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Solvent-free thallium(I) tetrakis[3,5-bis(trifluoromethyl)phenyl]borate: crystal structure, supramolecular interactions and anisotropic thermal expansion

Sep 2026 · Acta Crystallographica Section C Structural Chemistry · Vol 82, pp. 619 - 626 · 0 citations · 8 references
Medicine

Abstract

The solvent-free structure of the thallium(I) salt of the weakly coordinating anion tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, Tl[BC32H12F24], exhibits short Tl⋯F contacts and a supramolecular architecture governed by C—H⋯F hydrogen bonds and weak F⋯F and C—F⋯π interactions. Disorder and tilting of the arene rings generate different close-contact motifs, giving rise to hinge-like intermolecular interactions and pronounced anisotropic thermal expansion along the crystallographic a and b axes.

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