Acta Cryst. (2002). E58, o1008-o1009  [ doi:10.1107/S1600536802014782 ]

1,4-Bis(2-ammonioethyl)piperazin-1,4-ium tetraperchlorate tetrahydrate

M.-D. Ye, M.-L. Hu, S. M. Zain and S. W. Ng

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.003 Å
• R factor = 0.050
• wR factor = 0.146
• Data-to-parameter ratio = 14.8

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_735  Alert C D-H     Calc     0.84(3), Rep   0.840(10) ....       3.00 s.u-Ratio
                     O1W  -H1W2    1.555   1.555

PLAT_736  Alert C H...A   Calc     2.19(3), Rep   2.190(10) ....       3.00 s.u-Ratio
                     H1W2 -O5      1.555   1.555


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 2 Alert Level C = Please check

Copyright © International Union of Crystallography
IUCr Webmaster