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Metal coordination compound, luminescence device and display apparatus

  • US 6,921,915 B2
  • Filed: 03/06/2002
  • Issued: 07/26/2005
  • Est. Priority Date: 03/08/2001
  • Status: Expired due to Term
First Claim
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1. A metal coordination compound represented by the following formula (6):

  • embedded image

    wherein X denotes CRR′

    , O or S where R and R′

    are independently a linear or branched alkyl group of formula;

    CnH2n+1

    in which n is an integer of 1-20, the alkyl group can include one or non-neighboring two or more methylene groups that can be replaced with —

    O— and

    also can include a hydrogen atom that can be optionally replaced with a fluorine atom;

    R2 denotes a hydrogen atom;

    a fluorine atom;

    a linear or branched alkyl group of formula;

    CnH2n+1

    in which n is an integer of 1-20, the alkyl group can include one or non-neighboring two or more methylene groups that can be replaced with —

    O— and

    also can include a hydrogen atom that can be optionally replaced with a fluorine atom;

    a phenyl group optionally having a substituent;

    a 9,9-dialkylfluorenyl group (of which the alkyl groups are independently a linear or branched alkyl group of formula;

    CnH2n+1

    in which n is an integer of 1-20, the alkyl group can include one or non-neighboring two or more methylene groups that can be replaced with —

    O— and

    also can include a hydrogen atom that can be optionally replaced with a fluorine atom);

    a dibenzofuranyl group optionally having a substituent; and

    a dibenzothienyl group optionally having a substituent; and

    R1 and R4 independently denote a hydrogen atom;

    a fluorine atom;

    a phenyl group optionally having a substituent; and

    a linear or branched alkyl group of formula;

    CnH2n+1

    in which n is an integer of 1-20, the alkyl group can include one or non-neighboring two or more methylene groups that can be replaced with —

    O— and

    also can include a hydrogen atom that can be optionally replaced with a fluorine atom;

    the said optional substituent of said phenyl group, said 9,9-dialkylfluorenyl group, said dibenzofuranyl group and said dibenzothienyl group is a fluorine atom or a linear or branched alkyl group of formula;

    CnH2n+1

    in which n is an integer of 1-20, the alkyl group can include one or non-neighboring two or more methylene groups that can be replaced with —

    O— and

    also can include a hydrogen atom that can be optionally replaced with a fluorine atom.

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