A mixed crystal of imperatorin and phellopterin, with C—H···O, C—H···π and π‒π interactions
Philip J Cox; Marcel Jaspars; Yashodharan Kumarasamy; Lutfun Nahar; Satyajit D. Sarker; Mohammad Shoeb; Acta Crystallographica Section C 59 (2003) o520–o522; doi:10.1107/S0108270103012459

data_2013405
_publ_section_title
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 A mixed crystal of imperatorin and phellopterin, with
 C---H&#x00B7;&#x00B7;&#x00B7;O, C---H&#x00B7;&#x00B7;&#x00B7;\p and
 \p--\p interactions
;
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o520
_journal_page_last               o522
_journal_paper_doi               10.1107/S0108270103012459
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          '0.926C16 H14 O4, 0.074C17 H16 O5'
_chemical_formula_moiety         '0.926C16 H14 O4, 0.074C17 H16 O5'
_chemical_formula_sum            'C16.08 H14.15 O4.08'
_chemical_formula_weight         272.69
_chemical_name_common            'Imperatorin, Phellopterin'
_chemical_name_systematic
;
8-(3-methylbut-2-enyloxy)furo[3,2-g]chromen-7-one
5-methoxy-8-(3-methylbut-2-enyloxy)furo[3,2-g]chromen-7-one (0.93/0.07)
;
_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                64.1855(18)
_cell_angle_beta                 89.6613(16)
_cell_angle_gamma                83.484(2)
_cell_formula_units_Z            4
_cell_length_a                   11.0551(4)
_cell_length_b                   11.7236(4)
_cell_length_c                   11.8718(5)
_cell_measurement_reflns_used    18828
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     1374.53(9)
_computing_cell_refinement       'DENZO and COLLECT'
_computing_data_collection
;
DENZO (Otwinowski & Minor, 1997), COLLECT (Hooft, 1998)
;
_computing_data_reduction        'DENZO and COLLECT'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al.,1999)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
;
Enraf Nonius KappaCCD area detector
;
_diffrn_measurement_method
;
\f and \w scans to fill Ewald sphere
;
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source
;
Enraf Nonius FR591 rotating anode
;
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.115
_diffrn_reflns_av_sigmaI/netI    0.121
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            24271
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.27
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.977
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SORTAV; Blessing, 1995, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.317
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             572
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.327
_refine_diff_density_min         -0.309
_refine_ls_extinction_coef       0.018(3)
_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   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     380
_refine_ls_number_reflns         6279
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.1638
_refine_ls_R_factor_gt           0.0838
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0419P)^2^+1.433P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1535
_refine_ls_wR_factor_ref         0.1813
_reflns_number_gt                3538
_reflns_number_total             6279
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bm1534.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.

'_geom_bond_publ_flag' value 'N' changed to 'n' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (73
times).

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (4 times).

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.

'_geom_bond_publ_flag' value 'N' changed to 'n'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (73
times).

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (4
times).

'_geom_angle_publ_flag' value 'N' changed to 'n' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (125
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (4
times).

'_geom_torsion_publ_flag' value 'N' changed to 'n' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (86
times).

'_geom_torsion_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (2 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2013405
_cod_database_fobs_code          2013405