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Acta Cryst. (2003). E59, o2000-o2002  [ doi:10.1107/S1600536803026102 ]

8-Methoxy-4-(4-methoxyphenyl)isochroman-3-ol

M. Palusiak, S. J. Grabowski, J. A. Epsztajn and J. A. Kowalska


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Alert level A PLAT029_ALERT_3_A _diffrn_measured_fraction_theta_full Low ....... 0.97 PLAT052_ALERT_1_A (Proper) Absorption Correction Method Missing .. ?
Alert level C PLAT089_ALERT_3_C Poor Data / Parameter Ratio (Zmax .LT. 18) ..... 7.19 PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density .... 2.16 PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ... 6
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 67.49 From the CIF: _reflns_number_total 1388 Count of symmetry unique reflns 1430 Completeness (_total/calc) 97.06% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 0 Fraction of Friedel pairs measured 0.000 Are heavy atom types Z>Si present no
2 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 3 ALERT level C = Check and explain 1 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 3 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion

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