(<i>rac</i>-2<i>SR</i>,3<i>RS</i>,5<i>SR</i>)-Spiro[3-methoxycarbonyl-1-azabicyclo[3.3.0]octane-2,1'-acenaphthylen]-2'-one
Sundar, T. V.; Parthasarathi, V.; Álvarez-Rúa, C.; García-Granda, S.; Sharma, I.; Pardasani, R. T.; Mehrotra, R. C.; Acta Crystallographica Section E 59 (2003) o280–o282; doi:10.1107/S1600536803002344

data_2202055
_publ_section_title
(<i>rac</i>-2<i>SR</i>,3<i>RS</i>,5<i>SR</i>)-Spiro[3-methoxycarbonyl-1-azabicyclo[3.3.0]octane-2,1'-acenaphthylen]-2'-one
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o280
_journal_page_last               o282
_journal_paper_doi               10.1107/S1600536803002344
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C20 H19 N O3'
_chemical_formula_moiety         'C20 H19 N O3'
_chemical_formula_sum            'C20 H19 N O3'
_chemical_formula_weight         321.36
_chemical_melting_point          418
_chemical_name_systematic
;
(rac-2SR,3RS,5SR)-Spiro[3-methoxycarbonyl-1-azabicyclo[3.3.0]octane-2,1'-
acenaphthylen]-2'-one
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 129.1820(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.52060(10)
_cell_length_b                   14.7738(2)
_cell_length_c                   14.6958(2)
_cell_measurement_reflns_used    18832
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      69.91
_cell_measurement_theta_min      4.90
_cell_volume                     1602.25(4)
_computing_cell_refinement       'HKL SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997-2000)'
_computing_data_reduction
'HKL DENZO (Otwinowski & Minor, 1997) and SCALEPACK'
_computing_molecular_graphics
'WinGX (Farrugia, 1999) and PLATON (Spek, 2002)'
_computing_publication_material  'SHELXL97 and PARST (Nardelli, 1995)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'isomorphous method'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans with \k offsets'
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.0507
_diffrn_reflns_av_sigmaI/netI    0.0224
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            35501
_diffrn_reflns_theta_full        69.91
_diffrn_reflns_theta_max         69.91
_diffrn_reflns_theta_min         4.90
_exptl_absorpt_coefficient_mu    0.723
_exptl_absorpt_correction_T_max  0.9312
_exptl_absorpt_correction_T_min  0.8123
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SORTAV; Blessing 1995)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.332
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rectangular block'
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.366
_refine_diff_density_min         -0.162
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         2994
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0566
_refine_ls_R_factor_gt           0.0473
_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^)+(0.0711P)^2^+0.3621P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1286
_refine_ls_wR_factor_ref         0.1369
_reflns_number_gt                2476
_reflns_number_total             2994
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            na6196.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '418 K' was changed to '418' - the
value should be numeric and without a unit designator.

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 '418 K' was changed to '418' - the
value should be numeric and without a unit designator.

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               2202055
_cod_database_fobs_code          2202055