16-Isopropyl-5,9-dimethyltetracyclo[10.2.2.0^1,10^.0^4,9^]hexadec-15-ene-5,14-dicarboxylic acid ethanol hemisolvate
Wang, Hong-Xiao; Shang, Shi-Bin; Yin, Yan-Bai; Rao, Xiao-Ping; Xu, Xu; Acta Crystallographica Section E 65 (2009) o1521–; doi:10.1107/S1600536809021059

data_2222207
_publ_section_title
;16-Isopropyl-5,9-dimethyltetracyclo[10.2.2.0^1,10^.0^4,9^]hexadec-15-ene-5,14-dicarboxylic
 acid ethanol hemisolvate
;
_journal_coeditor_code           AT2806
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1521
_journal_paper_doi               10.1107/S1600536809021059
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C23 H34 O4, 0.5C2 H6 O'
_chemical_formula_moiety         'C23 H34 O4, 0.5(C2 H6 O)'
_chemical_formula_sum            'C24 H37 O4.5'
_chemical_formula_weight         397.54
_chemical_melting_point          474
_chemical_name_systematic
;
16-Isopropyl-5,9-dimethyltetracyclo[10.2.2.0^1,10^.0^4,9^]hexadec-15-ene-
5,14-dicarboxylic acid ethanol hemisolvate
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 90.12(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.682(3)
_cell_length_b                   12.476(3)
_cell_length_c                   14.629(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12
_cell_measurement_theta_min      9
_cell_volume                     2314.6(9)
_computing_cell_refinement       'CAD4 EXPRESS (Enraf--Nonius, 1989)'
_computing_data_collection       'CAD4 EXPRESS (Enraf--Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_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  0.0334
_diffrn_reflns_av_sigmaI/netI    0.0391
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4620
_diffrn_reflns_theta_full        25.27
_diffrn_reflns_theta_max         25.27
_diffrn_reflns_theta_min         1.39
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9848
_exptl_absorpt_correction_T_min  0.9773
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(XCAD4; Harms & Wocadlo, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.141
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             868
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.410
_refine_diff_density_min         -0.465
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     480
_refine_ls_number_reflns         4413
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.1110
_refine_ls_R_factor_gt           0.0771
_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^)+(0.07P)^2^+2P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1734
_refine_ls_wR_factor_ref         0.1943
_reflns_number_gt                2780
_reflns_number_total             4413
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            at2806.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               2222207
_cod_database_fobs_code          2222207