(1,3,4,5-tetramethylimidazol-2-ylidene)
tris(2,2,6,6-tetramethyl-3,5-heptanedionato-O,O')europium
Arduengo, A. J., III; Tamm, M.; McLain, S. J.; Calabrese, J. C.; Davidson, F.; Marshall, W. J. J. Am. Chem. Soc., 1994, 116, 7927.
 

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