Coordination Compounds

\(\mathrm{Na}_3\left[\mathrm{AlF}_6\right]\)

\(\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_3\left(\mathrm{NH}_3\right)_3\right]\)

\(\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+}\)

\(\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}\)