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Tetrarhodium dodecacarbonyl is the chemical compound with the formula Rh4(CO)12. This dark-red crystalline solid is the smallest stable binary rhodium carbonyl. It is used as a catalyst in organic synthesis.
Additional recommended knowledge
Structure, synthesis, reactions
The cluster undergoes thermal substitution with phosphorus ligands:
Related metal carbonyls
Because of their relevance to hydroformylation catalysis, the metal carbonyls has been systematically studied to a high degree. The instability of Rh2(CO)8 has been a source of curiosity. The analogous binary carbonyl of cobalt, Co2(CO)8, is well known. Solutions of Rh5(CO)12 under high pressures of CO do convert to the dirhodium compound:
The relative instability of Rh2(CO)8 conforms with a general trend: Ru(CO)5 loses CO spontaneously to give Ru3(CO)12.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tetrarhodium_dodecacarbonyl". A list of authors is available in Wikipedia.|