Abstract
The reactions of lanthanum and neodymium triphenylacetates with polydentate 6- and 18-membered N- and O-heterocyclic ligands give various types of mononuclear triphenylacetate complexes containing a polydentate auxiliary ligand (neutral or cationic and anionic): [Nd(Ph3CCOO)3(Me3TACH)] ∙ CHCl3 (II), [La(Ph3CCOO)4(Me3TACH)]–[NH4Me]+ (III), [La(Ph3CCOO)3(18-crown-6)] (IV), and [Nd(Ph3CCOO)2(18-crown-6)]+[Nd(Ph3CCOO)4]– (V) and binuclear complex [La2(Ph3CCOO)3-(Me3TACH)] ∙ 2C6H5CH3 (I) (CIF files CCDC no. 1968815 (I), 1968813 (II), 1968814 (III), 1968812 (IV), and 1968816 (V)). A minor change in the ionic radius, e.g., on going from La to Nd, results in a changed coordination environment. These changes can be followed using macrocyclic polydentate ligands.
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This study was supported by the Russian Science Foundation (project no. 17-13-01357).
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Translated by Z. Svitanko
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Vinogradov, A.A., Lysenko, K.A., Anan’ev, I.V. et al. Synthesis and Structural Diversity of Lanthanum and Neodymium Triphenylacetate Complexes with Trimethyltriazacyclohexane and Crown Ether. Russ J Coord Chem 46, 308–316 (2020). https://doi.org/10.1134/S1070328420050097
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DOI: https://doi.org/10.1134/S1070328420050097