Acta Cryst. (2004). E60, i3-i5  [ doi:10.1107/S1600536803028344 ]

Dipotassium nickel(II) bis(dihydrogendiphosphate) dihydrate, K₂Ni(H₂P₂O₇)₂·2H₂O

A. A. Tahiri, I. Messouri, M. Lachkar, P. Y. Zavalij, R. Glaum, B. El Bali and O. Rachid

Online 19 December 2003

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (P-O) = 0.003 Å
• R factor = 0.044
• wR factor = 0.099
• Data-to-parameter ratio = 14.3

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   1 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   0 ALERT type 2 Indicator that the structure model may be wrong or deficient
   0 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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