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

الملخص EN

A new 1-D coordination polymer {[Mn6O2(O2CMe)10(H2O)4]⋅2.5H2O}∞ (1⋅2.5H2O)∞ and the cluster [Mn6O2(O2(O2CPh)10 (py)2(MeCN)(H2O)]⋅2MeCN (2⋅2MeCN) are reported.

Both compounds were synthesized by room temperature reactions of [Mn3(μ3-O)(O2CR)6(L)2(L′)] (R = Me, L = L′ = py, (1⋅2.5H2O)∞; R = Ph, L = py, L′ = H2O, 2⋅2MeCN) in the presence of 3-hydroxymethylpyridine (3hmpH) in acetonitrile.

The structures of these complexes are based on hexanuclear mixed-valent manganese carboxylate clusters containing the [Mn4IIMn2III(μ4-O)2]10+ structural core.

(1⋅2.5H2O)∞ consists of zigzag chain polymers constructed from [Mn6O2(O2CMe)10(H2O)4] repeating units linked through acetate ligands, whereas 2⋅2MeCN comprises a discrete Mn6-benzoate cluster.