The formula of the anionic catalyst is generally defined as M+n n wherein A represents Fe, Ru or Os, M is a cationic species, n is an integer greater than or equal to 2, x is an integer greater than or equal to 1, y is an integer greater than or equal to 0 and z is {HEAD ~ an integer} generally corresponding to {TAIL ~ the number} of available coordination bonding sites in the ruthenium complex 
generally corresponding to
The formula of the anionic catalyst is generally defined as M+n n wherein A represents Fe , Ru or Os , M is a cationic species , n is an integer greater than or equal to 2 , x is an integer greater than or equal to 1 , y is an integer greater than or equal to 0 and z is { HEAD ~ an integer } generally corresponding to { TAIL ~ the number } of available coordination bonding sites in the ruthenium complex
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