Acta Cryst. (2005). E61, m1015-m1017  [ doi:10.1107/S1600536805012973 ]

Bis(nitrato-²O,O')(1,4,7,10,13-pentaoxacyclopentadecane)calcium(II)

M. D. Brown, W. Levason and M. Webster

Abstract: The crystal structure of the title compound, [Ca(NO₃)₂(C₁₀H₂₀O₅)], at 120 K contains discrete molecules with nine-coordinate Ca atoms. There are two molecules in the asymmetric unit, related by a pseudo-inversion centre. The crown bonds through five O atoms [Ca-O = 2.464 (2)-2.567 (2) Å] and the nitrates are bidentate [Ca-O = 2.444 (2)-2.588 (2) Å]. The structure is a polymorph of a previously reported room-temperature form.

Online 7 May 2005

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