Citation: Gu, Chang-Sheng; Hao, Xiao-Min; Song, Wen-Dong; Lin, Hai-Sheng; Ma, De-Yun (2008). Poly[aqua(\m~2~-oxalato)(4-oxidopyridinium)erbium(II)]. Acta Crystallographica Section E, 64, pp. m649-m650.
Formula: C8 H7 Er N O8
Chemical name: Poly[aqua(\m~2~-oxalato)(4-oxido-4-pyridinium)erbium(II)]
List type: noninterleaving
List: 2D
Basis: (1;0;2 0;1;0)
Dimensionality: 2
Formula: C22 H14 Er4 N2 O30 (C11 H7 Er2 N O15)