Optical Distyrylbenzenes

Model Polymers with Distyrylbenzene Segments for Third-Order Nonlinear Optical Properties... 

The (Z)-stilbene (6) does not form a rotaxane with dibenzo-24-crown-8 but, when the stilbene is isomerized (sensitized by benzil) to the E form, a pseudo-rotaxane is formed.Lewis and Crompton have reported that the photoacidity of the stilbene derivatives (7) and (8) is dependent on the position of the hydroxy group on the stilbene, and as a consequence the meta derivative undergoes isomerism.The influence of the nitrogen atoms on the photochemistry of the 1,4-distyrylbenzene analogue (9) and related compounds has been assessed. The photophysics and conformational analysis of the stilbene dimer (10) have been studied. Modelling of the optical properties of the stilbenophane (11) has been reported. 

T. E. Mates and C. K. Ober, Model polymers with distyrylbenzene segments for third-order nonlinear optical properties, in Materials for Nonlinear Optics (S. R. Marder, J. E. Sohn, and G. D. Stucky, eds.), ACS Symp. Ser. 455, Am. Chem. Soc., Washington. DC, 1991, pp. 497-513. 

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