Acta Cryst. (2005). E61, o2053-o2054  [ doi:10.1107/S1600536805017605 ]

N-(3,5-Dichloro-2-pyridyl)formamide

A. Resinger, C. Wentrup, K. A. Byriel and C. H. L. Kennard

Online 10 June 2005

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.004 Å
• R factor = 0.041
• wR factor = 0.130
• Data-to-parameter ratio = 26.1

checkCIF/PLATON results

No syntax errors found



Alert level A
REFLT03_ALERT_3_A  Reflection count > 15% excess reflns - sys abs data present?
           From the CIF: _diffrn_reflns_theta_max           25.00
           From the CIF: _diffrn_reflns_theta_full          25.00
           From the CIF: _reflns_number_total               2614
           TEST2: Reflns within _diffrn_reflns_theta_max
           Count of symmetry unique reflns         1313
           Completeness (_total/calc)            199.09%

Alert level B
PLAT021_ALERT_1_B Ratio Unique / Expected Reflections too High ...       1.99       

Alert level C
PLAT200_ALERT_1_C Check the Reported _diffrn_ambient_temperature .        293 K     
PLAT431_ALERT_2_C Short Inter HL..A Contact  Cl31   ..  O23     ..       3.21 Ang.  

   1 ALERT level A = In general: serious problem
   1 ALERT level B = Potentially serious problem
   2 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   1 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
   0 ALERT type 4 Improvement, methodology, query or suggestion

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