p-Block metal complexes with bis(pyrazol-1-yl)acetato ligands

Pflock S, Langer F, Reil M, Strinitz L, Lorenz R, Hubner EG, Burzlaff N (2022)

Publication Type: Journal article

Publication year: 2022

Journal

DOI: 10.1039/d1dt04040e

Abstract

The hetereoscorpionate ligands bis(pyrazol-1-yl)acetic acid (Hbpza) and bis(3,5-dimethylpyrazol-1-yl)acetic acid (Hbdmpza) are reacted with [Sn(OAc)(2)] or [Sn(acac)(2)] to yield the corresponding Sn(ii) complexes. A single crystal X-ray determination for the in solution monomeric complex [Sn(bpza)(2)] (1a) revealed a dinuclear molecular structure [Sn-2(bpza)(4)] (1b), with kappa(3)-N,N,O-coordinated bpza ligands at each of the Sn(ii) and two bpza ligands mu-bridging between the Sn(ii) centres. The molecular structure of [Sn(bdmpza)(2)] (2) exhibits a homoleptic bisligand complex with both ligands displaced by the free electron pair, which is proven by DFT calculations. Oxidation of complex 2 in an attempt to synthesize a homoleptic Sn(iv) complex leads to the formation of [Sn(bdmpza)F-3] (3). In addition, homoleptic bisligand gallium complexes [Ga(bdmpza)(2)][ClO4] (4) and [Ga(bpza)(2)][GaCl4] (5) were prepared and characterized by Ga-71 NMR and IR spectroscopy as well as by X-ray crystallography.

Authors with CRIS profile

Involved external institutions

Technische Universität Clausthal / Clausthal University of Technology Germany (DE)

How to cite

APA:

Pflock, S., Langer, F., Reil, M., Strinitz, L., Lorenz, R., Hubner, E.G., & Burzlaff, N. (2022). p-Block metal complexes with bis(pyrazol-1-yl)acetato ligands. Dalton Transactions. https://dx.doi.org/10.1039/d1dt04040e

MLA:

Pflock, Stephan, et al. "p-Block metal complexes with bis(pyrazol-1-yl)acetato ligands." Dalton Transactions (2022).

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