N as intermediates

Further, [Ru3(CO)i2], supported on a basic silica surface (molar ratio K2CO3 Ru = 10 1), reacts with CO -r H2 at 80°C to give K[H3Ru4(CO)i2], a process that could involve either [H4Ru4(CO)i2] or K[HRu3(CO)n] as intermediate species. In fact on such a basic silica surface, [H4Ru4(CO)i2] is easily deprotonated to give... 

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