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Mendeleev Commun., 2025 Volume 35, Issue 3, Pages 303–306 (Mi mendc6265)

Communications

Non-covalent intramolecular Dy···F interactions in tris(pentafluorophenyl)methanolate dysprosium(III) complexes

A. N. Selikhovab, Yu. V. Nelyubinab, A. A. Trifonovab

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

Abstract: The reactions of (C6F5)3COH with (o -Me2NC6H4CH2)3Dy affords two new Dy3+ tris(alkoxy) complexes isolated in the form of pyridine and NMe3 adducts [(C6F5)3CO]3Dy(L)n (L = py, n = 2 and L = Me3N, n = 1). The first complexes adopts trigonal bipyramidal geometry while the second one is and almost ideal trigonal pyramidal. A characteristic feature of the latter formally four-coordinate complex is the presence of non-covalent intramolecular Dy⋯F interactions with each of (C6F5)3CO- ligands reflected in short contacts, while in the former five-coordinate complex, such interactions were not detected.

Keywords: lanthanides, dysprosium, alkoxide anion, tris(pentafluorophenyl)methanolate, metal–fluorine interactions.

Received: 07.11.2024
Accepted: 13.12.2024

Language: English

DOI: 10.71267/mencom.7676



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© Steklov Math. Inst. of RAS, 2025