6-Methyl-3-phenylthiochroman-4-one and 6-Methoxy-3-phenylthiochroman-4-one: Configurational Preference of the Phenylthio Group at the Third Position due to Remote Substitution
Sriram, D.; Srinivasan, S.; Santhosh, K.C.; Balasubramanian, K.K.; Acta Crystallographica Section C 53 (1997) 1073–1075; doi:10.1107/S010827019700396X

data_2006438
_publ_section_title
;
 6-Methyl-3-phenylthiochroman-4-one and
 6-Methoxy-3-phenylthiochroman-4-one: Configurational Preference of the
 Phenylthio Group at the Third Position due to Remote Substitution
;
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1073
_journal_page_last               1075
_journal_paper_doi               10.1107/S010827019700396X
_journal_volume                  53
_journal_year                    1997
_chemical_formula_sum            'C16 H14 O2 S'
_chemical_formula_weight         270.33
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 93.24(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.28(5)
_cell_length_b                   9.83(4)
_cell_length_c                   15.24(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12
_cell_measurement_theta_min      8
_cell_volume                     1388(13)
_computing_cell_refinement       'CAD4 Software'
_computing_data_collection       'CAD4 Software (Enraf-Nonius, 1989)'
_computing_data_reduction        'CAD4 Software'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       '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  0.0414
_diffrn_reflns_av_sigmaI/netI    0.0258
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            2061
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         2.20
_diffrn_standards_decay_%        3.5
_diffrn_standards_interval_time  60
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.228
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.295
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    none
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.249
_refine_diff_density_min         -0.223
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.080
_refine_ls_goodness_of_fit_obs   1.107
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         1909
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.080
_refine_ls_restrained_S_obs      1.107
_refine_ls_R_factor_all          0.0608
_refine_ls_R_factor_obs          .0491
_refine_ls_shift/esd_max         -0.001
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     'w = 1/[\s^2^(Fo^2^)+(0.0822P)^2^+0.3283P]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1305
_refine_ls_wR_factor_obs         .1225
_reflns_number_observed          1631
_reflns_number_total             1909
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            vj1051.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0822P)^2^+0.3283P]' was changed to 'calc'. New tag
'_refine_ls_weighting_details' was created. The value of the new tag
was set to 'w = 1/[\s^2^(Fo^2^)+(0.0822P)^2^+0.3283P]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1387.(13)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2006438