Acta Cryst. (2002). E58, i108-i110  [ doi:10.1107/S1600536802019116 ]

Sodium cobalt(II) hydrogendiphosphate, NaCoHP₂O₇

A. Guesmi and A. Driss

Online 31 October 2002

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (P-O) = 0.002 Å
• Disorder in solvent or counterion
• R factor = 0.018
• wR factor = 0.057
• Data-to-parameter ratio = 9.9

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level B:



CHEMS_01  Alert B The sum formula contains elements in the wrong order.         
          H  precedes Co                                                        
          Sequence must be C, H, then alphabetical.                             


 Alert Level C:



PLAT_302  Alert C Anion/Solvent Disorder .......................      50.00 Perc.

PLAT_745  Alert C D-H     Calc     0.80(2), Rep     0.80000 ....    Missing su
                     O4   -H       1.555   1.555

PLAT_745  Alert C D-H     Calc     0.80(2), Rep     0.80000 ....    Missing su
                     O4   -H       1.555   1.555

PLAT_746  Alert C H...A   Calc     1.66(3), Rep     1.66000 ....    Missing su
                     H    -O7      1.555   2.666

PLAT_746  Alert C H...A   Calc     2.57(4), Rep     2.56000 ....    Missing su
                     H    -O1      1.555   2.666


 0 Alert Level A = Potentially serious problem

 1 Alert Level B = Potential problem

 5 Alert Level C = Please check

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