Matches in SemOpenAlex for { <https://semopenalex.org/work/W2925348517> ?p ?o ?g. }
- W2925348517 endingPage "5334" @default.
- W2925348517 startingPage "5325" @default.
- W2925348517 abstract "A series of Ln(II) and Ca(II) bis(alkyl) complexes with bulky benzhydryl ligands, [(p-tBu-C6H4)2CH]2M(Ln) (M = Sm, L = DME, n = 2 (1); M = Sm, Yb, Ca, L = TMEDA, n = 1 (2, 3, 4), were synthesized by the salt-metathesis reaction of MI2(THF)n (n = 0–2) and [(p-tBu-C6H4)2CH]−Na+. In complex 1, the benzhydryl ligands are bound to the metal center in η2-coordination mode. Unlike complex 1, in isomorphous complexes 3 and 4, due to the coordination unsaturation of the metal center, the both benzhydryl ligands coordinate to the metal in η3-fashion. In complex 2, one ligand is η3-coordinated while the second one is η4-coordinated to the Sm(II) ion. Complexes 2–4 demonstrated unprecedented thermal stability: no evidence of decomposition was observed after heating their solutions in C6D6 at 100 °C during 72 h. Complex 1 behaves differently: thermolysis in C6D6 solution at 75 °C results in total decomposition in 8 h. Addition of DME promotes decomposition of 2–4 and makes it feasible at 40 °C. Complexes 1–4 demonstrated high catalytic activity and excellent regio- and chemoselectivities in intermolecular hydrophosphination of double and triple C–C bonds with both primary and secondary phosphines. Complexes 2 and 3 enable addition of PhPH2 toward the internal C═C bond of Z- and E-stilbenes with 100% conversion under mild conditions. Double sequential hydrophosphination of phenylacetylene with Ph2PH and PhPH2 was realized due to the application of Yb(II) complex as a catalyst." @default.
- W2925348517 created "2019-04-11" @default.
- W2925348517 creator A5001564019 @default.
- W2925348517 creator A5010517105 @default.
- W2925348517 creator A5032055257 @default.
- W2925348517 creator A5049289774 @default.
- W2925348517 creator A5055932373 @default.
- W2925348517 creator A5072554887 @default.
- W2925348517 creator A5086637541 @default.
- W2925348517 date "2019-04-01" @default.
- W2925348517 modified "2023-10-01" @default.
- W2925348517 title "Thermally Stable Ln(II) and Ca(II) Bis(benzhydryl) Complexes: Excellent Precatalysts for Intermolecular Hydrophosphination of C–C Multiple Bonds" @default.
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