Hydrochlorides and Dodecahydro-closo-dodecaborates of Amino Derivatives of 1,3,5-Triazine in the Technology of Isolation and Purification of the [B12H12]2- Anion

The possibility of using salts of 2,4,6-triamine-1,3,5-triazine, 2,4-diamine-6-methyl-1,3,5-triazine, and 2,4-diamine-6-phenyl-1,3,5-triazine for isolation of the dodecahydro-closo-dodecaborate anion [B12H12](2-) from aqueous solutions has been studied. Compound [2,4-(NH2)(2)-6-Ph-1,3,5-N3CH](2)[B12H12]center dot H2O (solubility 0.06 g in 100 g water at 17 degrees C), promising for the precipitation of the [B12H12](2)-anion, has been isolated by the metathesis reaction of moderately soluble hydrochloride [2,4-(NH2)(2)-6-Ph-1,3,5-N3C3H]Cl center dot H2O with sodium and potassium dodecahydro-closo-dodecaborates. A procedure has been developed for the decomposition of [2,4-(NH2)(2)-6-Ph-1,3,5-N3C3H](2)[B12H12]center dot H2O with ammonium hydroxide to obtain soluble salts of the [B12H12](2)-anion.

Automated summary

The possibility of using triazine salts to isolate the [B12H12](2-) anion from aqueous solutions has been studied. A compound with good potential for precipitation of the anion has been synthesized, and a decomposition method has been developed to obtain soluble salts of the anion.