Abstract: A charge transporting material, a light emitting material and an organic electroluminescent device having high efficiency using a specified diazapentacene derivative represented by the following general formula (1): (in the general formula (1), R1 to R10 each represents independently a hydrogen atom, a halogen atom, an alkyl group of 1 to 6 carbon atoms, an alkoxy group, a substituted or not-substituted amino group, an aryl group or a heterocyclic group, in which the substituted or not-substituted aryl group or heterocyclic group, when they are adjacent with each other, may be of a structure condensed to each other, X1 and X2 each represents independently an oxygen atom or a sulfur atom, and Y1 and Y2 each represents independently a substituted or not-substituted alkyl group of 1 to 6 carbon atoms, an aryl group or a heterocyclic group).

Abstract: The present invention provides a charge transporting material, a light emitting material and an organic electroluminescent device at high efficiency using a specified diazapentacene derivative represented by the following general formula (1): 1

Abstract: The present invention is a design paradigm for molecular scale electronic systems wherein electronic information is transmitted and processed, and electronic logic is obtained by changing the electrostatic potential of a molecule. The signal may be restored using an external potential through the underlying substrate. Several convergent synthetic routes are shown to conjugated molecules with various potential electronic device applications including a two-terminal molecular wire with a transport barrier, a molecular wire with two transport barriers, three-terminal junctions, three-terminal structures with switch-like possibilities, and four-terminal systems that could serve as logical gates without the use of multiple transistors.