[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o256-o257
[ doi:10.1107/S1600536813001177 ]

5''-(4-Methoxybenzylidene)-1'-(4-methoxyphenyl)-1''-methyl-1',2',3',5',6',7',8',8a'-octahydrodispiro[acenaphthylene-1,3'-indolizine-2',3''-piperidine]-2,4''(1H)-dione

J. Suresh, R. A. Nagalakshmi, S. Sivakumar, R. R. Kumar and P. L. N. Lakshman


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT340_ALERT_3_C Low Bond Precision on C-C Bonds ............... 0.0053 Ang PLAT906_ALERT_3_C Large K value in the Analysis of Variance ...... 2.621 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.598 32 PLAT918_ALERT_3_C Reflection(s) # with I(obs) much smaller I(calc) 1
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT128_ALERT_4_G Alternate Setting of Space-group P21/c ....... P21/n PLAT153_ALERT_1_G The su's on the Cell Axes are Equal .......... 0.00500 Ang. 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 C3 (Verify) .... R PLAT793_ALERT_4_G The Model has Chirality at C7 (Verify) .... S PLAT793_ALERT_4_G The Model has Chirality at C8 (Verify) .... R PLAT793_ALERT_4_G The Model has Chirality at C13 (Verify) .... S PLAT870_ALERT_4_G ALERTS Related to Twinning Effects Suppressed .. ! PLAT909_ALERT_3_G Percentage of Observed Data at Theta(Max) still 36 Perc. PLAT931_ALERT_5_G Check Twin Law ( 0 0 1)[ ] Estimated BASF 0.12
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 4 ALERT level C = Check. Ensure it is not caused by an omission or oversight 12 ALERT level G = General information/check it is not something unexpected 3 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 5 ALERT type 3 Indicator that the structure quality may be low 6 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

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