Stable free radical chromophores, processes for preparing the same, nonlinear optic materials and uses thereof in nonlinear optical applications
AssigneeLightwave Logic, Inc.
InventorsFrederick J. Goetz, JR., Andrew Ashton, Frederick J. Goetz, SR., David F. Eaton, Anthony J. Arduengo, III, Howard E. Simmons, III, Jason W. Runyon
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Abstract
Nonlinear optic chromophores comprising stabilized radical structures, mixtures thereof, methods for their production, nonlinear optical materials containing such chromophores, and the use of such materials in electro-optic, solar conversion, photovoltaic and all-optical nonlinear devices are described.
Claims20
A nonlinear optic chromophore comprising a stabilized radical of the general formula (I):
- wherein D represents an organic electron donating group;
- A represents an organic electron accepting group having an electron affinity greater than the electron affinity of D;
- and H represents a fused, offset, polycyclic, optionally heteroatom-containing, pi-conjugated core;
- wherein A is bound to the core at two atomic positions on the core such that at least a portion of A forms a ring fused to the core, wherein D is bound to the core at two atomic positions on the core other than the two atomic positions at which A is bound to the core such that at least a portion of D forms a ring fused to the core;
- and wherein the stabilized radical is optionally substituted with one or more pendant spacer groups.
A nonlinear optic chromophore comprising a stabilized radical of the general formula
- wherein each R independently represents a pendant spacer group and each Acc represents an electron accepting group.
A nonlinear optic chromophore comprising a stabilized radical of the general formula
- wherein each R independently represents a pendant spacer group and each Acc represents an electron accepting group.
A nonlinear optic chromophore comprising a stabilized radical of the general formula
- wherein each R independently represents a pendant spacer group and each Acc represents an electron accepting group.
A nonlinear optical chromophore composition comprising a mixture of two or more stabilized radicals selected from the group consisting selected from radicals of the general formula (I′), nitro radicals of the general formula (Ia) and a nitroxyl radicals of the general formula (Ib):
- wherein each R independently represents a pendant spacer group and each Acc represents an electron accepting group.
Dependencies are inferred from the claim text.