Organic electroluminescent element material and organic electroluminescent element employing the same

An organic electroluminescent element comprising a pair of electrodes and, formed therebetween, either a luminescent layer or plural thin organic-compound layers containing a luminescent layer, at least one of said layers being a layer comprising a polymer and, dispersed therein, an organic electroluminescent element material which is a compound represented by formula (I):

• ##STR12## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represents a hydrogen atom or a substituent;
• Z represents a group of atoms necessary for forming a five- or six-membered ring;
• R.sub.0 represents an aliphatic hydrocarbon group, an aryl group, or a heterocyclic group;
• n represents 0 or 1;
• L.sub.1 and L.sub.2 each represents a methine group or a substituted methine group, provided that plural L.sub.1 's, plural L.sub.2 's, or L.sub.1 and L.sub.2 as a whole may form a four- to six-membered ring formed through substituents thereof;
• m represents 0, 1, 2, or 3;
• Q represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group, or a heterocyclic group, provided that Q may be bonded to R.sub.0 to form a ring;
• X.sup.- represents an anion;
• and r represents an integer of 0 or larger, provided that r is 0 when the compound forms an intramolecular salt.