Acta Cryst. (2010). E66, o100  [ doi:10.1107/S1600536809052374 ]

N²,N²,N⁵,N⁵-Tetrakis(2-chloroethyl)-3,4-dimethylthiophene-2,5-dicarboxamide

Y.-D. Tang, R.-X. Geng and C.-H. Zhou

Online 12 December 2009

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.003 Å
• R factor = 0.042
• wR factor = 0.126
• Data-to-parameter ratio = 17.6

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low .......       0.98      
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L=  0.600         77      
PLAT912_ALERT_4_C Missing # of FCF Reflections Above STh/L=  0.600         22      

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   3 ALERT level C = Check and explain
   0 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
   2 ALERT type 3 Indicator that the structure quality may be low
   1 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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