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Metal complex, method for producing the same and optical device

  • US 5,837,390 A
  • Filed: 05/01/1996
  • Issued: 11/17/1998
  • Est. Priority Date: 05/10/1995
  • Status: Expired due to Fees
First Claim
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1. A bi-nuclear metal complex comprising:

  • a bi-nuclear metal complex having the formula;

    
    
    space="preserve" listing-type="equation">M.sub.2 (L.sup.1 -O).sub.m (L.sup.2 -O).sub.n (L.sup.3 -O).sub.3-m-n Xp,(I)wherein M is a metal selected from the group consisting of Be, Mg, Ca, Sr, Ba, Ra, Zn, Cd and Hg;

    X is a halogen or an anion capable of pairing with an alkoxyl group or a phenoxyl group, m and n are, independently, integers of from 0 to 3, p is an integer of from 0 to 4;

    L1, L2 and L3 are ligands individually different from each other and each is a ligand derived from a compound having a hydroxyl group and an aromatic nitrogen atom within the compound represented by the formulas;

    ##STR12## wherein R1 and R2 are independently a group or an atomic group;

    R1 may form a ring in cooperation with an atom adjacent to the aromatic nitrogen atom and/or a part of R2 ; and

    R2 together with the aromatic nitrogen atom and/or an atom adjacent to the nitrogen atom forms a ring.

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