Mn-3(OAc)(6)center dot CH3CN: a porous dehydrated manganese(II) acetate

TitleMn-3(OAc)(6)center dot CH3CN: a porous dehydrated manganese(II) acetate
Publication TypeJournal Article
Year of Publication2009
AuthorsFielden J, Kogerler P
Journal TitleActa Crystallographica Section C-Crystal Structure Communications
Volume65
PagesM224-M227
Date Published06/01
ISBN Number0108-2701
Accession NumberISI:000267615800004
Keywordscrystal-structures, design, diamond framework, formate, gas sorption, magnet, metal-organic framework, ordering temperature, solvothermal synthesis
Abstract

The crystal structure of a new form of dehydrated manganese(II) acetate, poly[[hexa-mu(3)-acetato-trimanganese(II)] acetonitrile solvate], {[Mn-3(CH3COO)(6)]center dot CH3CN}(n), (I), reveals a three-dimensional polymeric structure based on an {Mn-3} trimer. The {Mn-3} 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).

URL<Go to ISI>://000267615800004
DOI10.1107/S0108270109014693