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Phenylacetylene and Carbon Dioxide Activation by an Organometallic Samarium Complex

LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, Route de Saclay, 91128 Palaiseau CEDEX, France
LPCNO, UMR 5215, Université de Toulouse, CNRS, INSA, UPS, 31077 Toulouse, France
Author to whom correspondence should be addressed.
Inorganics 2018, 6(3), 82;
Received: 3 July 2018 / Revised: 15 August 2018 / Accepted: 18 August 2018 / Published: 21 August 2018
(This article belongs to the Special Issue Metal Mediated Small Molecule Activation)
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Small molecule activation is a topic of growing importance and the use of low-valent f-elements to perform these reactions is nowadays well established. The complex Cptt2Sm(thf) (1, Cptt = 1,3-(tBu)2Cp) is shown to activate the alkyne C–H bond of phenylacetylene to form the Cptt2Sm(C≡C–Ph)(thf) complex. The subsequent reaction of this Sm(III) complex with CO2 leads to the CO2 insertion, yielding a dimeric [Cptt2Sm(O2C–C≡C–Ph)]2 complex (2), in which the carbon dioxide has been inserted in the Sm–C bond. Along with the experimental chemical structure analysis, theoretical calculations have been performed in order to rationalize the formation of 1 and 2. View Full-Text
Keywords: small molecule activation; samarium complexes; C–H activation small molecule activation; samarium complexes; C–H activation

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Goudy, V.; Xémard, M.; Karleskind, S.; Cordier, M.; Alvarez Lamsfus, C.; Maron, L.; Nocton, G. Phenylacetylene and Carbon Dioxide Activation by an Organometallic Samarium Complex. Inorganics 2018, 6, 82.

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