A 1:1 flavone cocrystal with cyclic trimeric perfluoro-o-phenylenemercury

Autor: Egor M. Novikov, Raúl Castañeda, Marina S. Fonari, Tatiana V. Timofeeva
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Acta Crystallographica Section E: Crystallographic Communications, Vol 80, Iss 7, Pp 717-720 (2024)
Druh dokumentu: article
ISSN: 2056-9890
20569890
DOI: 10.1107/S2056989024005346
Popis: The title compound, systematic name tris(μ2-perfluoro-o-phenylene)(μ2-3-phenyl-4H-chromen-4-one)-triangulo-trimercury, [Hg3(C6F4)3(C15H10O2)], crystallizes in the monoclinic P21/n space group with one flavone (FLA) and one cyclic trimeric perfluoro-o-phenylenemercury (TPPM) molecule per asymmetric unit. The FLA molecule is located on one face of the TPPM acceptor and is linked in an asymmetric coordination of its carbonyl oxygen atom with two Hg centers of the TPPM macrocycle. The angular-shaped complexes pack in zigzag chains where they stack via two alternating TPPM–TPPM and FLA–FLA stacking patterns. The distance between the mean planes of the neighboring TPPM macrocycles in the stack is 3.445 (2) Å, and that between the benzo-γ-pyrone moieties of FLA is 3.328 (2) Å. The neighboring stacks are interdigitated through the shortened F...F, CH...F and CH...π contacts, forming a dense crystal structure.
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