4,5-Dimethoxy-2-(1-methoxy-3-phenylallylidene)cyclopent-4-ene-1,3-dione (methyl linderone)
Syah, Yana M.; Suastri, Nyoman S.; Latip, Jalifah; Yamin, Bohari M.; Acta Crystallographica Section E 61 (2005) o1530–o1531; doi:10.1107/S1600536805012833

data_2205964
_publ_section_title
;
 4,5-Dimethoxy-2-(1-methoxy-3-phenylallylidene)cyclopent-4-ene-1,3-dione
 (methyl linderone)
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1530
_journal_page_last               o1531
_journal_paper_doi               10.1107/S1600536805012833
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C17 H16 O5'
_chemical_formula_moiety         'C17 H16 O5'
_chemical_formula_sum            'C17 H16 O5'
_chemical_formula_weight         300.30
_chemical_melting_point          348.5(5)
_chemical_name_common            'Methyl linderone'
_chemical_name_systematic
;
4,5-Dimethoxy-2-(1-methoxy-3-phenylallylidine)cyclcopent-4-ene-1,3-dione
;
_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                78.224(5)
_cell_angle_beta                 87.913(6)
_cell_angle_gamma                68.280(5)
_cell_formula_units_Z            2
_cell_length_a                   7.380(3)
_cell_length_b                   8.139(3)
_cell_length_c                   13.781(5)
_cell_measurement_reflns_used    866
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.4
_cell_measurement_theta_min      1.5
_cell_volume                     752.1(5)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material
'SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2003)'
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 83.66
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device_type  'Bruker SMART APEX 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  0.0184
_diffrn_reflns_av_sigmaI/netI    0.0205
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            8035
_diffrn_reflns_theta_full        26.4
_diffrn_reflns_theta_max         26.4
_diffrn_reflns_theta_min         1.5
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.970
_exptl_absorpt_correction_T_min  0.954
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.326
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             316
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.25
_refine_diff_density_min         -0.18
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.06
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3079
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.06
_refine_ls_R_factor_all          0.062
_refine_ls_R_factor_gt           0.054
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0726P)^2^+0.1615P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.143
_refine_ls_wR_factor_ref         0.149
_reflns_number_gt                2588
_reflns_number_total             3079
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hg6179.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.

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

The following automatic conversions were performed:

'_chemical_melting_point' value '348 - 349' was changed to '348.5(5)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '348 - 349' was changed to '348.5(5)'
- the average value was taken and precision was
estimated.

'_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.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               2205964
_cod_database_fobs_code          2205964