Table 2.

Mn K-edge XAS Near-Edge Properties of [Mn^IIIMn^IV(μ-O)₂(N4py)₂]³⁺(3), [Mn^II(N4py)(OTf)]⁺, [Mn^IV(O)(N4py)]²⁺ and other bis(μ-oxo)dimanganese(III,IV) complexes.

complex	edge energy (eV)	pre-edge energy (eV)	pre-edge peak heighta	reference
[MnIIIMnIV(μ-O)2(N4py)2]3+	6550.6	6541.4	0.074	b
Mn-catalase (MnIIIMnIV)	6549.2	~6540	NRc	55
[MnIIIMnIV(μ-O)2(phen)4]3+	6549.6	6539.6	NRc	56
[MnIIIMnIV(μ-O)2(pda)2]− d	6549.8	6540.4	NRc	21
[MnIV(O)(N4py)]2+	6550.8	6541.9	0.077	44
[MnII(N4py)(OTf)]+	6547.3	6540.6	0.042	44

^aTo permit comparison of pre-edge peak heights, each XAS spectrum was normalized with respect to the most intense fluorescence peak.

^bThis work.

^cNot reported.

^dpda²⁻ = picolyldiacetic acid.²¹