Ethyl 2-amino-4-phenyl-4<i>H</i>-benzo[<i>h</i>]chromene-3-carboxylate
Tang, Shi-Gui; Gu, Xi-Feng; Wei, Ping; Acta Crystallographica Section E 62 (2006) o136–o137; doi:10.1107/S1600536805040729

data_2207765
_publ_section_title
;
 Ethyl 2-amino-4-phenyl-4<i>H</i>-benzo[<i>h</i>]chromene-3-carboxylate
;
_journal_coeditor_code           CV6620
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o136
_journal_page_last               o137
_journal_paper_doi               10.1107/S1600536805040729
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C22 H19 N O3'
_chemical_formula_moiety         'C22 H19 N O3'
_chemical_formula_sum            'C22 H19 N O3'
_chemical_formula_weight         345.38
_chemical_name_systematic
;
Ethyl 2-amino-4-phenyl-4H-benzo[h]chromene-3-carboxylate
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 110.03(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.178(2)
_cell_length_b                   8.9950(18)
_cell_length_c                   17.085(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12
_cell_measurement_theta_min      9
_cell_volume                     1758.3(6)
_computing_cell_refinement       'CAD-4 Software'
_computing_data_collection       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'SHELXTL (Siemens, 1996)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_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  0.0697
_diffrn_reflns_av_sigmaI/netI    0.0804
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            3595
_diffrn_reflns_theta_full        25.97
_diffrn_reflns_theta_max         25.97
_diffrn_reflns_theta_min         1.78
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.305
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             728
_exptl_crystal_size_max          .4
_exptl_crystal_size_mid          .3
_exptl_crystal_size_min          .2
_refine_diff_density_max         0.405
_refine_diff_density_min         -0.703
_refine_ls_extinction_coef       0.0076(13)
_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   1.096
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         3431
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.140
_refine_ls_R_factor_all          0.1604
_refine_ls_R_factor_gt           0.0660
_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^+0.9P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1533
_refine_ls_wR_factor_ref         0.1874
_reflns_number_gt                1642
_reflns_number_total             3431
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cv6620.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_sg_symbol_H-M      'P 21/c'
_cod_database_code               2207765
_cod_database_fobs_code          2207765