Julolidine-1,6-dione
Wu, Wei-Bing; Wang, Ming-Liang; Ye, Heng-Yun; Sun, Yue-Ming; Acta Crystallographica Section E 63 (2007) o4699–o4699; doi:10.1107/S1600536807056802

data_2216618
_publ_section_title
;
 Julolidine-1,6-dione
;
_journal_coeditor_code           LH2533
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o4699
_journal_page_last               o4699
_journal_paper_doi               10.1107/S1600536807056802
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C12 H11 N O2'
_chemical_formula_moiety         'C12 H11 N O2'
_chemical_formula_sum            'C12 H11 N O2'
_chemical_formula_weight         201.22
_chemical_name_systematic
;
julolidine-1,6-dione
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                   10.069(2)
_cell_length_b                   14.081(3)
_cell_length_c                   6.9452(14)
_cell_measurement_reflns_used    7909
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.94
_cell_measurement_theta_min      3.27
_cell_volume                     984.7(3)
_computing_cell_refinement       'CrystalClear (Rigaku, 2005)'
_computing_data_collection       'CrystalClear (Rigaku, 2005)'
_computing_data_reduction        'CrystalClear (Rigaku, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1999)'
_computing_publication_material  'SHELXTL (Sheldrick, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 13.6612
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku Mercury2'
_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  0.0864
_diffrn_reflns_av_sigmaI/netI    0.0526
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            9450
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.27
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.720
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku, 2005)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.147
_refine_diff_density_min         -0.191
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.102
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     73
_refine_ls_number_reflns         1170
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.0932
_refine_ls_R_factor_gt           0.0612
_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^)+(0.076P)^2^+0.0053P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1468
_refine_ls_wR_factor_ref         0.1634
_reflns_number_gt                767
_reflns_number_total             1170
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh2533.cif
_cod_data_source_block           I
_cod_database_code               2216618
_cod_database_fobs_code          2216618