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. 2019 Jun 4;7:365. doi: 10.3389/fchem.2019.00365

Figure 11.

Figure 11

(A) X-ray, 13C NMR, and IR data for CO of complexes 28. (B) Geometric parameters of complex 29 by X-ray analysis. (C) Geometric parameters of complexes 30-32 by DFT calculations. (D) Diagram between the frontier orbitals of a planar and bent α-ferrocenyl methylium ion.