Achieving conformational control over C-C, C-N and C-O bonds in biaryls, N,N'-diarylureas and diaryl ethers: advantages of a relay axis.
Betson, Mark S; Bracegirdle, Ann; Clayden, Jonathan; Helliwell, Madeleine; Lund, Andrew; Pickworth, Mark; Snape, Timothy J; Worrall, Christopher P; Chemical communications (Cambridge, England)  (2007) 754–756; doi:10.1039/b614618j

data_7101708
_publ_section_title
;
 Achieving conformational control over C-C, C-N and C-O bonds in
 biaryls, N,N'-diarylureas and diaryl ethers: advantages of a relay
 axis.
;
_journal_issue                   7
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              754
_journal_page_last               756
_journal_paper_doi               10.1039/b614618j
_journal_year                    2007
_chemical_formula_sum            'C22 H30 O3 S'
_chemical_formula_weight         374.52
_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'
_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                 98.368(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3358(11)
_cell_length_b                   12.2620(17)
_cell_length_c                   20.222(3)
_cell_measurement_reflns_used    7926
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.92
_cell_measurement_theta_min      2.63
_cell_volume                     2044.9(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1272
_diffrn_reflns_av_sigmaI/netI    0.0678
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            14180
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.95
_exptl_absorpt_coefficient_mu    0.176
_exptl_absorpt_correction_T_max  0.9328
_exptl_absorpt_correction_T_min  0.9170
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.216
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.624
_refine_diff_density_min         -0.490
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     242
_refine_ls_number_reflns         3606
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0560
_refine_ls_R_factor_gt           0.0496
_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^)+(0.1009P)^2^+0.0562P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1430
_refine_ls_wR_factor_ref         0.1477
_reflns_number_gt                3062
_reflns_number_total             3606
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b614618j.txt
_cod_data_source_block           s2305m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7101708