Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.ica.2004.06.003
DC Field | Value | |
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dc.title | The naphthylamine palladium(II) template induced E-Z isomerism of exocyclic vinyl group in five-membered P-N chelates: Detailed spectroscopic studies | |
dc.contributor.author | Liu, X. | |
dc.contributor.author | Selvaratnam, S. | |
dc.contributor.author | Mok, K.F. | |
dc.contributor.author | Leung, P.-H. | |
dc.date.accessioned | 2014-10-16T08:45:30Z | |
dc.date.available | 2014-10-16T08:45:30Z | |
dc.date.issued | 2004-11-15 | |
dc.identifier.citation | Liu, X., Selvaratnam, S., Mok, K.F., Leung, P.-H. (2004-11-15). The naphthylamine palladium(II) template induced E-Z isomerism of exocyclic vinyl group in five-membered P-N chelates: Detailed spectroscopic studies. Inorganica Chimica Acta 357 (14) : 4279-4285. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ica.2004.06.003 | |
dc.identifier.issn | 00201693 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/95243 | |
dc.description.abstract | The exocyclic C=C bond E-Z isomerism of chelating Ph2PC(=CHPh)- CH=NAr in organopalladium complexes containing orthometallated [(S)-1-(dimethylamino)ethyl]naphthalene is reported. In dilute solutions of non-coordinating CH2Cl2 or CHCl3, all the original E-isomers, in which the =CHPh phenyl rings are located trans to PPh2 moieties were partly converted to their Z-isomers. The isomerism was found to be dependent on temperature, concentration and solvent. At higher temperature, the Z-isomers were transformed completely back to their original E-isomers. Removal of the chiral auxiliaries of the E-Z mixtures by concentrated HCl, gave only the dichloro complexes of the E-isomers. The E-Z isomerization processes were well established by detailed spectroscopic studies, including 31P NMR, 1H NMR and 2D 1H-1H ROESY NMR studies. It is noteworthy that the dichloro complexes and free P-N ligands did not show such isomerization processes, indicating that the isomerization processes were triggered by the orthopalladated naphthylamine moiety. © 2004 Elsevier B.V. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.ica.2004.06.003 | |
dc.source | Scopus | |
dc.subject | 2D ROESY NMR spectroscopy | |
dc.subject | E-Z Isomerism | |
dc.subject | Imino-phosphine | |
dc.subject | Organopalladium complexes | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1016/j.ica.2004.06.003 | |
dc.description.sourcetitle | Inorganica Chimica Acta | |
dc.description.volume | 357 | |
dc.description.issue | 14 | |
dc.description.page | 4279-4285 | |
dc.description.coden | ICHAA | |
dc.identifier.isiut | 000225452100027 | |
Appears in Collections: | Staff Publications |
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