NOVELTY - A compound contains organic metal complex consisting of platinum and specific side groups.    USE - A compound for composition and formulation used for electronic devices, such as organic electroluminescent devices e.g. organic LEDs and polymer LEDs, organic integrated circuits, organic field effect transistors, organic thin film transistors, organic light emitting transistors, organic solar cells, organic optical detectors, organic photoreceptors, organic field quenching devices, light emitting electrochemical cells, or organic laser diodes (all claimed).    ADVANTAGE - The compounds have good color purity, improved luminous efficiency, low roll-off, and long lifetime.    DETAILED DESCRIPTION - A compound of formula (1) contains organic metal complex consisting of platinum and specific side groups.    M=transition metal or metal ion, preferably from platinum group;    A, E, G, J=aromatic or heteroaromatic ring, condensed ring system, or polycyclic ring system optionally substituted by R 1;    Y 1-Y 4=N or C provided that greater than or equal to 2 of Y 1-Y 4 are N;    Q 1-Q 3=bridging units;    w1-w7=0 or 1 provided that sum of w1-w7 is 1 or 2, preferably 1;    z1-z7=0 or 1 provided that when wi is 0 then zi is 0 and if zi is 0 and wi is greater than or equal to 0 then W is bonded to Qi or to ring A, E, G, or J via a single bond;    W=compound of formula (2);    B', F'=formula (2a) which may be condensed with adjacent ring C' and E';    X=CR 1 or N;    T=-C(R 1) 2, -Si(R 1) 2, -N, -NR 1, -O, -S, -C(=O), -S(=O), -SO 2, -CF 2, -SF 4, -P, -P(=O)R 1, -PF 2, -P(=S)R 1, -As, -As(=O), -As(=S), -Sb, -Sb(=O), and/or -Sb(=S);    U=T if m is 0 and -CR 1, -SiR 1, or -N if m is 1;    V=C(R 1) 2, NR 1, O, or S;    R 1=H, D, F, Cl, Br, I, N(R 2) 2, CN, NO 2, Si(R 2) 3, B(OR 2) 2, C(=O)R 2, P(=O)(R 2) 2, S(=O)R 2, S(=O) 2R 2, 1-40C alkyl, 1-40C alkoxy, 1-40C thioalkoxy, 2-40C alkenyl, 2-40C alkynyl, 3-40C (cyclic) alkyl, 3-40C (cyclic) alkenyl, 3-40C (cyclic) alkynyl, 3-40C (cyclic) alkoxy, or 3-40C (cyclic) thioalkoxy which are optionally substituted by R 2 radicals, whose CH 2 groups are optionally substituted by R 2C=CR 2, -CC-, Si(R 2) 2, Ge(R 2) 2, Sn(R 2) 2, C=O, C=S, C=Se, C=NR 2, P(=O)(R 2), SO, SO 2, NR 2, O, S, or CONR 2, where H atoms are optionally substituted by D, F, Cl, Br, I, CN, NO 2, 5-60C (hetero)aromatic ring optionally substituted by R 2, 5-60C (hetero)aryloxy optionally substituted by R 2, and/or 10-40C diarylamino, diheteroarylamino, or arylheteroarylamino optionally substituted by R 2, and in which greater than or equal to 2 R 1 radicals may form mono- or polycyclic, aliphatic, aromatic, and/or benzo-fused ring system;    R 2=R 1 in which R 2 groups are changed to R 3;    R 3=H, D, F, 1-20C aliphatic, aromatic, and/or heteroaromatic hydrocarbon radical optionally substituted by F in which greater than or equal to 2 R 3 may form mono- or polycyclic, aliphatic, or aromatic ring system;    K=C(R 1) 2 or single bond between M' and C' when m is 1, or R 1 when m is 0 and k is 1;    M'=Ph optionally substituted by greater than or equal to 1 R 1;    N'=C(R 1) 2 or single bond between M' and ring E' if m is 1, or R 1 when m is 0 and n is 1;    k=0 or 1;    m=0 or 1 in which r is 0 when m is 1;    n=0 or 1;    r=0, 1, or 2 in which r is 1 or 2 if m is 0;    s=0 or 1, preferably 0;    t=3 if r is 1 or 2, and 1 if r is 0;    v=0 or 1 in which D' is a 5-membered ring if v is 0; and    Z=spacer group.    INDEPENDENT CLAIMS are included for:    (1) composition containing compound with metal complex and organic functional material e.g. hole transport material (HTM), hole injection material (HIM), electron transport material (ETM), electron injection material (EIM), hole blocking material (HBM), exciton blocking material (ExBM), host or matrix material, fluorescent emitter, and/or phosphorescent emitter;    (2) formulation containing compound with metal complex or composition and greater than or equal to 1 solvents;    (3) electronic device containing the composition and greater than or equal to 1 light emitting layers;    (4) electroluminescent device containing compound with metal complex or composition for use in phototherapy in medicine and cosmetics; and    (5) treatment method of skin with phototherapy which involves employing light emitting device consisting of compound or composition.