A Series of the Twelve-Vertex Ferratricarbollides [2-(η5-C5H5)-9-X-closo-2,1,7,9-FeC3B8H10] (Where X = H2N, MeHN, Me2N, ButHN, But(Me)N). A Highly Stable Metallatricarbaborane System with Amine Functions in the Para Position to the Metal Center | Publicación