TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The electronic device further comprises a transistor including an active layer formed (I) in a channel region.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No preparation method is given.Preferred Components: (I) has an average molecular weight of 350-3000. Preferred Definitions:    One of X1 and X2, one of X3 and X4 = S;    atom of X1 and X4, X2 and X3 = positioned symmetrically to each other; and    Ar1 = benzenyl, naphthalenyl or anthracenyl (all optionally substituted).    SPECIFIC COMPOUNDS - 12 Compounds (I) are disclosed e.g. 9,13,22,26-tetrathiaheptacyclo(14.10.0.0.0.0.0.0)hexacosa-1,3(14),4(12),5,7,10,15,17(25),18,20,23-undecaene of formula (Ia), 7,13,22,26-tetrathiaheptacyclo(14.10.0.0.0.0.0.0)hexacosa-1,3(14),4(12),5,8,10,15,17(25),18,20,23-undecaene, 7,13,22,28-tetrathiaoctacyclo(14.14.0.0.0.0.0.0.0)triaconta-1,3(14),4,6(10),8,11,15,17,19,21(25),23,26,29-tridecaen, 9,13,24,28-tetrathiaoctacyclo(14.14.0.0.0.0.0.0.0)triaconta-1,3(14),4,6(10),7,11,15,17,19,21(25),22,26,29-tridecaene and 3,7,18,22-tetrathiaoctacyclo(14.14.0.0.0.0.0.0.0)triaconta-1(16),2(13),4(12),5,8,10,14,17(28),19(27),20,23,25,29-tridecaene.    EXAMPLE - 5.29 g Of benzodithiophene was dissolved in 100 ml of dry tetrahydrofuran, the obtained solution was added to 100 ml of anhydrous diethyl ether solution including 25 ml of butyl lithium cooled at 0 degrees C in a dropwise fashion, temperature was increased slowly and the obtained mixture was agitated fro 2 hours. 12 g Of 3-bromo-thieno(3,2:b)thiophene-2-aldehyde was added to the turbid solution in a dropwise fashion and was agitated overnight. 100 ml Of an ammonium chloride saturated aqueous solution was added, precipitated materials were filtered and the obtained was washed with water and diethyl ether to obtain (3-bromothiophen-2-yl)-(6-((3-bromothiophen-2-yl)hydroxymethyl)benzo(1,2-b;4,5-b')dithiophen-2-yl)methanol (Q1). 4.66 g Of (Q1) was dissolved in 400 ml of dichloromethane and 8.3 g of zinc iodide and 7.2 g of sodium cyano borohydride were slowly added. The obtained mixture was agitated for 24 hours, and then passed through celite pad. The filtered resultant was washed with ammonium chloride saturated solution and water, respectively, dried with magnesium sulfate and concentrated under reduced pressure to obtain yellow oil. The yellow oil was purified to obtain 2,6-bis-(3-bromothiophen-2-ylmethyl)benzo(1,2-b;4,5-b')dithiophene (Q2). 50 ml Of tetrahydrofuran solution including 1.4 g of (Q2) dissolved in it was added to a 50 ml tetrahydrofuran solution including 1.7M 4.5 ml of tert-butyl lithium cooled to -78 degrees C for 30 minutes and 1 ml of dimethylforamide was added followed by agitating for 1 hour. Water was poured to complete a reaction. 100 ml Of ethyl acetate was added, the obtained mixture was washed with water and brine and an organic layer was dried with magnesium sulfate and concentrated under reduced pressure to obtain colorless oil. The colorless oil was purified to give 2,6-bis-(3-carbaldehydethiophen-2-ylmethyl)-benzo(1,2-b;4,5-b')dithiophene (Q3). 0.35 g Of (Q3) was dissolved in 30 ml of benzene, 0.5 g of Amberlyst 15 (RTM: Ethenyl-benzenesulfonicacid polymer with diethenylbenzene) was added, the mixture was agitated while refluxing and water was removed using a Dean-Stark trap. After 24 hours, a yellow solid was precipitated. Then the temperature was decreased to room temperature. Amberlyst 15 (RTM: Ethenyl-benzenesulfonicacid polymer with diethenylbenzene) was precipitated, suspended materials were removed using a filter to obtain 60% of 9,13,22,26-tetrathiaheptacyclo(14.10.0.0.0.0.0.0)hexacosa-1,3(14),4(12),5,7,10,15,17(25),18,20,23-undecaene.