. 2015 Aug 26;71(Pt 9):1073–1076. doi: 10.1107/S2056989015015340

Table 1. Geometric parameters (, ) for the macrocyclic cavity in Fe²⁺ and Fe³⁺ macrocycles^a .

Parameter	Fe³⁺Me₂ L^b	Fe²⁺Me₂ L^c	Fe³⁺H₂ L dimer^d
FeN1	2.195(5)	2.2574(13)	2.151
FeN2	2.229(5)	2.2866(14)	2.155
FeN3	2.220(5)	2.2634(13)	2.234
FeN4	2.190(5)	2.2748(13)	2.245
N2_axFeN4_ax	166.8(3)	161.88(5)	161.6
N1_eqFeN3_eq	79.8(3)	78.36(5)	78.9

Notes: (a) where there are two independent molecules in the asymmetric unit, a mean value is given; (b) this work; (c) Hubin et al. (2000 ▸); (d) Hubin et al. (2003 ▸).

Table 1. Geometric parameters (, ) for the macrocyclic cavity in Fe2+ and Fe3+ macrocyclesa .

Table 1. Geometric parameters (, ) for the macrocyclic cavity in Fe²⁺ and Fe³⁺ macrocycles^a .