Acta Cryst. (2004). E60, o807-o809  [ doi:10.1107/S1600536804008657 ]

2,3,4,6-Tetraphenyl-2H-pyrazolo[3,4-d]pyridazin-7(6H)-one

M. Dinçer, N. Özdemir, I. Yildirim, E. Demir, Y. Akçamur and S. Isik

Online 24 April 2004

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.004 Å
• R factor = 0.050
• wR factor = 0.089
• Data-to-parameter ratio = 12.8

checkCIF/PLATON results

No syntax errors found




Alert level C
RINTA01_ALERT_3_C  The value of Rint is greater than 0.10
            Rint given   0.138
PLAT020_ALERT_3_C The value of Rint is greater than 0.10 .........       0.14       
PLAT026_ALERT_3_C Ratio Observed / Unique Reflections too Low ....         49 Perc. 

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

   0 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
   3 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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