1. Investigation into the properties of a ruthenium(polypyridyl)-NHC compound
- Author
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Pearson, James W., Endean, Riley T., Rasu, Loorthuraja, and Bergens, Steven H.
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Ruthenium -- Chemical properties ,Transition metal compounds -- Chemical properties ,Chemistry - Abstract
The asymmetric imidazolium salt [Ru[(dmbpy).sub.2][(bpip)]([PF.sub.6]).sub.3] (bpip = 1-benzyl-3-isopropyl-1H-imidazo[4,5-f][1,10]phenanthrolinium) was prepared by a four-step synthetic route. The isotopomer labelled with [.sup.13]C at the C2 position of bpip was prepared from 1,10-phenanthroline-5,6-diamine and triethyl orthoformate-(formyl-[.sup.13]C). Deprotonation at low temperatures in acetonitrile using [KO.sup.t]Bu and KHMDS were monitored by NMR to investigate the formation of the free N-heterocyclic carbene. Key words: ruthenium, polypyridyl, [.sup.13]C labelling, N-heterocyclic carbene, photocatalyst. Nous avons prepare le sel d'imidazolium asymetrique, le [Ru[(dmbpy).sub.2][(bpip)]([PF.sub.6]).sub.3] (bpip = 1-benzyl-3-isopropyl-1Himidazo [4,5f][1,10]phenanthrolinium), par une voie de synthese en quatre etapes. L'isotopomere marque au [.sup.13]C a la position C2 du ligand bpip a ete prepare a partir de la 1,10-phenanthroline-5,6-diamine et de l'orthoformiate d'ethyle-(formiate-[.sup.13]C). Nous avons suivi par RMN la deprotonation a basse temperature dans l'acetonitrile effectuee a l'aide du [KO.sup.t]Bu et du KHMDS afin d'etudier la formation du carbene N-heterocyclique libre. [Traduit par la Redaction] Mots-cles : ruthenium, polypyridyl, marquage au [.sup.13]C, carbene N-heterocyclique, photocatalyseur., Introduction A highly investigated method to store solar energy is artificial photosynthesis. (1,2) Water and sunlight are converted into [H.sub.2] and [O.sub.2], or water, sunlight, and [CO.sub.2] are converted into [...]
- Published
- 2021
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