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Updated: Jul 3, 2026
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
CRYSTAL STRUCTURES OF TROPONOID LIQUID-CRYSTALLINE COMPOUNDS: 5-CYANO-2-(4-OCTYLOXYBENZOYLAMINO)-TROPONE AND
Kanji Kubo1, Masashi Hashimoto2, Daiki Kuribayashi3
1Faculty of Engineering, Hokkai-Gakuen University, Asahimachi, Toyohira-ku, Sapporo 062-8605, JAPAN.
Abstract:
Crystal structures of 5‑cyano‑2‑(4‑octyloxybenzoylamino)tropone (1) and bis(5‑dodecyltropolonato)copper(II) (2) were elucidated by single‑crystal X‑ray analysis. The cya-notropone derivative 1 forms centrosymmetric dimers through intermolecular C-H···N interac-tions, and its 2‑(benzoylamino)tropone core adopts an almost planar conformation. Molecules of 1 assemble into a tilted layered structure via C-H···N, C-H···O, and π-π interactions. Complex 2 forms a 2:1 tropolonato-Cu(II) coordination unit with a tetragonally planar geometry, in which the Cu(II) ion lies on an inversion center and is coordinated by four oxygen atoms from two tropolonato ligands. The bis(tropolonato)copper(II) core is essentially planar, whereas the dodecyl chain adopts an all‑trans zigzag conformation, giving the molecule a subtly S‑shaped structure. Com-pound 2 also forms a tilted layered structure through intermolecular C-H···O and π-π interac-tions.
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