THE COORDINATION CHEMISTRY OF DIVALENT BIS(PENTAMETHYLCYCLOPENTADIENYL)LANTHANIDE COMPLEXES WITH NON-CLASSICAL LIGANDS

(ME[SUB]5 C[SUB]5) [SUB]2 YB(MU-H[SUB]3 B)(PME[SUB]3 ): A COMPLEX WITH A NEAR-LINEAR BH[SUB]3 BRIDGING GROUP

PREPARATION OF THE FIRST MOLECULAR ^-ACETYLENE COMPLEX OF A 4f-TRANSITION METAL, (Me5C5)2Yb( 2-MeC CMe)

PREPARATION OF THE FIRST -OLEFIN COMPLEX OF A 4f-TRANSITION METAL, (Me5C5)2Yb ( -C2H4)Pt(PPh3)2

REACTION OF (ME[SUB]5 C[SUB]5 )[SUB]2 YB WITH FLUOROCARBONS: FORMATION OF (ME[SUB]5 C[SUB]5 )[SUB]4 YB[SUB]2 (MU-F) BY INTRAMOLECOLAR C-F ACTIVATION

PREPARATION AND CRYSTAL STRUCTURE OF THE MIXED-VALENCE Yb(III,II) TETRANUCLEAR COMPLEX, (Me5C5)6Yb4(u-F)4

DIVALENT LANTHANIDE CHEMISTRY. REACTION OF BASE-FREE BIS |BIS(TRIMETHYLSILYL)AMIDE] YTTERBIUM (II) WITH SUBSITUTED CYCLOPENTADIENES; PREPARATIONS OF BASE-FREE BIS(PENTAMETHYLCYCLOPENTADIENYL) YTTERBIUM (II)