| abstract |
A metal coordination compound suitable as an organic material for a luminescent device is represented by the following formula (1): n n n wherein M denotes Ir, Pt, Rh or Pd; n is 2 or 3; Y denotes an alkylene group having 2-6 carbon atoms capable of including one or at least two non-neighboring methylene groups which can be replaced with —O—, —S— or —CO— and capable of including hydrogen atom which can be replaced with a linear or branched alkyl group which has 1-10 carbon atoms and is capable of including hydrogen atom which can be replaced with fluorine atom; and CyN denotes a cyclic group containing nitrogen atom connected to M and capable of having a substituent selected from the group consisting of halogen atom; nitro group; phenyl group; trialkylsilyl group having 1-8 carbon atoms; and a linear or branched alkyl group having 1-20 carbon atoms capable of including one or at least two non-neighboring methylene groups which can be replaced with —O—, —S—, —CO—, —CO—O—, —O—CO—, —CH═CH— or —C≡C— and capable of including hydrogen atom which can be replaced with fluorine atom. |