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Updated: Sep 16, 2025
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Crystal structure and supra-molecular features of bis-{ethyl
Valeriia Halushchenko1, Oleksandr Korovin1, Natalya Rusakova1
1A. V. Bogatsky Physico-Chemical Institute of the National Academy of Sciences of Ukraine 86 Lyustdorfska doroga Odessa Ukraine.
Abstract:
The title lanthanum(III) complex, [La(Et-MPTA)2(NO3)3] {where Et-MPTA is ethyl 2-[1-methyl-3-(pyridin-2-yl)-1H-1,2,4-triazol-5-yl]acetate} or [La(C24H28N8O4)(NO3)3], crystallizes in the monoclinic space group C2/c (No. 15). The lanthanum atom is twelve-coordinate, bonded to two oxygen atoms from carboxyl-ate groups, four nitro-gen atoms from two pyridinyl-1,2,4-triazole ligands, and six oxygen atoms of three NO3 - anions. The coordination geometry around the lanthanum atom can be described as a distorted icosa-hedron. Supra-molecular features include π-stacking inter-actions between pyridyl and triazole rings and weak inter-molecular N-O⋯C inter-actions, which lead to the formation of layers parallel to the (101) plane.
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