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Nacnac-Cobalt-Mediated P4Transformations

Spitzer F, Grassl C, Balazs G, Maedl E, Keilwerth M, Zolnhofer E, Meyer K, Scheer M (2017)

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Publication Type: Journal article

Publication year: 2017

Journal

Book Volume: 23

Pages Range: 2716-2721

Journal Issue: 11

DOI: 10.1002/chem.201605451

Abstract

A comparison of P4activations mediated by low-valent β-diketiminato (L) cobalt complexes is presented. The formal Co⁰source [K2(L³Co)2(μ2:η¹,η¹-N2)] (1) reacts with P4to form a mixture of the monoanionic complexes [K(thf)6][(L³Co)2(μ2:η⁴,η⁴-P4)] (2) and [K(thf)6][(L³Co)2(μ2:η³,η³-P3)] (3). The analogue Co^Iprecursor [L³Co(tol)] (4 a), however, selectively yields the corresponding neutral derivative [(L³Co)2(μ2:η⁴,η⁴-P4)] (5 a). Compound 5 a undergoes thermal P atom loss to form the unprecedented complex [(L³Co)2(μ2:η³,η³-P3)] (6). The products 2 and 3 can be obtained selectively by an one-electron reduction of their neutral precursors 5 a and 6, respectively. The electrochemical behaviour of 2, 3, 5 a, and 6 is monitored by cyclic voltammetry and their magnetism is examined by SQUID measurements and the Evans method. The initial Co^I-mediated P4activation is not influenced by applying the structurally different ligands L¹and L², which is proven by the formation of the isostructural products [(LCo)2(μ2:η⁴,η⁴-P4)] [L=L³(5 a), L¹(5 b), L²(5 c)].

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APA:

Spitzer, F., Grassl, C., Balazs, G., Maedl, E., Keilwerth, M., Zolnhofer, E.,... Scheer, M. (2017). Nacnac-Cobalt-Mediated P4Transformations. Chemistry - A European Journal, 23(11), 2716-2721. https://doi.org/10.1002/chem.201605451

MLA:

Spitzer, Fabian, et al. "Nacnac-Cobalt-Mediated P4Transformations." Chemistry - A European Journal 23.11 (2017): 2716-2721.

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