A dissipative assembly process is an out-ofequilibrium dynamic process driven by chemical fuels. Such processes play very important roles in different types of biochemical process in nature. Herein, a dissipative hydrogel system based on the multiple-carboxyl tetraphenylethylene MCTPE 1 and 1-ethyl-3-(3-(dimethylamino)propyl)carbodiimide (EDC) was constructed successfully. In the hydrogel system, an aqueous solution of MCTPE 1 could be converted into the hydrogel rapidly using EDC as the chemical fuel. After that, the obtained hydrogel began to dissolve back to the solution state slowly. On the basis of this chemical-fueldriven dissipative system, a writable in aqueous solution and selferasable hydrogel material was achieved.

A crown-shaped cyclotriveratrylene (CTV) analogue with persubstituted arene unitsnamely, cyclotrixylohydroquinoylene (CTX)was synthesized from tetrasubstituted o-xylohydroquinone. Importantly, a series of CTX derivatives were prepared by introducing second bridged methylene, phenylphosphine oxide, and dimethylsilyl at the middle rim, referred to as CTX­[CH 2 ], CTX­[P­(O)­Ph], and CTX­[SiMe 2 ], respectively, with the completely locked crown conformation, leading to the formation of unique C3-symmetric Chinese censer-shaped pocket structures. In addition, the water-soluble CTX­[CH 2 ] derivative (WCTX­[CH 2 ]) was synthesized from CTX­[CH 2 ] by simple oxidation reaction with the modification at the upper rim, and its host–guest interaction with methyl viologen in water was investigated.

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