Derivates of 1,2-diborabenzene: II. (1,2-Dibora-3,5-cyclohexadiene)metal complexes. Crystal structure of (C5Me5)Rh(C4H4B2Cl2)
✍ Scribed by G.E. Herberich; B. Hessner; M. Hostalek
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 849 KB
- Volume
- 355
- Category
- Article
- ISSN
- 0022-328X
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## 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
## Abstract The cobaltocenium salts [Co{C~5~H~4~(B__i__Pr~2~)}~2~]PF~6~ [(1a)PF~6~] and [Co{C~5~H~4~(BMe~2~)}~2~]PF~6~ [(1b)PF~6~] are strong Lewis acids. With pyridine (1a)PF~6~ forms a mono‐adduct 2 and a di‐adduct 3 which show NMR spectra in the low‐temperature regime of pyridine exchange. With