Table 2.

Selected Geometrical Parameters for the Cations of [Fe^II(S^Me2N₄(tren))](PF₆) (1), [Fe^III(S^Me2N₄(tren))]₂(μ-O)(PF₆)2•MeCN (3), [Fe^III(S^Me2N₄(tren))(MeCN)](BPh₄)₂•MeCN (4), and [Fe^II(S^Me2N₄(tren-Et₄))](PF₆)(5)^a

	1	3	4	5
Fe(1)–S(1)	2.3281(9)	2.317(4)	2.146(1)	2.3171(9)
Fe(1)–N(1)	2.091(3)	2.186(10)	1.912(2)	2.104(3)
Fe(1)–N(2)	2.268(3)	2.239(10)	2.026(2)	2.227(3)
Fe(1)–N(3)	2.131(3)	2.208(10)	2.002(2)	2.219(3)
Fe(1)–N(4)	2.117(3)	2.173(10)	2.018(2)	2.220(3)
Fe(1)–O(1)	N/A	1.807(8)	N/A	N/A
S(1)–Fe(1)–N(2)	163.02(7)	154.5(4)	171.96(6)	161.53(7)
S(1)–Fe(1)–N(1)	84.02(8)	80.4(3)	86.59(6)	83.41(7)
N(1)–Fe(1)–X	N/A	178.6(4)	177.31(8)	N/A
Fe(1)–O(1)–Fe(2)	N/A	155.3(5)	N/A	N/A

^aBond lengths and bond angles are given in Å and deg, respectively.