Nkabyo, Henry A., Procacci, Barbara orcid.org/0000-0001-7044-0560, Duckett, Simon B. orcid.org/0000-0002-9788-6615 et al. (1 more author) (2019) Reversible photo-isomerization of:cis -[Pd(L-κ S, O)2] (HL = N, N -diethyl- N ′-1-naphthoylthiourea) to trans -[Pd(L-κ S, O)2] and the unprecedented formation of trans -[Pd(L-κ S, N)2] in solution. Dalton Transactions. pp. 17241-17251. ISSN 1477-9226
Abstract
Upon ex situ UV-visible light irradiation, complex cis-bis(N,N-diethyl-N′-naphthoylthioureato)-palladium(ii), cis-[Pd(L-κS,O)2], undergoes isomerization in acetonitrile-d3 and chloroform-d to yield trans-[Pd(L-κS,O)2] which then rearranges thermally to novel trans-[Pd(L-κS,N)2] prior to reverting thermally to the cis isomer in the absence of light. The thermal isomerization rate is highly solvent dependent and harnessed to enable each of these three geometric isomers to be isolated and characterized by 1H NMR spectroscopy, X-ray crystallography, melting point and thermal analysis. The formation of the trans-[Pd(L-κS,N)2] isomer as part of this isomerization has only been observed with the sterically demanding cis-bis(N,N-diethyl-N′-(naphthoylthioureato)palladium(ii) precursor based on our knowledge to date. In situ irradiation with monochromatic laser light (λ = 355 nm) coupled to 1H NMR spectroscopy of solutions of cis-[Pd(L-κS,O)2] in acetonitrile-d3 supports the ex situ photo-induced isomerization experiments.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Royal Society of Chemistry 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 20 Jan 2020 12:00 |
Last Modified: | 16 Oct 2024 16:17 |
Published Version: | https://doi.org/10.1039/c9dt03672e |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1039/c9dt03672e |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:155807 |