Acta Cryst. (2005). E61, m997-m1000  [ doi:10.1107/S1600536805012274 ]

Second-sphere coordination in anion binding: trans-bis(ethylenediamine-²N,N')dinitrocobalt(III) periodate

R. P. Sharma, R. Sharma, R. Bala and A. D. Bond

Abstract: In the title complex, [Co(NH₂CH₂CH₂NH₂)₂(NO₂)₂](IO₄), the cations are situated on two sets of inversion centres and are linked by pairs of complementary N-HO hydrogen bonds into columns arranged in an approximately hexagonal manner. The periodate anions can be envisaged as occupying triangular hollows above and below approximate hexagonal close-packed layers of trans-bis(ethylenediamine-²N,N')dinitrocobalt(III) cations.

Online 30 April 2005

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