Method of synthesis of anhydrous thorium(IV) complexes
View Patent ↗Method of producing anhydrous thorium(IV) tetrahalide complexes, utilizing Th(NO 3 ) 4 (H 2 O) x , where x is at least 4, as a reagent; method of producing thorium-containing complexes utilizing ThCl 4 (DME) 2 as a precursor; method of producing purified ThCl 4 (ligand) x compounds, where x is from 2 to 9; and novel compounds having the structures:
1. A method of producing anhydrous thorium(IV) tetrahalide complexes comprising:
a) providing Th(NO 3 ) 4 (H 2 O) x , where x is at least 4;
b) reacting said Th(NO 3 ) 4 (H 2 O) x with a halide-containing strong acid to produce ThX 4 (H 2 O) 4 , wherein X is a halide selected from the group consisting of bromide, chloride, iodide, and combinations thereof; and,
c) drying the ThX 4 (H 2 O) 4 with Me 3 SiCl or a mixture of anhydrous HC1 and Me 3 SiCl in a suitable solvent to produce a ThX 4 -ligand complex of the formula ThX 4 (ligand) 2 , wherein a molecule of ligand is a molecule of the suitable solvent, the suitable solvent selected from the group consisting of dimethoxyethane and dioxane.
2. The method of claim 1 , wherein X is chloride.
3. The method of claim 1 , wherein the solvent is dimethoxyethane.
4. The method of claim 3 , wherein the ThX 4 -ligand complex is ThCl 4 (dimethoxyethane) 2 .
5. The method of claim 1 , wherein the solvent is a dioxane.
6. The method of claim 5 , wherein the ThX 4 -ligand complex is ThCl 4 (1,4-dioxane) 2 .
7. The method of claim 1 , wherein the ThX 4 -ligand complex is present in a yield of at least 90%.
8. The method of claim 1 , wherein the reaction is performed at a temperature of 130° C. or less.
9. A compound having the structure: