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Crystal field arguments to explain the trans labilisation within transition metal–borane complexes
There has been great interest in metal–borane complexes following the discovery of metallaboratrane complexes in 1999. These complexes contain unusual Z-type (σ-acceptor) coordination of borane functional groups and have been shown to provide unexpected coordination geometries and properties for a t...
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Published in: | Transition metal chemistry (Weinheim) 2010-03, Vol.35 (2), p.221-228 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | There has been great interest in metal–borane complexes following the discovery of metallaboratrane complexes in 1999. These complexes contain unusual Z-type (σ-acceptor) coordination of borane functional groups and have been shown to provide unexpected coordination geometries and properties for a transition metal in a particular oxidation state. Additionally, such ligands exhibit unusually high
trans
influences only in certain geometries. Herein, a simple qualitative description, based on crystal field theory arguments, is presented for the explanation of the geometries and atypical
trans
labilisations observed.
Graphical Abstract
Trans
labilisation: This discussion highlights the geometries observed within metal–borane complexes and discusses the origin of the labilisation of ligands in the site
trans
to boron. |
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ISSN: | 0340-4285 1572-901X |
DOI: | 10.1007/s11243-009-9317-6 |