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Issue 3, 2017
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Synthesis and reactivity of tantalum corrole complexes

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Abstract

Reaction of the free base corrole (Mes2(p-OMePh)corrole)H3 with tantalum trialkyl precursors TaMe3Cl2 and TaBn3NtBu resulted in the formation of the tantalum dichloride (1) and tantalum imido (4) corrole complexes via alkane elimination. The X-ray crystal structures of these two compounds have been determined and the structural parameters are discussed. The Ta centre of 1 was found to sit out of the plane of the corrole ring by 0.903 Å and is cis-ligated, similarly to what has been reported for group 4 porphyrin complexes. From complex 1 we synthesized the dimethyl derivative (2), the reactivity of which is compared to an analogous tantalum dimethyl porphyrin cation. The imido complex 4 reacted with triphenylmethanol and 4-methylbenzyl alcohol, resulting in different extents of protonation of the imido group.

Graphical abstract: Synthesis and reactivity of tantalum corrole complexes

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Publication details

The article was received on 08 Nov 2016, accepted on 13 Dec 2016 and first published on 14 Dec 2016


Article type: Paper
DOI: 10.1039/C6DT04265A
Dalton Trans., 2017,46, 780-785

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    Synthesis and reactivity of tantalum corrole complexes

    J. A. Ziegler, H. L. Buckley and J. Arnold, Dalton Trans., 2017, 46, 780
    DOI: 10.1039/C6DT04265A

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