“…This is shown in Fig. 4, where the position of the carbon, oxygen and iron atoms derived from the crystal structures of [Fe 3 (CO) 45 [Fe 3 (CO) 10 (CN-Bu t ) 2 ], 37 [Fe 3 (CO) 10 (CNBu t ){P(OMe) 3 }], 36 [Fe 3 (CO) 10 (µ-CNCF 3 )(PMe 3 )], 13 [Fe 3 (CO) 10 (µ-CNCF 3 ){P(OMe) 3 }] (both isomers), 13 4(a) shows the iron atoms and carbonyl ligand positions plotted for all the compounds in Table 4. The molecules have been aligned so that the S 10 axis through ligands 6 and 10 is orthogonal to the paper and the Fe 2 atoms are coincident.…”