Abstract
Heterometallic assemblies have been key in uncovering new modes of reactivity. Synergistic effects resulting from metals such as Al have garnered attention and inquiries regarding the electronic state of Al that influences reactivity of interest. Al and Al–H moieties are described to be capable of accessing a variety of states including sigma accepting alanes, sigma donating alanes, aluminyls, and aluminylenes. We report a NiAl cluster that features site-differentiating Al centers through Al–H addition, cooperative olefin insertion, and alkyl transfer, the latter of which represents elementary steps related to the “Nickel Effect”. Crystallographic and spectroscopic tools, including T1 studies, clearly demonstrate the site-differentiation of the three Al/Al–H centers.
Supplementary materials
Title
Supplementary Information
Description
Experimental procedures and NMR data for LH2, LAlH2, 1, and 1-D5 and X-ray crystallographic information, and di-merization trials for 1.
Actions
Title
CIF File
Description
Crystallographic Information File for Cluster 1.
Actions