Hydrogen-Bonded Supramolecular Architecture by Solvomorphism of Hexahydroxytriptindane: From a Rosette Network to a Rod Structure

Abstract

Triptindane derivative L bearing three sets of paradihydroxyl groups in C 3 arrangement was synthesized and characterized by NMR spectroscopy, mass spectroscopy, and Xray crystallography. Crystallization of L in water or various organic solvents yielded diversified three-dimensional (3D) supramolecular architectures, including a hexagonal rosette network, a C 4symmetric channel, and corrugated layers. These solvomorphs are consolidated by intermolecular O−H•••O hydrogen bonds involving exo-and endo-hydroxyl groups of triptindane L and the solvent molecules. In particular, the molecular arrangement of the exo-and endo-hydroxyl groups of L facilitates the formation of the three-dimensional hexagonal rosette network.

Synthesis and characterization of two metallo-hydrogen-bonded organic frameworks with diverse structures and properties

“…However, incorporating multiple different functional groups into a single molecule is challenging and limits the functional and structural diversity of HOFs. [18][19][20][21][22][23][24][25][26][27][28][29][30] To overcome this limitation, a subclass of HOFs called metallo-hydrogen-bonded organic frameworks (MHOFs) has been developed. [31][32][33][34][35] MHOFs are constructed from complexes that offer abundant geometric configurations, functional groups, and the possibility of incorporating open metal sites.…”