St Andrews Research Repository

St Andrews University Home
View Item 
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  • Register / Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

Methanediide formation via hydrogen elimination in magnesium versus aluminium hydride complexes of a sterically demanding bis(iminophosphoranyl)methanediide

Thumbnail
View/Open
Stasch_2017_Inorganics_Methanediide_CCBY_VoR.pdf (2.195Mb)
Date
06/2017
Author
Sindlinger, Christian P.
Lawrence, Samuel R.
Cordes, David B.
Slawin, Alexandra M. Z.
Stasch, Andreas
Keywords
Alane
Aluminium
Hydrogen formation
Magnesium
Magnesium hydride
Metal hydrides
Methanediides
N,N′-chelation
QD Chemistry
DAS
Metadata
Show full item record
Abstract
Substituted bis(iminophosphoranyl)methanes are CH acidic compounds that can form complexes with formally dianionic central carbon centres. The reaction of H2C(Ph2P=NDip)2 (≡ H2L), Dip = 2,6-diisopropylphenyl, with one equivalent of di-n-butylmagnesium afforded the methanide complex [HLMgnBu] 1. Treatment of complex 1 with phenylsilane in aromatic solvents at elevated temperatures afforded the methanediide complex [(LMg)2] 2 presumably via the MgH intermediate [(HLMgH)n] (n = 1 or 2). The reaction of 1 with LiAlH4 in diethyl ether yielded the AlH complex [HLAlH2] 3. Alternatively, this complex was also obtained from the reaction of H2L with AlH3∙NMe3. The molecular structures of [HLMgnBu] 1, [(LMg)2] 2, and [HLAlH2] 3 are reported. Complex 3 shows no sign of H2 elimination to a methanediide species at elevated temperatures in contrast to the facile elimination of the putative reaction intermediate [(HLMgH)n] (n = 1 or 2) to form [(LMg)2] 2. The chemical properties of complex 2 were investigated and this complex appears to be stable against coordination with strong donor molecules.
Citation
Sindlinger , C P , Lawrence , S R , Cordes , D B , Slawin , A M Z & Stasch , A 2017 , ' Methanediide formation via hydrogen elimination in magnesium versus aluminium hydride complexes of a sterically demanding bis(iminophosphoranyl)methanediide ' , Inorganics , vol. 5 , no. 2 . https://doi.org/10.3390/inorganics5020029
Publication
Inorganics
Status
Peer reviewed
DOI
https://doi.org/10.3390/inorganics5020029
ISSN
2304-6740
Type
Journal article
Rights
© 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Collections
  • University of St Andrews Research
URL
http://www.mdpi.com/2304-6740/5/2/29/s1
URI
http://hdl.handle.net/10023/10654

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

Advanced Search

Browse

All of RepositoryCommunities & CollectionsBy Issue DateNamesTitlesSubjectsClassificationTypeFunderThis CollectionBy Issue DateNamesTitlesSubjectsClassificationTypeFunder

My Account

Login

Open Access

To find out how you can benefit from open access to research, see our library web pages and Open Access blog. For open access help contact: openaccess@st-andrews.ac.uk.

Accessibility

Read our Accessibility statement.

How to submit research papers

The full text of research papers can be submitted to the repository via Pure, the University's research information system. For help see our guide: How to deposit in Pure.

Electronic thesis deposit

Help with deposit.

Repository help

For repository help contact: Digital-Repository@st-andrews.ac.uk.

Give Feedback

Cookie policy

This site may use cookies. Please see Terms and Conditions.

Usage statistics

COUNTER-compliant statistics on downloads from the repository are available from the IRUS-UK Service. Contact us for information.

© University of St Andrews Library

University of St Andrews is a charity registered in Scotland, No SC013532.

  • Facebook
  • Twitter