5''-Benzylidene-1''-methyl-1'-phenyl-1',2',3',5',6',7',8',8a'-octahydrodispiro[acenaphthylene-1,3'-indolizine-2',3''-piperidine]-2,4''(1<i>H</i>)-dione
Suresh, J.; Nagalakshmi, R. A.; Kumar, R. Ranjith; Sivakumar, S.; Lakshman, P. L. Nilantha; Acta Crystallographica Section E 68 (2012) o2981–; doi:10.1107/S1600536812039591

data_2236668
_publ_section_title
;
 5''-Benzylidene-1''-methyl-1'-phenyl-1',2',3',5',6',7',8',8a'-octahydrodispiro[acenaphthylene-1,3'-indolizine-2',3''-piperidine]-2,4''(1<i>H</i>)-dione
;
_journal_coeditor_code           TK5152
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2981
_journal_paper_doi               10.1107/S1600536812039591
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C37 H34 N2 O2'
_chemical_formula_moiety         'C37 H34 N2 O2'
_chemical_formula_sum            'C37 H34 N2 O2'
_chemical_formula_weight         538.66
_chemical_name_systematic
;
5''-Benzylidene-1''-methyl-1'-phenyl-1',2',3',5',6',7',8',8a'-
octahydrodispiro[acenaphthylene-1,3'-indolizine-2',3''-piperidine]-
2,4''(1<i>H</i>)-dione
;
_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                 100.028(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.4913(3)
_cell_length_b                   16.6782(6)
_cell_length_c                   20.5435(7)
_cell_measurement_reflns_used    2000
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      31
_cell_measurement_theta_min      2
_cell_volume                     2864.92(18)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker Kappa APEXII'
_diffrn_measurement_method       '\w and \f'
_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  0.0349
_diffrn_reflns_av_sigmaI/netI    0.0321
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            43034
_diffrn_reflns_theta_full        31.27
_diffrn_reflns_theta_max         31.27
_diffrn_reflns_theta_min         1.58
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.974
_exptl_absorpt_correction_T_min  0.967
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.249
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.293
_refine_diff_density_min         -0.225
_refine_ls_extinction_coef       0.0030(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         9332
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0932
_refine_ls_R_factor_gt           0.0533
_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^)+(0.0678P)^2^+0.5825P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1316
_refine_ls_wR_factor_ref         0.1567
_reflns_number_gt                5857
_reflns_number_total             9332
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            tk5152.cif
_cod_data_source_block           I
_cod_original_cell_volume        2864.92(17)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2236668
_cod_database_fobs_code          2236668