TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - No general preparation given. Preferred Composition: The high molecular compound further consists of repeating unit of formula: -Ar'4- (II).Ar'4=arylene or bivalent heterocyclyl. Preferred Definitions:    -(X)n-=-O-, -S-, -Se-, -C(=O)-, -C(=S)- or -S(=O)-;and    halo=fluoro.    SPECIFIC COMPOUNDS - 104 high molecular compounds are disclosed e.g. 9,9-difluoro-2,7-dimethyl-9H-fluorene (Ia), 2,7-dimethyl-9,9-bis-(4-propyl-phenyl)-9H-fluorene, 2,7-dimethyl-9,9-bis(4,4,4-trifluorobutyl)-9H-fluorene, 9-chloro-2,7-dimethyl-9-(tribromomethyl)-9H-fluorene, and 3,7-dimethyl-5-(4-(trifluoromethyl)phenyl)-5H-5-l5-benzo(b)phosphindol-5-one.    EXAMPLE - 198 g Tributyl(4-(tributylstannyl)-8,8-bis(4,4,4-trifluorobutyl)-7-oxa-3,12-dithiatricyclo(7.3.0.02,6)dodeca-1(9),2(6),4,10-tetraen-11-yl)stannane, 108 g 1,3-dibromo-6-hexyl-7-methyl-4H,9H-naphtho(2,3-c)thiophene-4,9-dione, 5.5 mg tris(2-tolyl)phosphine and 16 ml dehydrated toluene were reacted in 100 ml reactor substituted with argon gas, and a homogeneous solution was obtained. The obtained toluene solution was bubbled with argon for 30 minutes, and 2.7 mg tris(dibenzylidene acetone)dipalladium was added to the toluene solution, and stirred at 105 degrees C for 3 hours, and at 120 degrees C or more for 3 hours. 370 mg Phenyl bromide was added to the reaction liquid, and stirred for 2 hours. The reaction solution was cooled to room temperature and the reaction liquid was poured into the mixed solution of 200 ml methanol and 20 ml concentrated hydrochloric acid. The polymer obtained by filtering and recovering the precipitate was put into the extraction thimble, and washed by methanol, acetone, and hexane for 3 hours using Soxhlet extractor, respectively. The polymer which remained in the extraction thimble was dissolved in 8 ml o-dichlorobenzene, and 0.17 g sodium diethyl dithiocarbamate and 2 ml water were added to resultant product and stirred at 90 degrees C for 3 hours. The organic layer was washed for 2 times with 50 ml water, 50 ml acetic acid aqueous solution, and 50 ml water, respectively. The obtained solution was poured into methanol and the polymer was deposited. The polymer obtained by drying after filtering the polymer was again dissolved in 8 ml o-dichlorobenzene, and passed it through alumina/silica gel column. The obtained solution was poured into methanol and the polymer was deposited, filtered and dried, and 83 mg purified 6,7-dihexyl-1-methyl-3-(4-methyl-8,8-bis(4,4,4-trifluorobutyl)-7-oxa-3,12-dithiatricyclo(7.3.0.02,6)dodeca-1(9),2(6),4,10-tetraen-11-yl)-4H,9H-naphtho(2,3-c)thiophene-4,9-dione; trifluoromethane (Ia1) was obtained.