N-Heterocyclic Carbene Stabilized Aluminum Alkyls and Their Reactivity toward NHC-Alanes
Herein, we report the synthesis of several new NHC-stabilized aluminum alkyl species [NHCAlR<sub>3</sub>] (for NHC = ICy, R = Me, <i>i</i>Bu; NHC = IMes and IDip, R = <i>i</i>Bu) via coordination of the respective free carbene to AlMe<sub>3</sub> or Al<i>i</i>Bu<sub>3</sub>. Attempts to access Al-Al bonded species (dialumanes) via reactions with the respective NHCAlH<sub>3</sub> complexes did not yield the desired Al-(II) complexes via R-H elimination, instead yielding the R/H ligand scrambled complexes NHCAlR<sub>2</sub>H and NHCAlRH<sub>2</sub>, respectively. These mixed-ligand species were characterized by <sup>1</sup>H, <sup>13</sup>C-{<sup>1</sup>H}, and multinuclear NMR spectroscopy, with select cases characterized by single-crystal X-ray diffraction studies.
Authors
- Catherine Weetman (ORCID: https://orcid.org/0000-0001-5643-9256)
- Alan R. Kennedy (ORCID: https://orcid.org/0000-0003-3652-6015)
- Stuart Burnett (ORCID: https://orcid.org/0009-0008-7124-2169)
Institutions
- University of Strathclyde (GB)
Publication Details
- Journal
- Organometallics
- Published
- 2025-12-14
- DOI
- https://doi.org/10.1021/acs.organomet.5c00409
- Primary Topic
- Synthesis and characterization of novel inorganic/organometallic compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.00