Substituted [6]helicene compounds that show enhanced nonlinear o

Compositions – Light transmission modifying compositions

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252585, 25229962, 568326, 568329, 568633, F21V 900, F21V 914, C09K 1932, C07C 4100

Patent

active

060174706

ABSTRACT:
This invention provides a compound having the structure: ##STR1## wherein rings A and B represent independent electron accepting ring systems and wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are the same or different and are H, substituted or unsubstituted, saturated or unsaturated alkyl, alkenyl, cycloalkyl, aryl, or arylalkyl, --SR, --NRR', --OR, --OC(O)R, SC(O)R, --SCR, wherein R and R' are independently substituted or unsubstituted, saturated or unsaturated alkyl, alkenyl, cycloalkyl, aryl, or arylalkyl.
This invention also provides thin films comprising a compound having the above structure or suitable derivatives thereof.
This invention further provides liquid crystal display devices and non-linear optical devises comprising a compound having the above structure or a suitable derivative thereof.
Finally, this invention provides a method for achieving a high order non-linear electrooptical response comprising contacting a suitable sample of the inventive compound or a derivative thereof with an appropriate light source.

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