yttrium(3+);trichloride

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The same experimental methods were used for this study as were used for Example 8. The STARBURST™ polyamidoamine methylene-carboxylate terminated material (0.40 g 62.5% active, remainder sodium bromide, 0.12 mmol) was dissolved in 4-5 mL of deuterium oxide. The resultant pH was 11.5-12, which was lowered to 9.4 with 6N HCl prior to the experiment. A solution of yttrium acetate was prepared by dissolving yttrium chloride (0.1125 g, 0.37 mmol) and sodium acetate (0.0915 g, 1.1 mmol) in 1.5 mL of deuterium oxide, thus every 0.5 mL of solution contains one mole equivalent of metal.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The same experimental methods were used for this study as were used for Example 8. The STARBURST™ polyamidoamine methylene-carboxylate terminated material (0.40 g 62.5% active, remainder sodium bromide, 0.12 mmol) was dissolved in 4-5 mL of deuterium oxide. The resultant pH was 11.5-12, which was lowered to 9.4 with 6N HCl prior to the experiment. A solution of yttrium acetate was prepared by dissolving yttrium chloride (0.1125 g, 0.37 mmol) and sodium acetate (0.0915 g, 1.1 mmol) in 1.5 mL of deuterium oxide, thus every 0.5 mL of solution contains one mole equivalent of metal.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The same experimental methods were used for this study as were used for Example 8. The STARBURST™ polyamidoamine methylene-carboxylate terminated material (0.40 g 62.5% active, remainder sodium bromide, 0.12 mmol) was dissolved in 4-5 mL of deuterium oxide. The resultant pH was 11.5-12, which was lowered to 9.4 with 6N HCl prior to the experiment. A solution of yttrium acetate was prepared by dissolving yttrium chloride (0.1125 g, 0.37 mmol) and sodium acetate (0.0915 g, 1.1 mmol) in 1.5 mL of deuterium oxide, thus every 0.5 mL of solution contains one mole equivalent of metal.

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of cobalt nitrate having a gravity of 1.30 g/cm3 was mixed homogeneously with a solution of yttrium chloride having a concentration of 67 g/l in a volume proportion of 520:1. The mixed solution was heated to 60° C. A solution of ammonium oxalate having a gravity of 1.06 g/cm3 and a pH 2.5 was added while stirring. The quantity of ammonium oxalate added was 1.5 mole equivalent per mole equivalent of cobalt nitrate and yttrium chloride. The precipitate of cobalt oxalate and yttrium oxalate was obtained after reaction and filtrated in a vacuum filtrator to remove mother liquid. The filtrate was washed by distilled water of 100° C. for 5 times, dried at 150° C., crushed and sieved by a 40 mesh sieve, reduced at 450° C. in hydrogen for 6 h. The reduced product was crushed again and sieved by a 120 mesh sieve. The cobalt powder thus prepared contains 0.3% (wt.) yttrium.

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of cobalt nitrate having a gravity of 1.30 g/cm3 was mixed homogeneously with a solution of yttrium chloride having a concentration of 67 g/l in a volume proportion of 520:1. The mixed solution was heated to 60° C. A solution of ammonium oxalate having a gravity of 1.06 g/cm3 and a pH 2.5 was added while stirring. The quantity of ammonium oxalate added was 1.5 mole equivalent per mole equivalent of cobalt nitrate and yttrium chloride. The precipitate of cobalt oxalate and yttrium oxalate was obtained after reaction and filtrated in a vacuum filtrator to remove mother liquid. The filtrate was washed by distilled water of 100° C. for 5 times, dried at 150° C., crushed and sieved by a 40 mesh sieve, reduced at 450° C. in hydrogen for 6 h. The reduced product was crushed again and sieved by a 120 mesh sieve. The cobalt powder thus prepared contains 0.3% (wt.) yttrium.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Lithium isopropoxide (24.3 g, 0.37 mol.) and isopropyl alcohol (150 ml) were placed in a round-bottomed flask of a 300 ml-capacity, to which was then added dropwise a solution of anhydrous yttrium trichloride (23.4 g, 0.12 mol.) in 25 ml of tetrahydrofuran under stirring. After the addition of the yttrium trichloride, the mixture in the flask was stirred at 45° C. for 3 hours with heating by means of a mantle heater, followed by concentration of the reaction solution to dryness by evaporation of the solvent. The residue obtained was admixed with 150 ml of benzene and the resultant solution was filtered to remove the insoluble matter. Distillation off of the benzene from the filtered solution gave 16.8 g of yttrium isopropoxide as a slightly yellow crystal. Yield 52.6% the mixture in the flask was stirred at 45° C. for 3 hours with heating by means of a mantle heater followed by concentration of the reaction solution to dryness by evaporation of the solvent The residue obtained the resultant solution was filtered to remove the insoluble matter Distillation off of the benzene from the filtered solution

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Dissolve anhydrous salts such as Yttrium chloride (YCl3) in pure ethanol. Add a known quantity of potassium to ethanol and make potassium ethoxide, KOC2H5. Mix this with YCl3 in ethanol and stir. Under refluxing, a clear solution of yttrium ethoxide and a precipitate of potassium chloride is obtained. The dopant Eu can similarly be added to the Yttrium chloride in ethanol at first and this reaction would form Yttrium europium ethoxides. The ethoxides can then be hydrolyzed by adding a solution of ammonia at room temperature. These products are separated and can then be deposited by various means outlined earlier. Under refluxing

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The same experimental methods were used for this study as were used for Example 8. The starburst polyamidoamine methylene-carboxylate terminated material (0.40g 62.5% active, remainder sodium bromide, 0.12 mmol.) was dissolved in 4-5 ml of deuterium oxide. The resultant pH was 11.5-12, which was lowered to 9.4 with 6 N HC1 prior to the experiment. A solution of yttrium acetate was prepared by dissolving yttrium chloride (0.1125g, .37 mmol.) and sodium acetate (0.0915g, 1.1 mmol.) in 1.5 ml of deuterium oxide, thus every 0.5 ml of solution contains one mole equivalent of metal.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The same experimental methods were used for this study as were used for Example 8. The STARBURST™ polyamidoamine methylene-carboxylate terminated material (0.40 g 62.5% active, remainder sodium bromide, 0.12 mmol) was dissolved in 4-5 mL of deuterium oxide. The resultant pH was 11.5-12, which was lowered to 9.4 with 6N HCl prior to the experiment. A solution of yttrium acetate was prepared by dissolving yttrium chloride (0.1125 g, 0.37 mmol) and sodium acetate (0.0915 g, 1.1 mmol) in 1.5 mL of deuterium oxide, thus every 0.5 mL of solution contains one mole equivalent of metal.

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of cobalt nitrate having a gravity of 1.30 g/cm3 was mixed homogeneously with a solution of yttrium chloride having a concentration of 67 g/l in a volume proportion of 520:1. The mixed solution was heated to 60° C. A solution of ammonium oxalate having a gravity of 1.06 g/cm3 and a pH 2.5 was added while stirring. The quantity of ammonium oxalate added was 1.5 mole equivalent per mole equivalent of cobalt nitrate and yttrium chloride. The precipitate of cobalt oxalate and yttrium oxalate was obtained after reaction and filtrated in a vacuum filtrator to remove mother liquid. The filtrate was washed by distilled water of 100° C. for 5 times, dried at 150° C., crushed and sieved by a 40 mesh sieve, reduced at 450° C. in hydrogen for 6 h. The reduced product was crushed again and sieved by a 120 mesh sieve. The cobalt powder thus prepared contains 0.3% (wt.) yttrium.