1-Hydroxy-2-methoxy-6-methyl-9,10-anthraquinone from <i>Rennellia elliptica</i> Korth.
Ismail, Nor Hadiani; Osman, Che Puteh; Ahmad, Rohaya; Awang, Khalijah; Ng, Seik Weng; Acta Crystallographica Section E 65 (2009) o1435–; doi:10.1107/S1600536809017619

data_2222163
_publ_section_title
;
 1-Hydroxy-2-methoxy-6-methyl-9,10-anthraquinone from <i>Rennellia
 elliptica</i> Korth.
;
_journal_coeditor_code           TK2448
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1435
_journal_paper_doi               10.1107/S1600536809017619
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C16 H12 O4'
_chemical_formula_moiety         'C16 H12 O4'
_chemical_formula_sum            'C16 H12 O4'
_chemical_formula_weight         268.26
_chemical_name_systematic
;
1-Hydroxy-2-methoxy-6-methyl-9,10-anthraquinone
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                91.409(3)
_cell_angle_beta                 100.603(3)
_cell_angle_gamma                105.666(3)
_cell_formula_units_Z            4
_cell_length_a                   7.1755(3)
_cell_length_b                   11.9082(5)
_cell_length_c                   14.9683(7)
_cell_measurement_reflns_used    1159
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.8
_cell_measurement_theta_min      2.8
_cell_volume                     1206.73(9)
_computing_cell_refinement       'SAINT (Bruker, 2008)'
_computing_data_collection       'APEX2 (Bruker, 2008)'
_computing_data_reduction        'SAINT (Bruker, 2008)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material  'publCIF (Westrip, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'Bruker SMART APEX'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.051
_diffrn_reflns_av_sigmaI/netI    0.091
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            6750
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         1.8
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.477
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.01
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_refine_diff_density_min         -0.35
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
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_refine_ls_number_reflns         4142
_refine_ls_number_restraints     0
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_refine_ls_R_factor_all          0.146
_refine_ls_R_factor_gt           0.082
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1397P)^2^+0.3435P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.233
_refine_ls_wR_factor_ref         0.267
_reflns_number_gt                2248
_reflns_number_total             4142
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            tk2448.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'None' changed to
'none' 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_database_code               2222163
_cod_database_fobs_code          2222163