(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2004). E60, o1877-o1879 [ doi:10.1107/S160053680402358X ]

Methyl 2-amino-4-(3-nitrophenyl)-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxylate dimethylformamide solvate

X.-S. Wang, Z.-S. Zeng, D.-Q. Shi, X.-Y. Wei and Z.-M. Zong

Key indicators

Single-crystal X-ray study
T = 295 K
Mean (C-C) = 0.003 Å
Disorder in solvent or counterion
R factor = 0.041
wR factor = 0.108
Data-to-parameter ratio = 11.8

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT242_ALERT_2_C Check Low    U(eq) as Compared to Neighbors  for         N3     
PLAT244_ALERT_4_C Low  Solvent U(eq) as Compared to Neighbors  for         N4     
PLAT244_ALERT_4_C Low  Solvent U(eq) as Compared to Neighbors  for        N4'     
PLAT302_ALERT_4_C Anion/Solvent Disorder .........................      50.00 Perc. 
PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd.  #          2       
              C3 H7 N O                                                         

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   5 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
   1 ALERT type 2 Indicator that the structure model may be wrong or deficient
   0 ALERT type 3 Indicator that the structure quality may be low
   4 ALERT type 4 Improvement, methodology, query or suggestion