Acta Cryst. (2006). E62, m408-m410  [ doi:10.1107/S1600536806003424 ]

Di--bromo-bis[bis(1,2-diaminoethane-²N,N)nickel(II)] dibromide

M. Xie and R. E. Norman

Online 3 February 2006

Key indicators

• Single-crystal X-ray study
• T = 294 K
• Mean (C-C) = 0.008 Å
• R factor = 0.035
• wR factor = 0.049
• Data-to-parameter ratio = 22.3

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT232_ALERT_2_B Hirshfeld Test Diff (M-X)  Br1    -   Ni1_a   ..      12.55 su    

Alert level C
PLAT021_ALERT_1_C Ratio Unique / Expected Reflections too High ...       1.04       
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT341_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...          8       
PLAT420_ALERT_2_C D-H Without Acceptor       N1     -   H1     ...          ?       
PLAT420_ALERT_2_C D-H Without Acceptor       N3     -   H6     ...          ?       
PLAT710_ALERT_4_C Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... #         11     
            NI1 -BR1 -NI1 -N3     86.00  1.00   1.555   1.555   3.656   3.656   
PLAT710_ALERT_4_C Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... #         23     
            N2  -NI1 -N4  -C4     -5.00  1.00   1.555   1.555   1.555   1.555   
PLAT710_ALERT_4_C Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... #         29     
            N4  -NI1 -N2  -C2    -67.00  1.00   1.555   1.555   1.555   1.555   

   0 ALERT level A = In general: serious problem
   1 ALERT level B = Potentially serious problem
   8 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
   3 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
   3 ALERT type 4 Improvement, methodology, query or suggestion

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