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Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates
Metalation of the anions in the ionic liquids DMPyr[SH] and DMPyr[SeH] (DMPyr=1,1‐dimethylpyrrolidinium) by trimethylgallium and trimethylindium is investigated. The reaction proceeds via pre‐coordination of [EH](−), methane elimination and formation of an unprecedented series of chalcogenido metala...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7874246/ https://www.ncbi.nlm.nih.gov/pubmed/33565735 http://dx.doi.org/10.1002/open.202000347 |
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author | Guschlbauer, Jannick Vollgraff, Tobias Finger, Lars H. Harms, Klaus Sundermeyer, Jörg |
author_facet | Guschlbauer, Jannick Vollgraff, Tobias Finger, Lars H. Harms, Klaus Sundermeyer, Jörg |
author_sort | Guschlbauer, Jannick |
collection | PubMed |
description | Metalation of the anions in the ionic liquids DMPyr[SH] and DMPyr[SeH] (DMPyr=1,1‐dimethylpyrrolidinium) by trimethylgallium and trimethylindium is investigated. The reaction proceeds via pre‐coordination of [EH](−), methane elimination and formation of an unprecedented series of chalcogenido metalates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se). These show the presences of dinuclear dianions with four‐membered ring structures displaying highly nucleophilic bridging chalcogenide ligands in their crystallographically determined molecular structures. Some representative reactions of these building blocks with amphoteric electrophiles were studied: Addition of two equivalents of E(SiMe(3))(2) (E=S, Se) to the indates DMPyr(2)[Me(2)In(μ (2)−S)](2) and DMPyr(2)[Me(2)In(μ(2)−Se)](2) leads to a cleavage of the ring, E silylation and formation of mononuclear, monoanionic indates DMPyr[Me(2)In(SSiMe(3))(2)], DMPyr[Me(2)In(SeSiMe(3))(2)], and even a mixed sulfido‐selenido dimethylindate DMPyr[Me(2)In(SSiMe(3))(SeSiMe(3))]. Reaction of DMPyr(2)[Me(2)In(μ(2)−S)](2) with two equivalents of Lewis acid Me(3)In leads to charge delocalization, ring expansion and formation of six‐membered ring DMPyr(3)[Me(2)In(μ (2)−S−InMe(3))](3). The latter is a key intermediate in the formation of dianionic sulfidoindate DMPyr(2)[(Me(2)In)(6)(μ (3)−S)(4)] displaying an unusual inverse heteroadamantane cage structure with four capping sulfido ligands. |
format | Online Article Text |
id | pubmed-7874246 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-78742462021-02-19 Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates Guschlbauer, Jannick Vollgraff, Tobias Finger, Lars H. Harms, Klaus Sundermeyer, Jörg ChemistryOpen Full Papers Metalation of the anions in the ionic liquids DMPyr[SH] and DMPyr[SeH] (DMPyr=1,1‐dimethylpyrrolidinium) by trimethylgallium and trimethylindium is investigated. The reaction proceeds via pre‐coordination of [EH](−), methane elimination and formation of an unprecedented series of chalcogenido metalates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se). These show the presences of dinuclear dianions with four‐membered ring structures displaying highly nucleophilic bridging chalcogenide ligands in their crystallographically determined molecular structures. Some representative reactions of these building blocks with amphoteric electrophiles were studied: Addition of two equivalents of E(SiMe(3))(2) (E=S, Se) to the indates DMPyr(2)[Me(2)In(μ (2)−S)](2) and DMPyr(2)[Me(2)In(μ(2)−Se)](2) leads to a cleavage of the ring, E silylation and formation of mononuclear, monoanionic indates DMPyr[Me(2)In(SSiMe(3))(2)], DMPyr[Me(2)In(SeSiMe(3))(2)], and even a mixed sulfido‐selenido dimethylindate DMPyr[Me(2)In(SSiMe(3))(SeSiMe(3))]. Reaction of DMPyr(2)[Me(2)In(μ(2)−S)](2) with two equivalents of Lewis acid Me(3)In leads to charge delocalization, ring expansion and formation of six‐membered ring DMPyr(3)[Me(2)In(μ (2)−S−InMe(3))](3). The latter is a key intermediate in the formation of dianionic sulfidoindate DMPyr(2)[(Me(2)In)(6)(μ (3)−S)(4)] displaying an unusual inverse heteroadamantane cage structure with four capping sulfido ligands. John Wiley and Sons Inc. 2021-02-10 /pmc/articles/PMC7874246/ /pubmed/33565735 http://dx.doi.org/10.1002/open.202000347 Text en © 2021 The Authors. Published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Full Papers Guschlbauer, Jannick Vollgraff, Tobias Finger, Lars H. Harms, Klaus Sundermeyer, Jörg Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates |
title | Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates |
title_full | Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates |
title_fullStr | Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates |
title_full_unstemmed | Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates |
title_short | Chalcogenido‐Dimethylgallates and ‐Indates DMPyr(2)[Me(2)M(μ(2)−E)](2) (M=Ga, In; E=S, Se): Building Blocks for Higher and Lower Order Chalcogenidoindates |
title_sort | chalcogenido‐dimethylgallates and ‐indates dmpyr(2)[me(2)m(μ(2)−e)](2) (m=ga, in; e=s, se): building blocks for higher and lower order chalcogenidoindates |
topic | Full Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7874246/ https://www.ncbi.nlm.nih.gov/pubmed/33565735 http://dx.doi.org/10.1002/open.202000347 |
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