Acta Cryst. (2005). E61, m616-m618  [ doi:10.1107/S1600536805005866 ]

Poly[zinc(II)-₂-azido-²N¹:N¹-₃-nicotinato-³N:O:O']

H.-J. Chen

Online 4 March 2005

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.005 Å
• R factor = 0.024
• wR factor = 0.060
• Data-to-parameter ratio = 10.5

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT029_ALERT_3_B _diffrn_measured_fraction_theta_full Low .......       0.94       

Alert level C
PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor ....       2.65       
PLAT764_ALERT_4_C Overcomplete CIF Bond List Detected (Rep/Expd) .       1.19 Ratio 

Alert level G
REFLT03_ALERT_4_G  WARNING: Large fraction of Friedel related reflns may
                     be needed to determine absolute structure
           From the CIF: _diffrn_reflns_theta_max           28.99
           From the CIF: _reflns_number_total               1247
           Count of symmetry unique reflns         1246
           Completeness (_total/calc)            100.08%
           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          yes

   0 ALERT level A = In general: serious problem
   1 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
   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
   2 ALERT type 4 Improvement, methodology, query or suggestion

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