TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): Preparation of (I) comprises cyclizing fused pentacyclyl compounds of formula (II) (in which X3-containing ring or X4-containing ring is introduced at both terminal ends of a thieno(3,2-b)thiophene positioned in the center) to give (IA).Y1 = -C(=O)R8; andY2 = -C(=O)R9, where R8 and R9 is as above per se or halo (e.g. -Br).Preferred Components: (I) have average molecular weight of 350-3000. Preferred Definitions:    R1-R6 (that is not linked to provide the aromatic ring, the heteroaromatic ring or the alicyclic ring fused with the X3-containing ring or the X4-containing ring) = 10-30C alkyl or 10-30C alkenyl (both optionally substituted); and    X1-X4 = S.    SPECIFIC COMPOUNDS - 10 Compounds (I) are disclosed e.g. 5,15,20,30-tetrathiaoctacyclo(14.14.0.0(2,14).0(4,12).0(6,11).0(17,29).0(19,27).0(21,26))triaconta-1(16),2(14),3,6(11),7,9,12,17(29),18,21(26),22,24,27-tridecaene of formula (III), 16,21,31-trithiaoctacyclo(15.14.0.0(2,15).0(4,13).0(6,11).0(18,30).0(20,28).0(22,27))hentriaconta-1(17),2(15),3,5,7,9,11,13,18(30),19,22(27),23,25,28-tetradecaene, 11,15,26,30-tetrathiaoctacyclo(14.14.0.0(2,14).0(4,12).0(5,10).0(17,29).0(19,27).0(20,25))triaconta-1(16),2(14),3,5(10),6,8,12,17(29),18,20(25),21,23,27-tridecaene, 5,9,14,19,23,28-hexathiaoctacyclo(13.13.0.0(2,13).0(4,11).0(6,10).0(16,27).0(18,25).0(20,24))octacosa-1(15),2(13),3,6(10),7,11,16(27),17,20(24),21,25-undecaene, and 6,10,14,20,24,28-hexathiaoctacyclo(13.13.0.0(2,13).0(4,11).0(5,9).0(16,27).0(18,25).0(19,23))octacosa-1(15),2(13),3,5(9),7,11,16(27),17,19(23),21,25-undecaene.    EXAMPLE - 4 mmol Tert-butyllithium was dissolved in 50 ml tetrahydrofuran (THF) and cooled to -78 degrees C. 0.6 g 2-Bromo-3-((5-((2-bromo-1-benzothien-3-yl)methyl)thieno(3,2-b)thien-2-yl)methyl)-1-benzothiophene dissolved in 100 ml THF was slowly added in a dropwise fashion. The resultant was agitated at -78 degrees C for 1 hour, and 1 ml dimethylformamide was added followed by agitation for 1 hour. Water was poured to terminate a reaction and then 100 ml ethyl acetate was added. The resultant was washed with water and brine, and an organic layer was dried with magnesium sulfate followed by concentration in a reduced pressure to obtain colorless oil. The colorless oil was purified by using a silica chromatography to obtain 3-((5-((2-formyl-1-benzothien-3-yl)methyl)thieno(3,2-b)thien-2-yl)methyl)-1-benzothiophene-2-carbaldehyde. 0.4 g 3-((5-((2-Formyl-1-benzothien-3-yl)methyl)thieno(3,2-b)thien-2-yl)methyl)-1-benzothiophene-2-carbaldehyde was dissolved in 30 ml benzene, and 0.5 g Amberlyst 15 (RTM: Sulfonic acid based polystyrene cation exchange resin) was added. The resulting mixture was agitated while refluxing and water was removed using Dean-Stark trap. After 24 hours, a yellow solid was precipitated. A temperature was lowered to room temperature and Amberlyst 15 (RTM: Sulfonic acid based polystyrene cation exchange resin) was precipitated. Floating materials were removed followed by filtering to 5,15,20,30-tetrathiaoctacyclo(14.14.0.0(2,14).0(4,12).0(6,11).0(17,29).0(19,27).0(21,26))triaconta-1(16),2(14),3,6(11),7,9,12,17(29),18,21(26),22,24,27-tridecaene (yield: 50%).