NOVELTY - Anthracene-2,6-diamine derivatives are new.    USE - In an organic electroluminescent device and in organic solar cell (claimed), where the device includes organic light emitting device (OLED).    ADVANTAGE - The electroluminescent compounds are green electroluminescent compounds of which the luminous efficiency and device life time is maximized. The compounds enhance the luminous properties; exhibit excellent color purity, high luminous efficiency and much improved device lifetime; show an efficient energy transfer mechanism between the host and the dopant, which can realize electroluminescent property with a reliably high efficiency on the basis of improvement in electron density distribution. The structure of the compounds provides a skeletal which can also tune an electroluminescent property with high efficiency in the range from blue to red, not only for green electroluminescence. Beyond the concept of using a host material with high electron conductivity, the compounds apply a host having appropriate balance of hole conductivity and electron conductivity, thus overcoming the problems of conventional materials including low initial efficiency and short lifetime, and ensures electroluminescent properties with high performance having high efficiency and long life for each color.    DETAILED DESCRIPTION - Anthracene-2,6-diamine derivatives of formula (I) are new.    R1 and R2=H, deuterium, (1-60C)alkyl, (2-20C)alkenyl, (2-20C)alkynyl, (3-15C)cycloalkyl, tri(1-20C)alkylsilyl, di(1-20C)alkyl(6-20C)arylsilyl, tri(6-20C)arylsilyl, (7-15C)tricycloalkyl, (4-15C)bicycloalkyl, (6-60C)aryl or (3-60C)heteroaryl (where the alkyl, alkenyl, alkynyl, cycloalkyl, trialkylsilyl, dialkylarylsilyl, triarylsilyl, tricycloalkyl, bicycloalkyl, aryl or heteroaryl are optionally substituted by deuterium, (1-60C)alkyl, (1-20C)alkenyl, (1-20C)alkynyl, halo, cyano, phenyl, biphenyl, fluorenyl, naphthyl or anthryl);    Ar1 and Ar2=(6-60C)aryl, (3-60C)heteroaryl, morpholino or thiomorpholino (where aryl or heteroaryl is substituted by deuterium, (1-60C)alkyl (optionally substituted by halo), (1-20C)alkoxy, (3-15C)cycloalkyl, halo, cyano, tri(1-20C)alkylsilyl, di(1-20C)alkyl(6-20C)arylsilyl, tri(6-20C)arylsilyl, phenyl, biphenyl, fluorenyl, naphthyl or anthryl);    Ar3 and Ar4=(6-20C)arylene (optionally substituted with (1-20C)alkyl);    R3 and R4=(1-20C)alkyl or (6-20C)aryl (where aryl is optionally substituted by deuterium or (1-20C)alkyl);    R3-Ar3- and R4-Ar4-=41 groups as given in the specification (e.g. group of formula (i) and (ii));    R11-R13,R15=(1-20C)alkyl or (6-20C)aryl;    m=0 to 4;    n=0-3.    Provided that total number of carbons in R3-Ar3- and is 21-60. INDEPENDENT CLAIMS are included for the following:    (1) an organic electroluminescent device comprising the organic electroluminescent compound (I), with the extra provisions that total number of carbons in R4-Ar4- is 21-60 and where the organic electroluminescent compound is employed as a dopant material of an electroluminescent layer;    (2) an organic electroluminescent device comprising a first electrode; a second electrode; and at least one organic layer interposed between the first electrode and the second electrode, where the organic layer comprises the organic electroluminescent compound (I), with the extra provisions that total number of carbons in R4-Ar4- is 21-60 and at least one host selected from (Ar11)b-L1-(Ar12)c (II) or (Ar13)d-L2-(Ar14)e (III); and    (3) an organic solar cell comprising an organic electroluminescent compound (I), with the extra provisions that total number of carbons in R4-Ar4- is 21-60.    L1=(6-60C)arylene or (4-60C)heteroarylene;    L2=anthracenylene;    Ar11-Ar14=H, (1-60C)alkyl, (1-60C)alkoxy, halo, (4-60C) heteroaryl, (5-60C)cycloalkyl or (6-60C)aryl (where cycloalkyl, aryl or heteroaryl are optionally substituted with (6-60C)aryl or (4-60C) heteroaryl (optionally substituted with deuterium, (1-60C)alkyl (optionally substituted with halo), (1-60C)alkoxy, (3-60C)cycloalkyl, halogen, cyano, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl or tri(6-60C)arylsilyl), (1-60C)alkyl optionally substituted with halo), (1-60C)alkoxy, (3-60C)cycloalkyl, halo, cyano, tri(1-60C)alkylsilyl, di(1-60C)alkyl(6-60C)arylsilyl or tri(6-60C)arylsilyl);    b-e=0 to 4.