Ethyl 2-amino-4-(4-methylphenyl)-4<i>H</i>-benzo[<i>f</i>]chromene-3-carboxylate
Daqing Shi; Hui Wu; Xiangshan Wang; Qiya Zhuang; Hongwen Hu; Acta Crystallographica Section E 59 (2003) o1263–o1264; doi:10.1107/S1600536803017033

data_2202484
_publ_section_title
;
 Ethyl
 2-amino-4-(4-methylphenyl)-4<i>H</i>-benzo[<i>f</i>]chromene-3-carboxylate
;
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1263
_journal_page_last               o1264
_journal_paper_doi               10.1107/S1600536803017033
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C23 H21 N O3'
_chemical_formula_moiety         'C23 H21 N O3'
_chemical_formula_sum            'C23 H21 N O3'
_chemical_formula_weight         359.41
_chemical_melting_point          474.5(5)
_chemical_name_systematic
;
Ethyl 2-amino-4-(4-methylphenyl)-4H-benzo[f]chromene-3-carboxylate
;
_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
_cell_angle_alpha                94.980(10)
_cell_angle_beta                 98.300(10)
_cell_angle_gamma                102.950(10)
_cell_formula_units_Z            2
_cell_length_a                   9.394(2)
_cell_length_b                   9.3960(10)
_cell_length_c                   11.005(2)
_cell_measurement_reflns_used    31
_cell_measurement_temperature    292(2)
_cell_measurement_theta_max      14.31
_cell_measurement_theta_min      3.69
_cell_volume                     929.6(3)
_computing_cell_refinement       XSCANS
_computing_data_collection       'XSCANS (Siemens, 1994)'
_computing_data_reduction        'SHELXTL (Sheldrick, 1997)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    SHELXTL
_diffrn_ambient_temperature      292(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0115
_diffrn_reflns_av_sigmaI/netI    0.0298
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            3602
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.88
_diffrn_standards_decay_%        2.98
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.284
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             380
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.162
_refine_diff_density_min         -0.147
_refine_ls_extinction_coef       0.029(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXTL
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3264
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0643
_refine_ls_R_factor_gt           0.0413
_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^)+(0.064P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1086
_refine_ls_wR_factor_ref         0.1174
_reflns_number_gt                2205
_reflns_number_total             3264
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ci6251.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 '474-475 K' was changed to '474.5(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 '474-475 K' was changed to '474.5(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_database_code               2202484
_cod_database_fobs_code          2202484