Acta Cryst. (2005). E61, o923-o925  [ doi:10.1107/S1600536805006641 ]

Methyl 3-amino-1-(2-chlorophenyl)-9-methoxy-5,6-dihydro-1H-naphtho[2,1-b]pyran-2-carboxylate

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

Online 11 March 2005

Key indicators

• Single-crystal X-ray study
• T = 273 K
• Mean (C-C) = 0.003 Å
• R factor = 0.040
• wR factor = 0.098
• Data-to-parameter ratio = 13.4

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT222_ALERT_3_C Large Non-Solvent    H     Ueq(max)/Ueq(min) ...       3.14 Ratio 
PLAT420_ALERT_2_C D-H Without Acceptor       N      -   H1B    ...          ?       

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

Copyright © International Union of Crystallography
IUCr Webmaster