Acta Cryst. (2004). E60, m1570-m1572  [ doi:10.1107/S1600536804024262 ]

Redetermination of catena-poly[[diaquamanganese(II)]--iminodiacetato-⁴N,O,O':O'']

B.-X. Liu and D.-J. Xu

Abstract: The redetermined structure of the title compound, [Mn(C₄H₅NO₄)(H₂O)₂]_n, including the full hydrogen-bonding scheme, is reported; the original report was by Zhang & Lu [Acta Cryst. (2004). E60, m1189-m1190]. The structure contains polymeric chains of Mn^II cations bridged by iminodiacetate (IDA) dianions. The manganese species assumes a distorted octahedral coordination geometry, formed by two IDA molecules (one tridentate and one monodentate) and two water molecules. The tridentate IDA chelates to the Mn atom in the facial configuration; one chelating five-membered ring is almost planar and the other adopts an envelope configuration. A significant difference of 0.118  (2)  Å in Mn-O_carboxyl bond distances is observed within the chelating IDA moiety.

Online 9 October 2004

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