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Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry

The pentafluoroorthotellurate group (teflate, OTeF(5)) is able to form species, for which only the fluoride analogues are known. Despite nickel fluorides being widely investigated, nickel teflates have remained elusive for decades. By reaction of [NiCl(4)](2−) and neat ClOTeF(5), we have synthesized...

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Autores principales: Pérez‐Bitrián, Alberto, Hoffmann, Kurt F., Krause, Konstantin B., Thiele, Günther, Limberg, Christian, Riedel, Sebastian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9825845/
https://www.ncbi.nlm.nih.gov/pubmed/35851723
http://dx.doi.org/10.1002/chem.202202016
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author Pérez‐Bitrián, Alberto
Hoffmann, Kurt F.
Krause, Konstantin B.
Thiele, Günther
Limberg, Christian
Riedel, Sebastian
author_facet Pérez‐Bitrián, Alberto
Hoffmann, Kurt F.
Krause, Konstantin B.
Thiele, Günther
Limberg, Christian
Riedel, Sebastian
author_sort Pérez‐Bitrián, Alberto
collection PubMed
description The pentafluoroorthotellurate group (teflate, OTeF(5)) is able to form species, for which only the fluoride analogues are known. Despite nickel fluorides being widely investigated, nickel teflates have remained elusive for decades. By reaction of [NiCl(4)](2−) and neat ClOTeF(5), we have synthesized the homoleptic [Ni(OTeF(5))(4)](2−) anion, which presents a distorted tetrahedral structure, unlike the polymeric [NiF(4)](2−). This high‐spin complex has allowed the study of the electronic properties of the teflate group, which can be classified as a weak/medium‐field ligand, and therefore behaves as the fluoride analogue also in ligand‐field terms. The teflate ligands in [NEt(4)](2)[Ni(OTeF(5))(4)] are easily substituted, as shown by the formation of [Ni(NCMe)(6)][OTeF(5)](2) by dissolving it in acetonitrile. Nevertheless, careful reactions with other conventional ligands have enabled the crystallization of nickel teflate complexes with different coordination geometries, i.e. [NEt(4)](2)[trans‐Ni(OEt(2))(2)(OTeF(5))(4)] or [NEt(4)][Ni(bpyMe(2))(OTeF(5))(3)].
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spelling pubmed-98258452023-01-09 Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry Pérez‐Bitrián, Alberto Hoffmann, Kurt F. Krause, Konstantin B. Thiele, Günther Limberg, Christian Riedel, Sebastian Chemistry Research Articles The pentafluoroorthotellurate group (teflate, OTeF(5)) is able to form species, for which only the fluoride analogues are known. Despite nickel fluorides being widely investigated, nickel teflates have remained elusive for decades. By reaction of [NiCl(4)](2−) and neat ClOTeF(5), we have synthesized the homoleptic [Ni(OTeF(5))(4)](2−) anion, which presents a distorted tetrahedral structure, unlike the polymeric [NiF(4)](2−). This high‐spin complex has allowed the study of the electronic properties of the teflate group, which can be classified as a weak/medium‐field ligand, and therefore behaves as the fluoride analogue also in ligand‐field terms. The teflate ligands in [NEt(4)](2)[Ni(OTeF(5))(4)] are easily substituted, as shown by the formation of [Ni(NCMe)(6)][OTeF(5)](2) by dissolving it in acetonitrile. Nevertheless, careful reactions with other conventional ligands have enabled the crystallization of nickel teflate complexes with different coordination geometries, i.e. [NEt(4)](2)[trans‐Ni(OEt(2))(2)(OTeF(5))(4)] or [NEt(4)][Ni(bpyMe(2))(OTeF(5))(3)]. John Wiley and Sons Inc. 2022-09-08 2022-11-11 /pmc/articles/PMC9825845/ /pubmed/35851723 http://dx.doi.org/10.1002/chem.202202016 Text en © 2022 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Pérez‐Bitrián, Alberto
Hoffmann, Kurt F.
Krause, Konstantin B.
Thiele, Günther
Limberg, Christian
Riedel, Sebastian
Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry
title Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry
title_full Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry
title_fullStr Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry
title_full_unstemmed Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry
title_short Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry
title_sort unravelling the role of the pentafluoroorthotellurate group as a ligand in nickel chemistry
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9825845/
https://www.ncbi.nlm.nih.gov/pubmed/35851723
http://dx.doi.org/10.1002/chem.202202016
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