A luminescence device comprising a pair of electrodes and an organic
compound layer disposed therebetween. The layer contains a metal
coordination compound represented by the following formula (1):
##STR1##
wherein M is Ir, Rh or Pd; n is 2 or 3; and X.sub.1 to X.sub.8 is,
independently, a hydrogen atom or a substituent selected from the group
consisting of a halogen atom; a nitro group; a trifluoromethyl group; a
trialkylsilyl group having three linear or branched alkyl groups each
independently having 1-8 carbon atoms; and a linear or branched alkyl
group having 2-20 carbon atoms capable of including one or at least two
non-neighboring methylene groups which can be replaced with --O--, --S--,
--C(O)--, --C(O)--O--, --O--C(O)--, --CH.dbd.CH-- or --C.ident.C-- and
capable of including hydrogen atom which can be replaced with fluorine
atom.
