Abstract: A hexacene derivative is described, being expressed by formula (1): wherein X1-X6 denote the presence or absence of a carbonyl bridge [—C(?O)—], with a proviso that at least one of X1-X6 is a carbonyl bridge while any six-member ring absent of a carbonyl bridge is aromatic. A method for forming hexacene is also described, including: thermally treating the hexacene derivative to expel volatile units of CO from the hexacene derivative.

Abstract: The present invention discloses a self-assembled monolayer with a general formula G1-R-G2, wherein G1 is SH. R of the mentioned general formula comprises one or any combination selected from the group consisting of the following: unsubstituted linear, branched, or cyclic alkyl moiety; single or multi-substituted linear, branched, or cyclic alkyl moiety with substituent selected from the group consisting of alkene and alkyne; aromatic group; multiple fused ring group; and multiple fused ring group with heteroatoms. G2 is an electron-withdrawing group.

Abstract: A series of Pt(II) complexes having the following formula are disclosed: X1 and X2 independently are C or N, X1 can also locate at another position of the hexagonal ring, when X1 is N; R1 is H, C1–C8 alkyl, or C1–C4 perfluoroalkyl, R2 is H, R1 and R2 together are C4–C8 alkylene, or R1 and R2 together are bridged carbocyclic C4–C12 alkylene, when X2 is C; R1 is H, C1–C8 alkyl, or C1–C4 perfluoroalkyl, and R2 is omitted, when X2 is N; R7 is H or methyl, and R8 is omitted, when X1 is N; R7 is H or methyl, R8 is H or methyl, or R7 and R8 together are when X1 is C.

Abstract: This invention features a dipyrazolo-pyridine compound of formula (I): each of R1, R2, R3, and R4, independently, is H, alkyl, alkenyl, cycloalkyl, aryl, or heteroaryl; and each of R5 and R6, independently, is aryl or heteroaryl, or R5 and R6, together with the N atom they are attached to, are heteroaryl. The dipyrazolo-pyridine compound can be used in an electro-luminescence device.

Abstract: The present invention features substituted carbazole compounds of formula (I): Each of Z1 and Z2, independently, is each of A1 and A2, independently, is S, O, NR, or CH═CH; each of Y1 and Y2, independently, is aryl or heteroaryl; each of R1-R5, independently, is aryl or heteroaryl; and each of R6-R11, independently, is H, CN, alkyl, OR, NRR′, COR, or C(O)OR; and each of R and R′, independently, is H or alkyl. The compounds are useful as hole-transporting, light-emitting molecules with high glass transition temperatures.

Abstract: This invention features a dipyrazolo-pyridine compound of formula (I): 1

Abstract: A method of preparing a compound of formula I is described. In this compound, each of R1-R6 is, independently, in which Y is O, S, NH, or C(R7)═C(R8). Each of R7-R11 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C26 alkenyl, substituted or unsubstituted C2-6 alkynyl, substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl. Alternatively, each of R7-R11 is OH, C1-6 alkoxy, or N(R12)(R13), in which each of R12 and R13 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C2-6 alkenyl, substituted or unsubstituted C2-6 alkynyl, or substituted or unsubstituted C6-20 aryl. Each of R7-R11 can also be NO2, CN, or CO2R14, in which R14 is H or C1-6 alkyl.

Abstract: This invention relates to fluorene compounds and their use as a hole transport material in an electro-luminescence device.

Abstract: A method of preparing a compound of formula I is described.

Abstract: A method of preparing a compound of formula I is described. In this compound, each of R1-R6 is, independently, in which Y is O, S, NH, or C(R7)═C(R8). Each of R7-R11 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C2-6 alkenyl, substituted or unsubstituted C2-6 alkynyl, substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl. Alternatively, each of R7-R11 is OH, C1-6 alkoxy, or N(R12)(R13), in which each of R12 and R13 is, independently, H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C2-6 alkenyl, substituted or unsubstituted C2-6 alkynyl, or substituted or unsubstituted C6-20 aryl. Each of R7-R11 can also be NO2, CN, or CO2R14, in which R14 is H or C1-6 alkyl.

Abstract: This invention relates to fluorene compounds and their use as a hole transport material in an electro-luminescence device.

Abstract: A method of preparing a compound of formula I is described.

Abstract: The present invention features substituted carbazole compounds of formula (I): 1