| abstract |
The present invention provides a novel platinum complex useful as the material for luminescent elements having good light-emitting properties and good light-emitting efficiency, and a novel luminescent material which can be used in various fields. More specifically, the present invention provides a platinum complex represented by the formula (1): , (wherein, any two rings of ring A, ring B, ring C and ring D represent optionally substituted, nitrogen-containing heterocyclic rings, and the residual two rings represent optionally substituted aryl rings or heteroaryl rings; also, ring A and ring B, ring A and ring C, or/and ring B and ring D may optionally form condensed rings; any two of X1, X2, X3 and X4 represent a nitrogen atom coordinately bound to platinum atom, and the other two represent carbon atoms or nitrogen atoms; Q1, Q2 and Q3 represent bonds, oxygen atoms, sulfur atoms or divalent groups; any two of Z1, Z2, Z3 and Z4 represent coordinate bonds and the other two represent covalent bonds, oxygen atoms or sulfur atoms), as well as a luminescent element containing the platinum complex. |