Ethyl 5-chloro-9-ethoxy-2-oxo-2<i>H</i>-pyrano[2,3-<i>g</i>]quinoline-8-carboxylate
César D. de Oliveira; Gilberto A. Romeiro; Janet M. S. Skakle; James L. Wardell; Solange M. S. V. Wardell; Acta Crystallographica Section E 62 (2006) o1494–o1495; doi:10.1107/S160053680600715X

data_2208742
_publ_section_title
;Ethyl
 5-chloro-9-ethoxy-2-oxo-2<i>H</i>-pyrano[2,3-<i>g</i>]quinoline-8-carboxylate
;
_journal_coeditor_code           WK2004
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1494
_journal_page_last               o1495
_journal_paper_doi               10.1107/S160053680600715X
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C17 H14 Cl N O5'
_chemical_formula_moiety         'C17 H14 Cl N O5'
_chemical_formula_sum            'C17 H14 Cl N O5'
_chemical_formula_weight         347.74
_chemical_name_systematic
;
Ethyl 5-chloro-9-ethoxy-2-oxo-2H-pyrano[2,3-g]quinoline-8-carboxylate
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.1480(9)
_cell_length_b                   19.653(3)
_cell_length_c                   11.1150(14)
_cell_measurement_reflns_used    1346
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      19.2505
_cell_measurement_theta_min      3.5245
_cell_volume                     1561.4(4)
_computing_cell_refinement       'SAINT (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT
_computing_molecular_graphics
;
ORTEP-3 for Windows (Farrugia, 1997)
;
_computing_publication_material  'CIFTAB (Sheldrick, 1997)'
_computing_structure_refinement
;
OSCAIL and SHELXL97 (Sheldrick, 1997)
;
_computing_structure_solution
;
OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997)
;
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD 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  0.0999
_diffrn_reflns_av_sigmaI/netI    0.1567
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            15310
_diffrn_reflns_theta_full        32.52
_diffrn_reflns_theta_max         32.52
_diffrn_reflns_theta_min         2.07
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.273
_exptl_absorpt_correction_T_max  0.995
_exptl_absorpt_correction_T_min  0.866
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            clear
_exptl_crystal_density_diffrn    1.479
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.269
_refine_diff_density_min         -0.165
_refine_ls_abs_structure_details 'Flack (1983)'
_refine_ls_abs_structure_Flack   0.00(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.791
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         5017
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.791
_refine_ls_R_factor_all          0.2017
_refine_ls_R_factor_gt           0.0518
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0131P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0554
_refine_ls_wR_factor_ref         0.0756
_reflns_number_gt                1745
_reflns_number_total             5017
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            wk2004.cif
_cod_data_source_block           2
_cod_original_cell_volume        1561.4(3)
_cod_database_code               2208742
_cod_database_fobs_code          2208742