Fig. 3. (a) Coordination environment of Co(ii), packing of {[Co(3,4pba)2-(H2O)]·1/2DMF·H2O}n; and pictures of powdered samples after exposure to different solvents. Figures adapted from ref. 126. (b) Structure of Co3[Co(CN)6]2 and TEM image of the nanoparticles; the colour of Co3[Co(CN)6]2 films changes from pink to purple gradually with an increasing ethanol concentration gradient. Adapted with permission from ref. 96.
