Methods of making bimetal complexes

Abstract

Methods of forming bimetal complexes including reacting polyfunctional compounds with two or more coordination elements and recovering a bimetal complex.

1 . A method of forming a bimetal complex comprising
 dissolving an amino acid having at least two carboxylic acid groups in a solvent to form a solution;   
       adding a source of a first coordination element to the solution; 
       adding a source of a second coordination element to the solution, 
       wherein the first coordination element is different from the second coordination element and the first and second coordination elements are individually selected from copper, silver, gold, aluminum, scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, gallium, yttrium, zirconium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, silver, cadmium, indium and tin; and 
       recovering a bimetal complex. 
     
     
         2 . A method as in  claim 1  wherein the coordination first and second elements are copper and zinc, respectively. 
     
     
         3 . A method as in  claim 1  wherein the source of a first coordination element provides Cu +2  ions in the solution. 
     
     
         4 . A method as in  claim 1  wherein the source of a second coordination element provides Zn +2  ions in the solution. 
     
     
         5 . A method as in  claim 1  wherein the source of a first coordination element and the source of a second coordination element provides, respectively, are compounds of the formula Cu(O 2 C—CH 2 CO 2 ) 2  and Zn(O 2 C—CH 2 CO 2 ) 2 . 
     
     
         6 . A method as in  claim 1  wherein the amino acid having at least two carboxylic acid groups is a glutamic acid or an aspartic acid. 
     
     
         7 . A method of forming a bimetal complex comprising
 dissolving a polyamine in a solvent to form a solution;   adding a source of a first coordination element to the solution;   adding a source of a second coordination element to the solution,   wherein the first coordination element is different from the second coordination element and the first and second coordination elements are individually selected from copper, silver, gold, aluminum, scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, gallium, yttrium, zirconium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, silver, cadmium, indium and tin; and   recovering a bimetal complex.   
     
     
         8 . A method as in  claim 7  wherein the coordination first and second elements are copper and zinc, respectively. 
     
     
         9 . A method as in  claim 7  wherein the source of a first coordination element provides Cu +2  ions in the solution. 
     
     
         10 . A method as in  claim 7  wherein the source of a second coordination element provides Zn +2  ions in the solution. 
     
     
         11 . A method as in  claim 7  wherein the source of a first coordination element and the source of a second coordination element provides, respectively, are compounds of the formula Cu(O 2 C—CH 2 CO 2 ) 2  and Zn(O 2 C—CH 2 CO 2 ) 2 .