(<i>R</i>)-4-(4-Aminophenyl)-2,2,4-trimethylchroman and (<i>S</i>)-4-(4-aminophenyl)-2,2,4-trimethylthiachroman
Frampton, Christopher S.; MacNicol, David D.; Wilson, Derek R.; Acta Crystallographica Section C 67 (2011) o188–o191; doi:10.1107/S0108270111012157

data_2018054
_publ_section_title
;
 (<i>R</i>)-4-(4-Aminophenyl)-2,2,4-trimethylchroman and
 (<i>S</i>)-4-(4-aminophenyl)-2,2,4-trimethylthiachroman
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_journal_coeditor_code           BM3104
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o188
_journal_page_last               o191
_journal_paper_doi               10.1107/S0108270111012157
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C18 H20 O2'
_chemical_formula_moiety         'C18 H20 O2'
_chemical_formula_sum            'C18 H20 O2'
_chemical_formula_weight         268.34
_chemical_name_common
;
racemic guest-free Dianin's compound
;
_chemical_name_systematic
;
4-(4-hydroxyphenyl)-2,2,4-trimethylchroman
;
_space_group_crystal_system      hexagonal
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   26.7321(5)
_cell_length_b                   26.7321(5)
_cell_length_c                   10.8700(3)
_cell_measurement_reflns_used    6337
_cell_measurement_temperature    100.0(10)
_cell_measurement_theta_max      76.0230
_cell_measurement_theta_min      3.3038
_cell_volume                     6727.1(3)
_computing_cell_refinement       'CrysAlisPro (Agilent Technologies, 2010)'
_computing_data_collection       'CrysAlisPro (Agilent Technologies, 2010)'
_computing_data_reduction        'CrysAlisPro (Agilent Technologies, 2010)'
_computing_molecular_graphics
;
SHELXTL (Sheldrick, 2008) and Mercury (Version 2.4; Macrae <i>et
al.</i>, 2008)
;
_computing_publication_material
;
SHELXTL (Sheldrick, 2008) and Mercury (Version 2.4; Macrae <i>et
al.</i>, 2008)
;
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0(10)
_diffrn_detector_area_resol_mean 10.5598
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
'Agilent SuperNova Dual (Cu at zero) with Atlas detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray source'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0183
_diffrn_reflns_av_sigmaI/netI    0.0150
_diffrn_reflns_limit_h_max       33
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            11837
_diffrn_reflns_theta_full        74.49
_diffrn_reflns_theta_max         74.49
_diffrn_reflns_theta_min         9.02
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.599
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.83552
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrysAlisPro; Agilent Technologies, 2010)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.192
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2592
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.257
_refine_diff_density_min         -0.255
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     188
_refine_ls_number_reflns         3047
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.002
_refine_ls_R_factor_all          0.0390
_refine_ls_R_factor_gt           0.0371
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.1000P)^2^+3.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1227
_refine_ls_wR_factor_ref         0.1261
_reflns_number_gt                2871
_reflns_number_total             3047
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bm3104.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

data name '_iucr_refine_instruction_details' was replaced with
'_iucr_refine_instructions_details' as specified in the replacement
file 'data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 9268 2022-04-12 08:56:07Z antanas 
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_cod_database_code               2018054
_cod_database_fobs_code          2018054