Poly[[μ-aqua-aqua­[μ4-ethyl (dichloro­methyl­ene)diphospho­nato]sesqui­calcium(II)] acetone hemisolvate 4.5-hydrate]

Jokiniemi, J.; Peräniemi, S.; Vepsäläinen, J.; Ahlgrén, M.

doi:10.1107/S1600536809010150

Figure 1 A part of the polymeric structure of the title compound showing the atomic numbering scheme and 50% probability displacement ellipsoids for non-H atoms. Hydrogen bonds are shown as dashed lines. Atoms labelled with suffixes A-F are at the symmetry positions ( $[{1\over 2}]$ - x, $[{1\over 2}]$ - y, -z), ( $[{1\over 2}]$ - x, $[{1\over 2}]$ + y, $[{1\over 2}]$ - z), (x, -y, $[{1\over 2}]$ + z), (x, -y, z - $[{1\over 2}]$ ), ( $[{1\over 2}]$ - x, y - $[{1\over 2}]$ , $[{1\over 2}]$ - z) and (- x, y, $[{3\over 2}]$ - z), respectively.