An organic compound is represented by general formula [1-1].

##STR00001##

In general formula [1-1], X is an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom, and R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted silyl group, and a cyano group.

An organic compound is represented by general formula [1-1].

##STR00001##

In general formula [1-1], X is an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom, and R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted silyl group, and a cyano group.

Provided is a composition comprising a compound having structure (I) wherein each of A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5, A.sup.6, A.sup.7, and A.sup.8 is independently CR.sup.12 or N; wherein one to four of A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5, A.sup.6, A.sup.7, and A.sup.8 are N; wherein J.sup.1 is C or Si; wherein J.sup.2 is C(R.sup.13).sub.n, O, (C(R.sup.13).sub.n).sub.2, S, NR.sup.13, or Se; wherein n is 1 or 2; wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, and R.sup.13 is independently H, deuterium, or an organic group. Also provided is a method of making the composition, a method of making an organic light-emitting diode using the composition, and an organic light-emitting diode made by that method. ##STR00001##

Provided is a composition comprising a compound having structure (I) wherein each of A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5, A.sup.6, A.sup.7, and A.sup.8 is independently CR.sup.12 or N; wherein one to four of A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5, A.sup.6, A.sup.7, and A.sup.8 are N; wherein J.sup.1 is C or Si; wherein J.sup.2 is C(R.sup.13).sub.n, O, (C(R.sup.13).sub.n).sub.2, S, NR.sup.13, or Se; wherein n is 1 or 2; wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, and R.sup.13 is independently H, deuterium, or an organic group. Also provided is a method of making the composition, a method of making an organic light-emitting diode using the composition, and an organic light-emitting diode made by that method.

##STR00001##

An organic compound is represented by general formula [1-1]. ##STR00001##
In general formula [1-1], X is an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom, and R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted silyl group, and a cyano group.

An organic compound is represented by general formula [1-1]. ##STR00001##
In general formula [1-1], X is an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom, and R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted silyl group, and a cyano group.