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Heterocyclic Azole Nonlinear Optical Chromophores .1. Donor-Acceptor Substituted Pyrazole Derivatives

Miller, Robert D. ; Moylan, Christopher R. ; Reiser, Oliver ; Walsh, Cecilia A.


We have described the synthesis of a variety of 1,3,1,4, and 1,5 donor-acceptor conjugation extended substituted pyrazole derivatives and have studied their spectr6scopic and nonlinear optical properties. These materials are thermally stable and absorb strongly in the UV-visible region, albeit at much shorter wavelengths than comparably substituted cyclic azapolyenes such as 2-pyrazolines. ...


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