Synthesis and Structural Characterization of Dicyclopentadienylaluminum Alkyl and Tricyclopentadienylaluminum Compounds: Crystal Structure of a Bis(.eta.2-cyclopentadienyl)aluminum Alkyl Compound

Fisher, James D.; Wei, Meng; Willett, Roger D.; Shapiro, Pamela J.

doi:10.1021/om00020a051

Cited by 63 publications

(53 citation statements)

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“…Cg3-C11-Al1-N1 torsion angles are 100.5°and 31.5°, respectively. The observed conformation of Cp rings in 1 and 2 is totally different from the reported previously symmetrical structure of Cp 3 Al AE CN t Bu adduct [3] where Cp rings are symmetry related by threefold axis and the relevant torsion Cg-C CpAl-C angle and the ring-slippage are equal to 104.8°and 1.818 Å , respectively.…”

Section: Molecular and Crystal Structurecontrasting

confidence: 96%

“…It should be emphasized that the uncomplexed MeCp 2 Al does not redistribute at ambient conditions [3]. All studied compounds 1-8 show signal characteristic for four-coordinated Al atom in 27 Al NMR consistent with their monomeric structure.…”

Section: Synthesis Solution Properties and Nmr Analysissupporting

confidence: 53%

“…and Et 2 O was reported [3] and analogous behavior for Me 2 CpAl in THF was also described [22]. It should be emphasized that the uncomplexed MeCp 2 Al does not redistribute at ambient conditions [3].…”

Section: Synthesis Solution Properties and Nmr Analysismentioning

confidence: 78%

“…We examined the supramolecular structure of Cp 3 Al AE CN t Bu based on crystal data deposited in CSD (appropriate data are also included in Table 3) [3,17]. Cp 3 Al AE CN t Bu crystallize in rhombohedral R3 space group.…”

Section: Molecular and Crystal Structurementioning

confidence: 99%

“…Despite the fact that cyclopentadienylaluminum compounds have been under investigation for many years [1,2] very few cyclopentadienylaluminum complexes with Lewis bases have been described [3][4][5]. To the best of our knowledge only one crystal structure of a donor-acceptor compound, Cp 3 Al AE CN t Bu, containing unsubstituted Cp ligand was determined so far.…”

Section: Introductionmentioning

confidence: 99%

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Cyclopentadienylaluminum donor–acceptor complexes – Molecular and supramolecular structure

Leszczyńska

Madura

Kunicki

et al. 2006

Journal of Organometallic Chemistry

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Section: Molecular and Crystal Structurecontrasting

confidence: 96%

Section: Synthesis Solution Properties and Nmr Analysissupporting

confidence: 53%

Section: Synthesis Solution Properties and Nmr Analysismentioning

confidence: 78%

Section: Molecular and Crystal Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Cyclopentadienylaluminum donor–acceptor complexes – Molecular and supramolecular structure

Leszczyńska

Madura

Kunicki

et al. 2006

Journal of Organometallic Chemistry

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A Polyhedral Aluminum Compound with an Al4C4N4 Framework

Zheng¹,

Stasch²,

Prust³

et al. 2001

Angew. Chem.

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Dedicated to Professor Philipp GütlichRecently the oligomeric and polyhedral compounds of aluminum containing Al À N and Al À C cores have attracted considerable interest following the preparation of a few threecoordinate iminoalanes [1] and the determination of the structures of carbaalanes. [2] Heteroatom-containing organoaluminum cage compounds [3] are potential precursors for various applications such as catalysts, reagents, and for chemical vapor deposition, [3a, 4, 5] as well as being of theoretical importance. [6] Although the formation of iminoalanes and carbaalanes is now almost understood, [1±3] compounds containing an Al n C n N n framework (n b 2) are still unknown. [7] We figured that such species should exhibit some interesting features. Herein we report the structure of the polyhedron 1 and the synthesis of the bridging compound with bulky pyrazolato ligands 2 (tBu 2 pz 3,5-di-tert-butylpyrazolato).

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