Acta Cryst. (2004). E60, o674-o675  [ doi:10.1107/S1600536804006749 ]

The photodimer of 1-(anthracen-9-ylmethyl)-3-ethylimidazolium iodide

Q.-X. Liu, H.-B. Song, F.-B. Xu, Q.-S. Li and Z.-Z. Zhang

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.005 Å
• R factor = 0.031
• wR factor = 0.069
• Data-to-parameter ratio = 13.8

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT029_ALERT_3_B _diffrn_measured_fraction_theta_full Low .......       0.96       
PLAT222_ALERT_3_B Large Non-Solvent    H     Ueq(max)/Ueq(min) ...       4.36 Ratio 

Alert level C
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT125_ALERT_4_C No _symmetry_space_group_name_Hall Given .......          ?
PLAT220_ALERT_2_C Large Non-Solvent    C     Ueq(max)/Ueq(min) ...       3.48 Ratio 

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

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

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