[HTML version][PDF version][Article Abstract][CIF][3d view][Structure Factors][Issue contents]  [Open access]

[Contents scheme]

Acta Cryst. (2004). E60, o558-o560  [ doi:10.1107/S1600536804005756 ]

1,3-Diacetyl-4-imidazolin-2-one

R. Crockett, A. R. Forrester and R. A. Howie


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT125_ALERT_4_C No _symmetry_space_group_name_Hall Given ....... ? PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ... 7
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 27.55 From the CIF: _reflns_number_total 990 Count of symmetry unique reflns 989 Completeness (_total/calc) 100.10% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 1 Fraction of Friedel pairs measured 0.001 Are heavy atom types Z>Si present no
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 2 ALERT level C = Check and explain 1 ALERT level G = General alerts; check 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 1 ALERT type 3 Indicator that the structure quality may be low 2 ALERT type 4 Improvement, methodology, query or suggestion

Copyright © International Union of Crystallography
IUCr Webmaster