Acta Cryst. (2004). E60, m1744-m1746  [ doi:10.1107/S1600536804026650 ]

catena-Poly[[aquanitritosilver(I)]--1,4-diazabicyclo[2,2,2]octane-²N:N']

Z.-L. You, H.-L. Zhu and W.-S. Liu

Online 6 November 2004

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.011 Å
• R factor = 0.040
• wR factor = 0.096
• Data-to-parameter ratio = 11.9

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT241_ALERT_2_C Check High   U(eq) as Compared to Neighbors  for         O2     
PLAT242_ALERT_2_C Check Low    U(eq) as Compared to Neighbors  for         N1     
PLAT242_ALERT_2_C Check Low    U(eq) as Compared to Neighbors  for         N2     
PLAT342_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...         11       

Alert level G
REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is
            correct. If it is not, please give the correct count in the
            _publ_section_exptl_refinement section of the submitted CIF.
           From the CIF: _diffrn_reflns_theta_max           25.03
           From the CIF: _reflns_number_total               1478
           Count of symmetry unique reflns          888
           Completeness (_total/calc)            166.44%
           TEST3: Check Friedels for noncentro structure
           Estimate of Friedel pairs measured       590
           Fraction of Friedel pairs measured     0.664
           Are heavy atom types Z>Si present          yes

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

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