The present invention provides a curable composition containing a compound represented by General Formula A and a compound represented by General Formula B.

ArL-Sp-Pol).sub.n  (General Formula A)

In General Formula A, Ar represents an n-valent group containing a nitrogen-containing fused aromatic ring as a partial structure; L represents a linking group such as —O— and —C(═O)O—; Sp represents a single bond or a divalent linking group; Pol represents a hydrogen atom or a polymerizable group; n represents 1 or 2; and the compound represented by General Formula A has at least one polymerizable group.

##STR00001##

In General Formula B, R′, R″, and R′″ are each independently a hydrogen atom or a substituent; R′ and R″ or R″ and R′″ may be bonded to each other to form a ring that may have a substituent; and W is a hydrogen atom or a substituent. Using the curable composition of the present invention, it is possible to form a cured product having a small Abbe number, a large partial dispersion ratio, and high light stability.

The present disclosure provides an organic compound represented by the following Formula (I):

##STR00001## wherein each of R.sup.1 and R.sup.2 is independently selected from the groups consisting of CN, CF.sub.3 and a substituted or non-substituted ester group, R.sup.3 is selected from the groups consisting of hydrogen, a substituted or non-substituted C.sub.1-C.sub.12 alkyl group and a substituted or non-substituted C.sub.1-C.sub.12 aryl group, and m is an integer between 1 and 4; each of Ar.sup.1 and Ar.sup.2 is independently selected from the group consisting of an ortho, meta or para substituted C.sub.6 aromatic ring; and each of

##STR00002##

is independently an electron-donating group.

The present disclosure provides an organic compound represented by the following Formula (I):

##STR00001## wherein each of R.sup.1 and R.sup.2 is independently selected from the groups consisting of CN, CF.sub.3 and a substituted or non-substituted ester group, R.sup.3 is selected from the groups consisting of hydrogen, a substituted or non-substituted C.sub.1-C.sub.12 alkyl group and a substituted or non-substituted C.sub.1-C.sub.12 aryl group, and m is an integer between 1 and 4; each of Ar.sup.1 and Ar.sup.2 is independently selected from the group consisting of an ortho, meta or para substituted C.sub.6 aromatic ring; and each of

##STR00002##

is independently an electron-donating group.

The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device lower their driving voltage, improves their luminous efficiency and color purity.

##STR00001##

The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device lower their driving voltage, improves their luminous efficiency and color purity.

##STR00001##

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

A compound for spacing nonlinear optical chromophores of the Formula I

##STR00001##

and the commercially acceptable salts, solvates and hydrates thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, W, X, Y, Z, Q.sup.1, Q.sup.2, Q.sup.4 and L have the definitions provided herein.

A compound for spacing nonlinear optical chromophores of the Formula I

##STR00001##

and the commercially acceptable salts, solvates and hydrates thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, W, X, Y, Z, Q.sup.1, Q.sup.2, Q.sup.4 and L have the definitions provided herein.

Object of the present invention is an improved process for the preparation of cyclopropyldiketopiperazines and thereof key intermediates.

Object of the present invention is an improved process for the preparation of cyclopropyldiketopiperazines and thereof key intermediates.