<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Avello, Marta G.</style></author><author><style face="normal" font="default" size="100%">Singh, Geetika</style></author><author><style face="normal" font="default" size="100%">Truong-Phuoc, Lai</style></author><author><style face="normal" font="default" size="100%">Vidal, Loic</style></author><author><style face="normal" font="default" size="100%">Papaefthimiou, Vasiliki</style></author><author><style face="normal" font="default" size="100%">Chesse, Matthieu</style></author><author><style face="normal" font="default" size="100%">Gruber, Nathalie</style></author><author><style face="normal" font="default" size="100%">Chetcuti, Michael J.</style></author><author><style face="normal" font="default" size="100%">Vanka, Kumar</style></author><author><style face="normal" font="default" size="100%">Ritleng, Vincent</style></author><author><style face="normal" font="default" size="100%">Pham-Huu, Cuong</style></author><author><style face="normal" font="default" size="100%">Michon, Christophe</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">(NHC-olefin)-nickel(0) nanoparticles: an efficient and selective catalyst for hydrogenation reactions at low temperature and pressure</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Catalysis</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alkenes</style></keyword><keyword><style  face="normal" font="default" size="100%">Alkynes</style></keyword><keyword><style  face="normal" font="default" size="100%">heterocycles</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrogenation</style></keyword><keyword><style  face="normal" font="default" size="100%">imines</style></keyword><keyword><style  face="normal" font="default" size="100%">N -heterocyclic carbene ligand</style></keyword><keyword><style  face="normal" font="default" size="100%">nanocatalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Nickel</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2026</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JAN</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">453</style></volume><pages><style face="normal" font="default" size="100%">116487</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	The reduction of a NHC-cinnamyl nickel(II) organometallic complex through the use of different MeMgBr or MeMgCl reagents led to two types of NHC-olefin-coordinated nickel nanoparticles. Both of these unsupported nickel-NHC based nanomaterials behaved under hydrogen pressure as effective and selective catalysts operating at low temperature (&amp;lt;= 80 degrees C), pressure (&amp;lt;= 20 bar) and loading (&amp;lt;= 6 mol%) for the reductions of broad scopes of alkenes, alkynes, imines and heterocycles, including a challenging tetra-substituted alkene. Among these two nickel-NHC nanocatalysts, the one generated with MeMgCl showed a significant high catalytic activity with high yields and could stand the comparison with Raney nickel and state-of-the-art nickel nanocatalysts. For example, by studying the hydrogenation of 1-phenylcyclohexene in ethanol at 60 degrees C under 10 bar of H2, 3 mol% of this catalyst achieved the reaction within a single hour on a 5 mmol/0.8 g substrate scale with a yield of 96 %, a turnover number (TON) of 32 and a turnover frequency (TOF) of 32. Characterizations confirmed the coordination of the NHC-olefin ligands to the nickel nanoparticles, the reduced state of the nickel and the (poly-) crystallinity of the nanoparticles.&lt;/p&gt;
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	Foreign&lt;/p&gt;
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	6.5&lt;/p&gt;
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