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Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi)
The synthesis and characterisation is presented of the compounds [An(Tren(DMBS)){Pn(SiMe(3))(2)}] and [An(Tren(TIPS)){Pn(SiMe(3))(2)}] [Tren(DMBS)=N(CH(2)CH(2)NSiMe(2)Bu(t))(3), An=U, Pn=P, As, Sb, Bi; An=Th, Pn=P, As; Tren(TIPS)=N(CH(2)CH(2)NSiPr(i) (3))(3), An=U, Pn=P, As, Sb; An=Th, Pn=P, As, Sb]...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5814731/ https://www.ncbi.nlm.nih.gov/pubmed/29232498 http://dx.doi.org/10.1002/anie.201711824 |
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author | Rookes, Thomas M. Wildman, Elizabeth P. Balázs, Gábor Gardner, Benedict M. Wooles, Ashley J. Gregson, Matthew Tuna, Floriana Scheer, Manfred Liddle, Stephen T. |
author_facet | Rookes, Thomas M. Wildman, Elizabeth P. Balázs, Gábor Gardner, Benedict M. Wooles, Ashley J. Gregson, Matthew Tuna, Floriana Scheer, Manfred Liddle, Stephen T. |
author_sort | Rookes, Thomas M. |
collection | PubMed |
description | The synthesis and characterisation is presented of the compounds [An(Tren(DMBS)){Pn(SiMe(3))(2)}] and [An(Tren(TIPS)){Pn(SiMe(3))(2)}] [Tren(DMBS)=N(CH(2)CH(2)NSiMe(2)Bu(t))(3), An=U, Pn=P, As, Sb, Bi; An=Th, Pn=P, As; Tren(TIPS)=N(CH(2)CH(2)NSiPr(i) (3))(3), An=U, Pn=P, As, Sb; An=Th, Pn=P, As, Sb]. The U−Sb and Th−Sb moieties are unprecedented examples of any kind of An−Sb molecular bond, and the U−Bi bond is the first two‐centre‐two‐electron (2c–2e) one. The Th−Bi combination was too unstable to isolate, underscoring the fragility of these linkages. However, the U−Bi complex is the heaviest 2c–2e pairing of two elements involving an actinide on a macroscopic scale under ambient conditions, and this is exceeded only by An−An pairings prepared under cryogenic matrix isolation conditions. Thermolysis and photolysis experiments suggest that the U−Pn bonds degrade by homolytic bond cleavage, whereas the more redox‐robust thorium compounds engage in an acid–base/dehydrocoupling route. |
format | Online Article Text |
id | pubmed-5814731 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-58147312018-02-21 Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi) Rookes, Thomas M. Wildman, Elizabeth P. Balázs, Gábor Gardner, Benedict M. Wooles, Ashley J. Gregson, Matthew Tuna, Floriana Scheer, Manfred Liddle, Stephen T. Angew Chem Int Ed Engl Communications The synthesis and characterisation is presented of the compounds [An(Tren(DMBS)){Pn(SiMe(3))(2)}] and [An(Tren(TIPS)){Pn(SiMe(3))(2)}] [Tren(DMBS)=N(CH(2)CH(2)NSiMe(2)Bu(t))(3), An=U, Pn=P, As, Sb, Bi; An=Th, Pn=P, As; Tren(TIPS)=N(CH(2)CH(2)NSiPr(i) (3))(3), An=U, Pn=P, As, Sb; An=Th, Pn=P, As, Sb]. The U−Sb and Th−Sb moieties are unprecedented examples of any kind of An−Sb molecular bond, and the U−Bi bond is the first two‐centre‐two‐electron (2c–2e) one. The Th−Bi combination was too unstable to isolate, underscoring the fragility of these linkages. However, the U−Bi complex is the heaviest 2c–2e pairing of two elements involving an actinide on a macroscopic scale under ambient conditions, and this is exceeded only by An−An pairings prepared under cryogenic matrix isolation conditions. Thermolysis and photolysis experiments suggest that the U−Pn bonds degrade by homolytic bond cleavage, whereas the more redox‐robust thorium compounds engage in an acid–base/dehydrocoupling route. John Wiley and Sons Inc. 2017-12-29 2018-01-26 /pmc/articles/PMC5814731/ /pubmed/29232498 http://dx.doi.org/10.1002/anie.201711824 Text en © 2018 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution (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 | Communications Rookes, Thomas M. Wildman, Elizabeth P. Balázs, Gábor Gardner, Benedict M. Wooles, Ashley J. Gregson, Matthew Tuna, Floriana Scheer, Manfred Liddle, Stephen T. Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi) |
title | Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi) |
title_full | Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi) |
title_fullStr | Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi) |
title_full_unstemmed | Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi) |
title_short | Actinide–Pnictide (An−Pn) Bonds Spanning Non‐Metal, Metalloid, and Metal Combinations (An=U, Th; Pn=P, As, Sb, Bi) |
title_sort | actinide–pnictide (an−pn) bonds spanning non‐metal, metalloid, and metal combinations (an=u, th; pn=p, as, sb, bi) |
topic | Communications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5814731/ https://www.ncbi.nlm.nih.gov/pubmed/29232498 http://dx.doi.org/10.1002/anie.201711824 |
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