Acta Cryst. (2009). E65, o2332  [ doi:10.1107/S1600536809034576 ]

1H-Imidazo[4,5-f][1,10]phenanthrolin-7-ium perchlorate monohydrate

S.-M. Shen

Online 5 September 2009

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.005 Å
• R factor = 0.057
• wR factor = 0.197
• Data-to-parameter ratio = 12.2

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT340_ALERT_3_C Low Bond Precision on  C-C Bonds (x 1000) Ang ..          5      
PLAT244_ALERT_4_C Low   'Solvent' Ueq as Compared to Neighbors of         Cl1     

Alert level G
PLAT072_ALERT_2_G SHELXL First Parameter in WGHT Unusually Large..       0.13      
PLAT333_ALERT_2_G Check Large Av C6-Ring C-C Dist. C4     -C12           1.42 Ang. 
PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints .......          3      
PLAT720_ALERT_4_G Number of Unusual/Non-Standard Labels ..........          2      

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

   0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   2 ALERT type 2 Indicator that the structure model may be wrong or deficient
   2 ALERT type 3 Indicator that the structure quality may be low
   2 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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