COMPOUND, LUMINESCENT MATERIAL, DELAYED FLUORESCENT SUBSTANCE, ORGANIC LUMINESCENT ELEMENT, OXYGEN SENSOR, AND METHOD AND PROGRAM FOR DESIGNING MOLECULE

摘要

A compound having a local excited triplet energy level E(3LE), a charge-transfer lowest excited singlet energy level E(1CT), and a charge-transfer lowest excited triplet energy level E(3CT) which are each in an energy width range of 0.3 eV. The compound is useful as a luminescent material.