Acta Cryst. (2012). E68, o3344
[ doi:10.1107/S1600536812046132 ]

4'-Methyl-1H-14',19'-dioxa-4'-azaspiro[indole-3,5'-tetracyclo[18.4.0.0^2,6.0^8,13]tetracosane]-1'(24'),8',10',12',20',22'-hexaene-2,7'(3H)-dione

S. Narayanan, T. Srinivasan, S. Purushothaman, R. Raghunathan and D. Velmurugan

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.003 Å
• R factor = 0.049
• wR factor = 0.147
• Data-to-parameter ratio = 18.9

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT230_ALERT_2_B Hirshfeld Test Diff for    C22    --  C23     ..        7.5 su   

Alert level C
PLAT241_ALERT_2_C Check High      Ueq as Compared to Neighbors for        C22     
PLAT601_ALERT_2_C Structure Contains Solvent Accessible VOIDS of .         93 A   3 
PLAT905_ALERT_3_C Negative K value in the Analysis of Variance ...     -1.951      
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L=  0.600          4      

Alert level G
PLAT005_ALERT_5_G No _iucr_refine_instructions_details  in the CIF          ?
PLAT007_ALERT_5_G Note: Number of Unrefined D-H Atoms ............          1      
PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature        293 K    
PLAT200_ALERT_1_G Check the Reported   _diffrn_ambient_temperature        293 K    
PLAT793_ALERT_4_G The Model has Chirality at C2      (Verify) ....          R      
PLAT793_ALERT_4_G The Model has Chirality at C3      (Verify) ....          S      
PLAT793_ALERT_4_G The Model has Chirality at C4      (Verify) ....          R      
PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L=  0.600        103      

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

   2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   3 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
   4 ALERT type 4 Improvement, methodology, query or suggestion
   2 ALERT type 5 Informative message, check

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