H. Zakaria, D. M. Lyubov, A. V. Vologzhanina, A. A. Trifonov, “Synthesis, structures and reactivity of Sc3+ and Y3+ bis(alkyl) complexes coordinated by [O,N,O] pincer amido ligand”, Mendeleev Commun., 2026, Volume 36, Issue 3,Pages 279

Communications

Synthesis, structures and reactivity of Sc³⁺ and Y³⁺ bis(alkyl) complexes coordinated by [O,N,O] pincer amido ligand

H. Zakaria^a, D. M. Lyubov^a, A. V. Vologzhanina^b, A. A. Trifonov^ab

^a G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 603950 Nizhnii Novgorod, Russian Federation
^b A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russian Federation

Abstract: The alkane elimination reactions between Ln(CH₂SiMe₃)₃(THF)₂ (Ln = Sc, Y) and substituted diphenylamine, (2-Prⁱ₂PO-4-MeC₆H₃)₂NH ([O,N,O]H), afford stable pincer bis(alkyl) complexes [O,N,O]Ln(CH₂SiMe₃)₂ (Ln = Sc, Y), while (2-Prⁱ₂PS-4-MeC₆H₃)₂NH was found to be inert. X-ray analysis revealed intramolecular coordination of both Prⁱ₂PO groups with Ln³⁺ ions in these complexes. The yttrium complex proved to be an efficient pre-catalyst for hydrophosphination of styrene and phenylacetylene, as well as for isoprene and rac-lactide polymerization.

Keywords: rare earths, scandium complexes, yttrium complexes, alkyl complexes, pincer ligands, isoprene polymerization, hydrophosphination, lactide polymerization.

Received: 22.10.2025
Accepted: 15.12.2025

Language: English

DOI: 10.71267/mencom.7951

	*Supplementary materials:*
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