Komplexe von lanthaniden-tricyclopentadienylen mit basen

Coordinated Isonitriles

“…10 Back donation and formation of a second M-C bond of the 7r-type is accompanied by a decrease of the CN stretching frequency corresponding to a contribution from structure II. While metals of the groups IB and IIB (Cu, Ag, Au, Zn, Cd, Hg) and rare earth metals 12 essentially form only cr-bonds with isonitriles, most of the other transition metals can also engage in 7r-bonding.…”

Synthesis of Rare Earth (Oxo)nitridocarbonates by Employment of Supercritical Carbon Dioxide, Single‐source Precursor, Solid‐State, and Ion Exchange Reactions

“…On this background molecular precursor compounds with ligands exhibiting an adequate thermal lability for subsequent pyrolysis reactions were targeted. [29] In the 1960s, Wilkinson [30] and Fischer [30][31][32][33] synthesized the first rare earth metallocenes and observed their ability to bind ammonia. During our search for reactive lanthanide nitride 4 materials we have extensively studied the reaction of Cp 3 Ln complexes (1, Ln = Sm, Dy, Ho, Er, Yb) with liquid ammonia yielding sublimable ammine complexes (2).…”

Cubic di-μ-amido-bis[bis(η5-cyclopentadienyl)ytterbium(III)]

“…The monoclinic [Cp 2 YbNH 2 ] 2 complex was first described by Fischer & Fischer (1966). The first single X-ray diffraction data of this compound were presented by Baisch, Pagano, Zeuner, Barros et al (2006).…”