S., Kang, K. and Frazier, C.C., "Structural dependence of platinum and palladium poly-ynes on third-order nonlinearity," Polymer 32 1756 (1991). 

Metal-containing conjugated polymers have been prepared, but there have been very few optical measurements. Palladium poly-ynes with a molecular weight of 32 000 have been loaded into polyimide, and power-limiting and direct ri2 measurements made [134] (Fig. 4.23). 

In the 1970s, Hagihara and coworkers reported the synthesis of oligomeric and polymeric poly(metal acetylides), also called poly-ynes. containing transition metals in the main chain. ] Conjugated poly-ynes containing platinum or palladiuin complexes in their backbones were prepared by polycondensation of a metal chloride and an acetylene monomer in the presence of Cul. Platinum and palladium... 

Transition metal poly-ynes have large third-order optical susceptibilities (X ) which consist of contributions from the real and imaginary parts of the third-order hyperpolarizabilities (y and y", respectively). In previous studies, various optical measurements were used to determine the nonlinear hyper-polarizabilities of the polymers.Most recently, an extensive study of the structural dependence of the hyperpolarizabilities of the platinum and palladium... 

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