Acta Cryst. (2004). E60, o1847-o1848  [ doi:10.1107/S1600536804022688 ]

Redetermination of trans-2,5,7,10-tetraazabicyclo[4.4.0]decane

I. Sänger, H.-W. Lerner and M. Bolte

Online 25 September 2004

Key indicators

• Single-crystal X-ray study
• T = 173 K
• Mean (C-C) = 0.002 Å
• R factor = 0.050
• wR factor = 0.144
• Data-to-parameter ratio = 10.0

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT088_ALERT_3_C Poor Data / Parameter Ratio ....................       9.98       
PLAT720_ALERT_4_C Number of Unusual/Non-Standard Label(s) ........          1       
PLAT764_ALERT_4_C Overcomplete CIF Bond List Detected (Rep/Expd) .       1.25 Ratio 

   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
   1 ALERT type 3 Indicator that the structure quality may be low
   2 ALERT type 4 Improvement, methodology, query or suggestion

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