Acta Cryst. (2012). E68, o92  [ doi:10.1107/S1600536811052615 ]

2-(3-Benzoyl-4-hydroxy-1,1-dioxo-2H-1⁶,2-benzothiazin-2-yl)-1-phenylethanone

N. Sattar, H. L. Siddiqui, S. I. H. Bukhari, M. Ahmad and M. Parvez

Online 10 December 2011

Key indicators

• Single-crystal X-ray study
• T = 173 K
• Mean (C-C) = 0.003 Å
• R factor = 0.044
• wR factor = 0.107
• Data-to-parameter ratio = 16.0

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT430_ALERT_2_B Short Inter D...A Contact  O4     ..  O4      ..       2.83 Ang. 

Alert level C
PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd.  #          1      
              C23 H17 N O5 S                                                   
PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) .....          5      
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L=  0.600         13      
PLAT912_ALERT_4_C Missing # of FCF Reflections Above STh/L=  0.600         24      
PLAT913_ALERT_3_C Missing # of Very Strong Reflections in FCF ....          1      

Alert level G
PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF ....          ?
PLAT154_ALERT_1_G The su's on the Cell Angles are Equal ..........    0.00200 Deg. 

   0 ALERT level A = Most likely a serious problem - resolve or explain
   1 ALERT level B = A potentially serious problem, consider carefully
   5 ALERT level C = Check. Ensure it is not caused by an omission or oversight
   2 ALERT level G = General information/check it is not something unexpected

   1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   1 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
   2 ALERT type 4 Improvement, methodology, query or suggestion
   1 ALERT type 5 Informative message, check

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