Cyclodisalazane Cations—Synthesis and Crystal Structure

Kliebisch, U.; Klingebiel, Uwe; Sheldrick, George M.

doi:10.1002/anie.198609151

Cited by 16 publications

(2 citation statements)

References 12 publications

(1 reference statement)

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“…In the literature, a δ 29 Si value (Ϫ0.56 or Ϫ1.4) has been most likely incorrectly assigned to a bridging NSiMe 3 group [12] similar to that in 3a. The bridging nitrogen atom in 3a is an ammonium-type nitrogen, and the 29 Si nucleus of a silyl group attached to such a nitrogen atom becomes generally significantly deshielded [15,16]. A similar behaviour has been observed for 29 Si nuclei in silylethers complexed with AlEt 3 [17].…”

Section: Nmr Spectroscopic Studies In Solutionmentioning

confidence: 70%

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Ferrocenophanes with Interannular Nitrogen‐Aluminum Bridges – Synthesis and Structure

Wrackmeyer

Klimkina

Milius

2007

Zeitschrift anorg allge chemie

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The reaction of 1,1Ј-bis(trimethylsilylamino)ferrocene (1) with trimethyl-or triethylaluminum proceeds by elimination of methane or ethane, respectively, to novel ferrocenophanes 2a,b containing an N 2 Al 2 bridge. Addition of pyridine to 2 affords the pyridine adducts of 1,3-diaza-2-alkylalumina-[3]ferrocenophanes (4a,b) and of AlR 3 . The [3]ferrocenophanes 4 can be converted into 2 by addition of AlR 3 . The solution-state structure of the new compounds follows from a consistent set of NMR spectroscopic data Scheme 1 Reaction of 1,1Ј-bis(trimethylsilylamino)ferrocene 1 with trialkylaluminum.

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Section: Nmr Spectroscopic Studies In Solutionmentioning

confidence: 70%

“…Treatment of 2a with pyridine in a ratio of ഠ1:1 led to mixtures containing a variable, in general small amount of Table 1 13 C, 29 Si, 15 N and 27 Al NMR data [a] of the compounds 2Ϫ5 and of 4(H) [9] for comparison.…”

Section: Nmr Spectroscopic Studies In Solutionmentioning

confidence: 99%