| http://www.w3.org/ns/prov#value | - The light emitting device of claim 47 wherein the electron withdrawing groups are selected from halogens, CN, CF3, CnF2n+1, trifluorovinyl, NO2, CO2R, C(O)R, S(O)R, SO2R, SO3R, P(O)R, PO2R, PO3R, or C???CR, aryl or heteroaryl groups substituted with halogens, CN, CF3, CnF2n+1, trifluorovinyl, NO2, CO2R, C(O)R, S(O)R, SO2R, SO3R, P(O)R, PO2R, or PO3R, where R is a hydrogen, alkyl, aryl or heteroary
|
