Selected bond lengths [Å] and bond angles [°] for 2 and 5.

2		5
Bond lengths/Å
Fe(1)–N(1)	2.138(3)	Fe(1)–N(1)	2.099(4)
Fe(1)–N(2)	2.219(3)	Fe(1)–N(3)	2.367(4)
Fe(1)–N(3)	2.129(4)	Fe(1)–N(4)	2.095(4)
Fe(1)–N(4)	2.369(4)	Fe(1)–N(6)	2.277(4)
Fe(1)–O(1)	1.7959(6)	Fe(1)–O(1)	1.791(4)
Fe(1)–Cl(1)	2.2996(11)	Fe(1)–Cl(2)	2.4108(15)
		Fe(2)–N(7)	2.118(5)
		Fe(2)–N(9)	2.335(4)
		Fe(2)–N(10)	2.109(4)
		Fe(2)–N(12)	2.266(5)
		Fe(2)–O(1)	1.778(3)
		Fe(2)–Cl(2)	2.3871(15)
Bond angles/°
N(1)–Fe(1)–N(2)	77.13(13)	O(1)–Fe(1)–N(4)	107.04(16)
N(1)–Fe(1)–N(3)	154.13(14)	O(1)–Fe(1)–N(1)	104.37(17)
N(1)–Fe(1)–N(4)	86.66(15)	N(4)–Fe(1)–N(1)	148.57(17)
N(2)–Fe(1)–N(3)	77.00(13)	O(1)–Fe(1)–N(6)	95.06(17)
N(2)–Fe(1)–N(4)	77.98(13)	N(4)–Fe(1)–N(6)	88.78(17)
N(3)–Fe(1)–N(4)	88.27(15)	N(1)–Fe(1)–N(6)	87.47(17)
O(1)–Fe(1)–N(1)	89.90(9)	O(1)–Fe(1)–N(3)	172.24(17)
O(1)–Fe(1)–N(2)	93.93(9)	N(4)–Fe(1)–N(3)	73.92(15)
O(1)–Fe(1)–N(3)	91.58(10)	N(1)–Fe(1)–N(3)	74.82(16)
O(1)–Fe(1)–N(4)	171.73(10)	N(6)–Fe(1)–N(3)	77.22(16)
Cl(1)–Fe(1)–O(1)	100.87(4)	O(1)–Fe(1)–Cl(1)	99.78(13)
Cl(1)–Fe(1)–N(1)	101.77(10)	N(4)–Fe(1)–Cl(1)	87.58(13)
Cl(1)–Fe(1)–N(2)	165.17(10)	N(1)–Fe(1)–Cl(1)	88.14(13)
Cl(1)–Fe(1)–N(3)	103.29(10)	N(6)–Fe(1)–Cl(1)	165.15(13)
Cl(1)–Fe(1)–N(4)	87.20(10)	N(3)–Fe(1)–Cl(1)	87.93(12)
Fe(1)–O(1)–Fe(1_a)	180.00	O(1)–Fe(2)–N(7)	104.49(19)
		O(1)–Fe(2)–N(10)	106.50(17)
		N(7)–Fe(2)–N(10)	148.97(19)
		O(1)–Fe(2)–N(12)	94.76(18)
		N(7)–Fe(2)–N(12)	91.2(2)
		N(10)–Fe(2)–N(12)	84.8(2)
		O(1)–Fe(2)–N(9)	173.48(16)
		N(7)–Fe(2)–N(9)	73.88(19)
		N(10)–Fe(2)–N(9)	75.15(16)
		N(12)–Fe(2)–N(9)	79.04(17)
		O(1)–Fe(2)–Cl(2)	99.52(13)
		N(7)–Fe(2)–Cl(2)	90.24(15)
		N(10)–Fe(2)–Cl(2)	86.17(14)
		N(12)–Fe(2)–Cl(2)	164.80(15)
		N(9)–Fe(2)–Cl(2)	86.84(12)
		Fe(2)–O(1)–Fe(1)	161.1(2)