Connection of Supramolecular Clusters with Triphenylmethylamine Disulfonate

Graduate School of Engineering, Osaka University
â—‹Shinji Uehara Norimitsu Tohnai Ichiro Hisaki Mikiji Miyata

Hydrogen-bonded supramolecular synthons represent a primary tool for crystal engineering. Recently, we have reported that organic salts composed of four carboxylic acids and four bulky triphenylmethylamines construct a cluster like a cubane through hydrogen bonds. Moreover, we succeeded in forming clusters with ammonium monosulfonates (Fig.1a), which resemble those of the carboxylate, possess discrete hydrogen-bonded networks, and shape such as a tetrapod. Here we show a connection of the supramolecular clusters with ammonium disulfonates. The connection has two kinds of networks. The one is 4-fold diamondoid network (Fig.1b). The crystals have large channel-type spaces where various organic molecules are included. The other is interwoven network (Fig.1c). The disulfonic acid molecules in latter network are considerably bent by packing force.