[Open access]

[Contents scheme]

Acta Cryst. (2012). E68, o2668-o2669
[ doi:10.1107/S1600536812034514 ]

Monoclinic polymorph of 2,5-dideoxy-2,5-epithio-1,3:4,6-bis-O-[(R)-phenylmethylene]-L-iditol

J. G. Gibson, J. Y. Cho, F. R. Fronczek and S. F. Watkins


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 1 PLAT915_ALERT_3_C Low Friedel Pair Coverage ...................... 87 Perc.
Alert level G REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is correct. If it is not, please give the correct count in the _publ_section_exptl_refinement section of the submitted CIF. From the CIF: _diffrn_reflns_theta_max 33.14 From the CIF: _reflns_number_total 6225 Count of symmetry unique reflns 3500 Completeness (_total/calc) 177.86% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 2725 Fraction of Friedel pairs measured 0.779 Are heavy atom types Z>Si present yes PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF .... ? PLAT791_ALERT_4_G Note: The Model has Chirality at C1 (Verify) S PLAT791_ALERT_4_G Note: The Model has Chirality at C2 (Verify) S PLAT791_ALERT_4_G Note: The Model has Chirality at C3 (Verify) S PLAT791_ALERT_4_G Note: The Model has Chirality at C4 (Verify) S PLAT791_ALERT_4_G Note: The Model has Chirality at C6 (Verify) R PLAT791_ALERT_4_G Note: The Model has Chirality at C14 (Verify) R PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 5
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 2 ALERT level C = Check. Ensure it is not caused by an omission or oversight 9 ALERT level G = General information/check it is not something unexpected 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 2 ALERT type 3 Indicator that the structure quality may be low 8 ALERT type 4 Improvement, methodology, query or suggestion 1 ALERT type 5 Informative message, check

Copyright © International Union of Crystallography
IUCr Webmaster