Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Mn3(OAc)6·CH3CN: a porous dehydrated manganese(II) acetate
AU - Fielden, J
AU - Kögerler, P
PY - 2009
Y1 - 2009
N2 - The crystal structure of a new form of dehydrated manganese(II) acetate, poly[[hexa-[mu]3-acetato-trimanganese(II)] acetonitrile solvate], [Mn3(CH3COO)6]·CH3CNn, (I), reveals a three-dimensional polymeric structure based on an Mn3 trimer. The Mn3 asymmetric unit contains three crystallographically independent Mn positions, comprising a seven-coordinate center sharing a mirror plane with a six-coordinate center, and another six-coordinate atom located on an inversion center. Two of the four crystallographically independent acetate (OAc) ligands, as well as the acetonitrile solvent molecule, are also located on the mirror plane. The Mn atoms are connected by a mixture of Mn-O-Mn and Mn-OCO-Mn bridging modes, giving rise to face- and corner-sharing interactions between manganese polyhedra within the trimers, and edge- and corner-sharing connections between the trimers. The network contains substantial pores which are tightly filled by crystallographically located acetonitrile molecules. This structure represents the first porous structurally characterized phase of anhydrous manganese(II) acetate and as such it is compared with the closely related densely packed anhydrous manganese(II) acetate phase, solvent-free [beta]-Mn(OAc)2.
AB - The crystal structure of a new form of dehydrated manganese(II) acetate, poly[[hexa-[mu]3-acetato-trimanganese(II)] acetonitrile solvate], [Mn3(CH3COO)6]·CH3CNn, (I), reveals a three-dimensional polymeric structure based on an Mn3 trimer. The Mn3 asymmetric unit contains three crystallographically independent Mn positions, comprising a seven-coordinate center sharing a mirror plane with a six-coordinate center, and another six-coordinate atom located on an inversion center. Two of the four crystallographically independent acetate (OAc) ligands, as well as the acetonitrile solvent molecule, are also located on the mirror plane. The Mn atoms are connected by a mixture of Mn-O-Mn and Mn-OCO-Mn bridging modes, giving rise to face- and corner-sharing interactions between manganese polyhedra within the trimers, and edge- and corner-sharing connections between the trimers. The network contains substantial pores which are tightly filled by crystallographically located acetonitrile molecules. This structure represents the first porous structurally characterized phase of anhydrous manganese(II) acetate and as such it is compared with the closely related densely packed anhydrous manganese(II) acetate phase, solvent-free [beta]-Mn(OAc)2.
U2 - 10.1107/S0108270109014693
DO - 10.1107/S0108270109014693
M3 - Journal article
VL - C65
SP - m224-m227
JO - Acta Crystallographica Section C: Crystal Structure Communications
JF - Acta Crystallographica Section C: Crystal Structure Communications
SN - 0108-2701
ER -