3,5a,9-Trimethyl-8-(2-phenylhydrazin-1-ylidene)-4,5,5a,9b-tetrahydro-3a<i>H</i>,8<i>H</i>-naphtho[1,2-<i>b</i>]furan-2(3<i>H</i>)-one
Yousuf, Sammer; Younas, Syed M.; Ambreen, Nida; Khan, Khalid M.; Miana, Ghulam A.; Acta Crystallographica Section E 68 (2012) o2112–; doi:10.1107/S1600536812023847

data_2235574
_publ_section_title
;
 3,5a,9-Trimethyl-8-(2-phenylhydrazin-1-ylidene)-4,5,5a,9b-tetrahydro-3a<i>H</i>,8<i>H</i>-naphtho[1,2-<i>b</i>]furan-2(3<i>H</i>)-one
;
_journal_coeditor_code           PV2547
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2112
_journal_paper_doi               10.1107/S1600536812023847
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C21 H24 N2 O2'
_chemical_formula_moiety         'C21 H24 N2 O2'
_chemical_formula_sum            'C21 H24 N2 O2'
_chemical_formula_weight         336.42
_chemical_name_systematic
;
3,5a,9-Trimethyl-8-(2-phenylhydrazin-1-ylidene)-4,5,5a,9b-
tetrahydro-3a<i>H</i>,8<i>H</i>-naphtho[1,2-<i>b</i>]furan-2(3<i>H</i>)-one
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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                   10.5104(12)
_cell_length_b                   11.5726(14)
_cell_length_c                   15.4401(18)
_cell_measurement_reflns_used    1104
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      18.12
_cell_measurement_theta_min      2.20
_cell_volume                     1878.0(4)
_computing_cell_refinement       'SAINT (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
SHELXTL (Sheldrick, 2008), PARST (Nardelli, 1995) and PLATON
(Spek, 2009)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
;
Bruker SMART APEX CCD area-detector diffractometer
;
_diffrn_measurement_method       '\w scan'
_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  0.0559
_diffrn_reflns_av_sigmaI/netI    0.0397
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            11178
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.20
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9916
_exptl_absorpt_correction_T_min  0.9692
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.190
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.115
_refine_diff_density_min         -0.114
_refine_ls_abs_structure_details 'Flack (1983), 1491 Friedel pairs'
_refine_ls_abs_structure_Flack   0(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         1999
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0769
_refine_ls_R_factor_gt           0.0433
_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^)+(0.0404P)^2^+0.0789P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0853
_refine_ls_wR_factor_ref         0.0991
_reflns_number_gt                1370
_reflns_number_total             1999
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            pv2547.cif
_cod_data_source_block           I
_cod_database_code               2235574
_cod_database_fobs_code          2235574