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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...

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Autores principales: Guschlbauer, Jannick, Vollgraff, Tobias, Finger, Lars H., Harms, Klaus, Sundermeyer, Jörg
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
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.
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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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