Crystal structure of 2-isopropyl-8,8-dimethyl-5,6,7,8-tetrahydrophenanthrene-3,4-dione, C19H22O2
Wu, Jichun; Luo, Guoyong; Liu, Yuchen; Yang, Wude; Zeitschrift für Kristallographie - New Crystal Structures 233 (2018) 723–724; doi:10.1515/ncrs-2018-0056

data_8106274
_publ_section_title
;
 Crystal structure of
 2-isopropyl-8,8-dimethyl-5,6,7,8-tetrahydrophenanthrene-3,4-dione,
 C19H22O2
;
_journal_issue                   4
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              723
_journal_page_last               724
_journal_paper_doi               10.1515/ncrs-2018-0056
_journal_volume                  233
_journal_year                    2018
_chemical_formula_moiety         'C19 H22 O2'
_chemical_formula_sum            'C19 H22 O2'
_chemical_formula_weight         282.36
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_cell_angle_alpha                73.284(3)
_cell_angle_beta                 73.041(3)
_cell_angle_gamma                83.391(3)
_cell_formula_units_Z            2
_cell_length_a                   8.4768(13)
_cell_length_b                   8.7667(14)
_cell_length_c                   11.1282(17)
_cell_measurement_reflns_used    1874
_cell_measurement_temperature    173
_cell_measurement_theta_max      27.36
_cell_measurement_theta_min      2.51
_cell_volume                     757.1(2)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      173
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0260
_diffrn_reflns_av_unetI/netI     0.0430
_diffrn_reflns_Laue_measured_fraction_full 0.987
_diffrn_reflns_Laue_measured_fraction_max 0.977
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6823
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.977
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.436
_diffrn_reflns_theta_min         1.986
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6746
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2014/5 (Bruker,2014/5) was used for absorption correction. wR2(int) was 0.0737 before and 0.0418 after correction. The Ratio of minimum to maximum transmission is 0.9048. The \l/2 correction factor is 0.00150.'
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.239
_exptl_crystal_description       block
_exptl_crystal_F_000             304
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.228
_refine_diff_density_rms         0.060
_refine_ls_extinction_coef       .
_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     194
_refine_ls_number_reflns         3375
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0661
_refine_ls_R_factor_gt           0.0509
_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^)+(0.0950P)^2^+0.0710P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1457
_refine_ls_wR_factor_ref         0.1613
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2602
_reflns_number_total             3375
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            suppl_ncrs-2018-0056_suppl.cif
_cod_data_source_block           mo_ds-1_0m
_cod_database_code               8106274
_shelx_estimated_absorpt_t_max   0.991
_shelx_estimated_absorpt_t_min   0.978
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C3(H3)
2.b Secondary CH2 refined with riding coordinates:
 C9(H9A,H9B), C11(H11A,H11B), C10(H10A,H10B)
2.c Aromatic/amide H refined with riding coordinates:
 C15(H15), C14(H14), C17(H17)
2.d Idealised Me refined as rotating group:
 C19(H19A,H19B,H19C), C18(H18A,H18B,H18C), C2(H2A,H2B,H2C), C1(H1A,H1B,H1C)
;
_olex2_submission_special_instructions 'No special instructions were received'
_publcif_info_exptl_table_max_cols 4
_publcif_info_exptl_table_use_headnotes n
_publcif_funding_html
;
;