Synthesis and Structural Characterization of a Metal Cluster and a Coordination Polymer Based on the [Mn₆(μ₄-O)₂]¹⁰⁺ Unit

Table 4

Bond valence sum (BVS)^a,b calculations for complexes (1 ⋅2.5H₂O)_∞ and (2 ⋅2MeCN)

	Complex 1			Complex 2
	Mn^II	Mn^III	Mn^IV	Mn^II	Mn^III	Mn^IV
Mn1	1.96	1.79	1.88	2.03	1.87	1.94
Mn2	3.20	2.92	3.07	3.21	2.94	3.08
Mn3	1.99	1.82	1.91	1.94	1.79	1.85
Mn4	1.86	1.70	1.79	1.96	1.81	1.87
Mn5	1.93	1.76	1.85	1.90	1.74	1.83
Mn6	3.21	2.94	3.09	3.22	2.94	3.09

^aThe bold value is the one closest to the charge for which it was calculated. ^bThe oxidation state is the nearest whole number to the bold value.