Fig. 2: Optimization and synthesis of HOM-1.
From: Hierarchical organic microspheres from diverse molecular building blocks
a Scheme of the double condensation reaction of 1 and 2. b, c SEM of HOM-1 (the left scale bar is 4 μm and the right scale bar is 1 μm). d Size distribution of HOM-1 measured from DLS. e 1H NMR spectrum of 4. f Liquid-state 13C NMR spectrum of 4. g Solid-state 13C NMR spectrum of HOM-1 (BACT) and 3 (TACT). h Structural differences between 3 and 4. Carbon signals from the TP motif are assigned. i PXRD pattern for 4 assembled in different solvent combinations. j MD simulation for the ideal model of HOM-1 containing 128 pre-ordered 4 molecules in the DMSO-MeOH (2978 molecules for each) combination.Cryo-EM image of thread (k) and measurement of lattice spacing (l). The scale bar is 100 nm. m Cryo-EM image of entangled fibers. The scale bar is 100 nm. n SEM image of entangled fiber. The scale bar is 100 nm. o The four main stages during the hierarchically assembled process of 4 through HOM-1.
