2,3-Dihydro-7,8-dihydroxy-3-[(4-methoxyphenyl)methylene]-4<i>H</i>-1-benzopyran-4-one
Suchada Chantrapromma; Sompong Boonsri; Hoong-Kun Fun; Shazia Anjum; Akkharawit Kanjana-opas; Acta Crystallographica Section E 62 (2006) o1254–o1256; doi:10.1107/S1600536806007124

data_2208641
_publ_section_title
2,3-Dihydro-7,8-dihydroxy-3-[(4-methoxyphenyl)methylene]-4<i>H</i>-1-benzopyran-4-one
_journal_coeditor_code           JH2004
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1254
_journal_page_last               o1256
_journal_paper_doi               10.1107/S1600536806007124
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C17 H14 O5'
_chemical_formula_moiety         'C17 H14 O5'
_chemical_formula_sum            'C17 H14 O5'
_chemical_formula_weight         298.28
_chemical_melting_point          .457E-305
_chemical_name_common            intricatinol
_chemical_name_systematic
2,3-dihydro-6,7-dihydroxy-3-[(4-methoxyphenyl)methylene]-4H-1-benzopyran-4-one
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.905(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.886(3)
_cell_length_b                   13.896(3)
_cell_length_c                   7.680(2)
_cell_measurement_reflns_used    2699
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      26.00
_cell_measurement_theta_min      1.59
_cell_volume                     1367.9(6)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material
;
SHELXTL and PLATON (Spek, 2003)
;
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 1997)'
_diffrn_ambient_temperature      273(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
;
Bruker SMART CCD area-detector
;
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0192
_diffrn_reflns_av_sigmaI/netI    0.0192
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            7637
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.59
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_T_max  0.9889
_exptl_absorpt_correction_T_min  0.9471
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.448
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.51
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.189
_refine_diff_density_min         -0.185
_refine_ls_extinction_coef       0.0049(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     203
_refine_ls_number_reflns         2687
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0419
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.05P)^2^+0.3706P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1040
_refine_ls_wR_factor_ref         0.1096
_reflns_number_gt                2291
_reflns_number_total             2687
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jh2004.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1367.9(5)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2208641
_cod_database_fobs_code          2208641