Fig. 2 | Nature Communications

Fig. 2

From: Binder driven self-assembly of metal-organic cubes towards functional hydrogels

Fig. 2

Crystal structure of 1 and self-assembly of MOC with NH4+ binder. a Structure of (Ga8(ImDC)12)12 cube (MOC). b Two MOCs are connected to each other via intermolecular H-bonding with four DMA cations. c 3D supramolecular packing of the MOCs in 1, where each cube is connected to six neighbouring cubes through DMA cations. d Space filling structure of 1 showing the window of the 3D channels. e Formation of MOC-G1 hydrogel from aq. solution of MOCs in presence of NH4+ binder. f Schematic showing self-assembly of MOC with NH4+ binder through charge-assisted H-bonding interaction. g Oscillatory strain measurements (frequency = 1.0 rad/s) of MOC-G1, the squares (black) and circles (red) indicate storage (G′) and loss modulus (G′′), respectively. h, i FESEM images of MOC-G1 xerogel showing the formation of nanotubes with rectangular cross-section, h scale bar = 2 μm and i scale bar = 1 μm. j TEM image of MOC-G1 xerogel showing the formation of nanotubes (scale bar = 500 nm). Inset is showing opening of the hollow nanotube

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