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DOE OSTI · 3388660

A Ce 4+ Aluminum Hydride Complex

Duffy, Matilda I. [Georgia Institute of Technology, Atlanta, GA (United States)] (ORCID:0000000242259163)·Loutsch, Nathan R. [Univ. of Iowa, Iowa City, IA (United States)]·Mullen, Benjamin M. [Univ. of Iowa, Iowa City, IA (United States)]·Wu, Hongwei [Georgia Institute of Technology, Atlanta, GA (United States)]·Vlaisavljevich, Bess [Univ. of Iowa, Iowa City, IA (United States)] (ORCID:0000000160650732)·La Pierre, Henry S. [Georgia Institute of Technology, Atlanta, GA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:0000000208950655)
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Abstract

Complexes of reducing hydride ligands by high-oxidation state cerium are unknown due to the fundamental mismatch in their redox chemistry. Herein we report the synthesis, characterization, and reactivity of the first example of a Ce 4+ aluminum hydride complex. Synthetic strategies adapted from the preparation of Ce 4+ alkyl complexes facilitated the isolation of [Ce 4+ (κ 2 -H 3 AlC(TMS) 3 )(NP( t Bu) 3 ) 3 ] (CeHAl). The bonding and structure of this complex is characterized by single-crystal XRD, NMR, and UV–vis–NIR spectroscopy, and DFT computations. The fundamental reactivity profile is evaluated by cyclic voltammetry and small-molecule reactions.

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Duffy, Matilda I. [Georgia Institute of Technology, Atlanta, GA (United States)] (ORCID:0000000242259163), Loutsch, Nathan R. [Univ. of Iowa, Iowa City, IA (United States)], Mullen, Benjamin M. [Univ. of Iowa, Iowa City, IA (United States)], Wu, Hongwei [Georgia Institute of Technology, Atlanta, GA (United States)], Vlaisavljevich, Bess [Univ. of Iowa, Iowa City, IA (United States)] (ORCID:0000000160650732), La Pierre, Henry S. [Georgia Institute of Technology, Atlanta, GA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:0000000208950655). 2026-07-11. A Ce 4+ Aluminum Hydride Complex. https://doi.org/10.1021/jacs.6c09952

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