## Abstract The preparation of a family of dinuclear monocyclopentadienyl imidoniobium and ‐tantalum complexes was achieved by two different synthetic routes. The diimido complexes [{M(Cp′)Cl~2~}~2~(μ‐1,__i__‐NC~6~H~4~N)] [Cp′ = η^5^‐C~5~H~4~SiMe~3~, M = Nb, __i__ = 4 (1); Cp′ = η^5^‐C~5~H~4~SiMe~3
Metal-bridging vs. chelating Me2Si(C5H4)2 ligands in dinuclear complexes: III. Mass spectrometry of organo-rare earth (M Y, Yb) hydrides containing the Me2Si(C5H4)2 ligand, and crystal structure of the new complex [{Me2Si(η5-C5H4)2YbIII(THF)}2(μ-H)(μ-Cl]
✍ Scribed by Ke Qiao; R.Dieter Fischer; Gino Paolucci
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 972 KB
- Volume
- 456
- Category
- Article
- ISSN
- 0022-328X
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## Abstract The monoalkyl complexes [Zr{Me~2~Si(η^5^‐C~5~Me~4~)(η^5^‐C~5~H~3~R)}(R′)Cl] [R = Me, R′ = CH~2~Ph (1); R = Me, R′ = CH~2~SiMe~3~ (2); R = __i__Pr, R′ = CH~2~Ph (3); R = __i__Pr, R′ = CH~2~SiMe~3~ (4); R = SiMe~3~, R′ = CH~2~Ph (5); R = SiMe~3~, R′ = CH~2~SiMe~3~ (6)] have been synthesiz
The trichlorides of yttrium, samarium, and lutetium react with 2 equivalents of Na[C 5 H 4 t Bu] and 1 equivalent of NaBH 4 to give [(g 5 -C 5 H 4 t Bu) 2 LnBH 4 (THF)] (Ln = Y (1), Sm (2), Lu (3)) or with 2 equivalents of Na[C 5 Me 4 R] and 1 equivalent of NaBH 4 to form [(g 5 -C 5 Me 4 R) 2 ĹnBH 4