Fabrizio Ortu
Tuning coordination in s-block carbazol-9-Yl complexes
Ortu, Fabrizio; Moxey, Graeme J.; Blake, Alexander J.; Lewis, William; Kays, Deborah L.
Authors
Graeme J. Moxey
Alexander J. Blake
William Lewis
DEBORAH KAYS DEBORAH.KAYS@NOTTINGHAM.AC.UK
Professor of Inorganic Chemistry
Abstract
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 1,3,6,8-Tetra-tert-butylcarbazol-9-yl and 1,8-diaryl-3,6-di(tert-butyl)carbazol-9-yl ligands have been utilized in the synthesis of potassium and magnesium complexes. The potassium complexes (1,3,6,8-tBu4carb)K(THF)4 (1; carb=C12H4N), [(1,8-Xyl2-3,6-tBu2carb)K(THF)]2 (2; Xyl=3,5-Me2C6H3) and (1,8-Mes2-3,6-tBu2carb)K(THF)2 (3; Mes=2,4,6-Me3C6H2) were reacted with MgI2 to give the Hauser bases 1,3,6,8-tBu4carbMgI(THF)2 (4) and 1,8-Ar2-3,6-tBu2carbMgI(THF) (Ar=Xyl 5, Ar=Mes 6). Structural investigations of the potassium and magnesium derivatives highlight significant differences in the coordination motifs, which depend on the nature of the 1- and 8-substituents: 1,8-di(tert-butyl)-substituted ligands gave π-type compounds (1 and 4), in which the carbazolyl ligand acts as a multi-hapto donor, with the metal cations positioned below the coordination plane in a half-sandwich conformation, whereas the use of 1,8-diaryl substituted ligands gave σ-type complexes (2 and 6). Space-filling diagrams and percent buried volume calculations indicated that aryl-substituted carbazolyl ligands offer a steric cleft better suited to stabilization of low-coordinate magnesium complexes.
Citation
Ortu, F., Moxey, G. J., Blake, A. J., Lewis, W., & Kays, D. L. (2015). Tuning coordination in s-block carbazol-9-Yl complexes. Chemistry - A European Journal, 21(18), 6949-6956. https://doi.org/10.1002/chem.201406490
Journal Article Type | Article |
---|---|
Online Publication Date | Mar 17, 2015 |
Publication Date | Apr 27, 2015 |
Deposit Date | Oct 28, 2015 |
Publicly Available Date | Oct 28, 2015 |
Journal | Chemistry - A European Journal |
Print ISSN | 0947-6539 |
Electronic ISSN | 1521-3765 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 21 |
Issue | 18 |
Pages | 6949-6956 |
DOI | https://doi.org/10.1002/chem.201406490 |
Public URL | https://nottingham-repository.worktribe.com/output/747618 |
Publisher URL | http://onlinelibrary.wiley.com/doi/10.1002/chem.201406490/abstract |
Files
CEJ_Manuscript_DLKays.pdf
(509 Kb)
PDF
Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search