How can I purify such kind of 2,6-Bis(3-methylimidazol-1-ylidene)pyridine dibromide or 2PF6 salts?

I want to purify such kind of 2,6-Bis(3-methylimidazol-1-ylidene)pyridine dibromide or 2PF6 salts via column chromatography. These dibromide salts are soluble in water and PF6 salt are soluble in...

26 November 2015 8,069 4 View