Figure 8.

Various cluster structures synthesized using ${\mathrm{Z}\mathrm{n}}_2{\left({\mathrm{C}\mathrm{O}}_2\right)}_4$ as the metal unit combined with different organic ligands. (a) The crystal structure of $\mathrm{M}\mathrm{O}\mathrm{F}\text{-}2$, (b) the structure of $\mathrm{Z}\mathrm{n}\text{-}\mathrm{B}\mathrm{A}$, (c) the structure of $\mathrm{Z}\mathrm{n}\text{-}\mathrm{m}\mathrm{T}\mathrm{A}$, (d) 15 nm high-precision line-space (HP LS) structure can be fabricated through photoetching technology by employing $\mathrm{Z}\mathrm{n}\text{-}\mathrm{m}\mathrm{T}\mathrm{A}$ as a photoresist. The atomic color coding in the structures is as follows: carbon is represented in gray, oxygen in red, nitrogen in purple, hydrogen in white, and zinc in blue [60]. (e) The diagram of a ligand exchange reaction resulting in $\mathrm{Z}\mathrm{n}\left(\mathrm{M}\mathrm{A}\right)\left(\mathrm{T}\mathrm{F}\mathrm{A}\right)$ synthesis [61].