Cargando…

A General Pathway to Heterobimetallic Triple‐Decker Complexes

A systematic study on the reactivity of the triple‐decker complex [(Cp’’’Co)(2)(μ,η(4):η(4)‐C(7)H(8))] (A) (Cp’’’=1,2,4‐tritertbutyl‐cyclopentadienyl) towards sandwich complexes containing cyclo‐P(3), cyclo‐P(4), and cyclo‐P(5) ligands under mild conditions is presented. The heterobimetallic triple‐...

Descripción completa

Detalles Bibliográficos
Autores principales: Piesch, Martin, Dielmann, Fabian, Reichl, Stephan, Scheer, Manfred
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7028134/
https://www.ncbi.nlm.nih.gov/pubmed/31860738
http://dx.doi.org/10.1002/chem.201905240
_version_ 1783498965538308096
author Piesch, Martin
Dielmann, Fabian
Reichl, Stephan
Scheer, Manfred
author_facet Piesch, Martin
Dielmann, Fabian
Reichl, Stephan
Scheer, Manfred
author_sort Piesch, Martin
collection PubMed
description A systematic study on the reactivity of the triple‐decker complex [(Cp’’’Co)(2)(μ,η(4):η(4)‐C(7)H(8))] (A) (Cp’’’=1,2,4‐tritertbutyl‐cyclopentadienyl) towards sandwich complexes containing cyclo‐P(3), cyclo‐P(4), and cyclo‐P(5) ligands under mild conditions is presented. The heterobimetallic triple‐decker sandwich complexes [(Cp*Fe)(Cp’’’Co)(μ,η(5):η(4)‐P(5))] (1) and [(Cp’’’Co)(Cp’’’Ni)(μ,η(3):η(3)‐P(3))] (3) (Cp*=1,2,3,4,5‐pentamethylcyclopentadienyl) were synthesized and fully characterized. In solution, these complexes exhibit a unique fluxional behavior, which was investigated by variable temperature NMR spectroscopy. The dynamic processes can be blocked by coordination to {W(CO)(5)} fragments, leading to the complexes [(Cp*Fe)(Cp’’’Co)(μ(3),η(5):η(4):η(1)‐P(5)){W(CO)(5)}] (2 a), [(Cp*Fe)(Cp’’’Co)(μ(4),η(5):η(4):η(1):η(1)‐P(5)){(W(CO)(5))(2)}] (2 b), and [(Cp’’’Co)(Cp’’’Ni)(μ(3),η(3):η(2):η(1)‐P(3)){W(CO)(5)}] (4), respectively. The thermolysis of 3 leads to the tetrahedrane complex [(Cp’’’Ni)(2)(μ,η(2):η(2)‐P(2))] (5). All compounds were fully characterized using single‐crystal X‐ray structure analysis, NMR spectroscopy, mass spectrometry, and elemental analysis.
format Online
Article
Text
id pubmed-7028134
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-70281342020-02-25 A General Pathway to Heterobimetallic Triple‐Decker Complexes Piesch, Martin Dielmann, Fabian Reichl, Stephan Scheer, Manfred Chemistry Communications A systematic study on the reactivity of the triple‐decker complex [(Cp’’’Co)(2)(μ,η(4):η(4)‐C(7)H(8))] (A) (Cp’’’=1,2,4‐tritertbutyl‐cyclopentadienyl) towards sandwich complexes containing cyclo‐P(3), cyclo‐P(4), and cyclo‐P(5) ligands under mild conditions is presented. The heterobimetallic triple‐decker sandwich complexes [(Cp*Fe)(Cp’’’Co)(μ,η(5):η(4)‐P(5))] (1) and [(Cp’’’Co)(Cp’’’Ni)(μ,η(3):η(3)‐P(3))] (3) (Cp*=1,2,3,4,5‐pentamethylcyclopentadienyl) were synthesized and fully characterized. In solution, these complexes exhibit a unique fluxional behavior, which was investigated by variable temperature NMR spectroscopy. The dynamic processes can be blocked by coordination to {W(CO)(5)} fragments, leading to the complexes [(Cp*Fe)(Cp’’’Co)(μ(3),η(5):η(4):η(1)‐P(5)){W(CO)(5)}] (2 a), [(Cp*Fe)(Cp’’’Co)(μ(4),η(5):η(4):η(1):η(1)‐P(5)){(W(CO)(5))(2)}] (2 b), and [(Cp’’’Co)(Cp’’’Ni)(μ(3),η(3):η(2):η(1)‐P(3)){W(CO)(5)}] (4), respectively. The thermolysis of 3 leads to the tetrahedrane complex [(Cp’’’Ni)(2)(μ,η(2):η(2)‐P(2))] (5). All compounds were fully characterized using single‐crystal X‐ray structure analysis, NMR spectroscopy, mass spectrometry, and elemental analysis. John Wiley and Sons Inc. 2020-01-30 2020-02-03 /pmc/articles/PMC7028134/ /pubmed/31860738 http://dx.doi.org/10.1002/chem.201905240 Text en © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Communications
Piesch, Martin
Dielmann, Fabian
Reichl, Stephan
Scheer, Manfred
A General Pathway to Heterobimetallic Triple‐Decker Complexes
title A General Pathway to Heterobimetallic Triple‐Decker Complexes
title_full A General Pathway to Heterobimetallic Triple‐Decker Complexes
title_fullStr A General Pathway to Heterobimetallic Triple‐Decker Complexes
title_full_unstemmed A General Pathway to Heterobimetallic Triple‐Decker Complexes
title_short A General Pathway to Heterobimetallic Triple‐Decker Complexes
title_sort general pathway to heterobimetallic triple‐decker complexes
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7028134/
https://www.ncbi.nlm.nih.gov/pubmed/31860738
http://dx.doi.org/10.1002/chem.201905240
work_keys_str_mv AT pieschmartin ageneralpathwaytoheterobimetallictripledeckercomplexes
AT dielmannfabian ageneralpathwaytoheterobimetallictripledeckercomplexes
AT reichlstephan ageneralpathwaytoheterobimetallictripledeckercomplexes
AT scheermanfred ageneralpathwaytoheterobimetallictripledeckercomplexes
AT pieschmartin generalpathwaytoheterobimetallictripledeckercomplexes
AT dielmannfabian generalpathwaytoheterobimetallictripledeckercomplexes
AT reichlstephan generalpathwaytoheterobimetallictripledeckercomplexes
AT scheermanfred generalpathwaytoheterobimetallictripledeckercomplexes