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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 monoclinicP21/nspace 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 stackviatwo 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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Intra- and intermolecular C—H...F hydrogen bonds in the crystal structure of 1,2-bis[2-(2,3,4,5-tetrafluorophenyl)ethynyl]benzene
The title molecule, C22H6F8, crystallizes in the monoclinic space groupP21/cwith two unique molecules in the asymmetric unit andZ= 8. Each molecule features a short intramolecularsp2-C—H...F hydrogen bond with H...F separations at 2.363 (14) and 2.270 (14) Å, corresponding to 91 and 87.5% of the sum of the van der Waals radii, and C—H...F angles of 158.3 (14) and 166.8 (14)°, respectively. Each molecule also forms an intermolecular bifurcated CH...(F)2interaction with H...F distances ranging from 2.500 (16) to 2.597 (17) Å.
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- Award ID(s):
- 1306284
- PAR ID:
- 10629300
- Publisher / Repository:
- International Union of Crystallography
- Date Published:
- Journal Name:
- Acta Crystallographica Section E Crystallographic Communications
- Volume:
- 80
- Issue:
- 12
- ISSN:
- 2056-9890
- Page Range / eLocation ID:
- 1298 to 1301
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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