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Issue 4, 2016
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Synthesis, structure and bonding of hexaphenyl thorium(iv): observation of a non-octahedral structure

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Abstract

We report herein the synthesis of the first structurally characterized homoleptic actinide aryl complexes, [Li(DME)3]2[Th(C6H5)6] (1) and [Li(THF)(12-crown-4)]2[Th(C6H5)6] (2), which feature an anion possessing a regular octahedral (1) or a severely distorted octahedral (2) geometry. The solid-state structure of 2 suggests the presence of pseudo-agostic ortho C–H⋯Th interactions, which arise from σ(C–H) → Th(5f) donation. The non-octahedral structure is also favoured in solution at low temperatures.

Graphical abstract: Synthesis, structure and bonding of hexaphenyl thorium(iv): observation of a non-octahedral structure

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Supplementary files

Article information


Submitted
04 Oct 2015
Accepted
06 Nov 2015
First published
09 Nov 2015

Chem. Commun., 2016,52, 689-692
Article type
Communication

Synthesis, structure and bonding of hexaphenyl thorium(IV): observation of a non-octahedral structure

E. A. Pedrick, P. Hrobárik, L. A. Seaman, G. Wu and T. W. Hayton, Chem. Commun., 2016, 52, 689
DOI: 10.1039/C5CC08265J

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