A novel synthesis of calix[4]thiophenes and calix[4]furans
Lee, Gon-Ann; Wang, Wen-Chieh; Shieh, Minghuey; Kuo, Ting-Shen; Chemical Communications 46 (2010) 5009–5011; doi:10.1039/c0cc00437e

data_7111703
_publ_section_title
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 A novel synthesis of calix[4]thiophenes and calix[4]furans
;
_journal_issue                   27
_journal_name_full               'Chemical Communications'
_journal_page_first              5009
_journal_page_last               5011
_journal_paper_doi               10.1039/c0cc00437e
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C36 H48 S4'
_chemical_formula_sum            'C36 H48 S4'
_chemical_formula_weight         608.98
_chemical_melting_point          317.8(3)
_chemical_name_common            octaethyl
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 112.795(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   22.0414(12)
_cell_length_b                   14.6402(7)
_cell_length_c                   11.7284(7)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     3489.1(3)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0585
_diffrn_reflns_av_sigmaI/netI    0.0524
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            12325
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    0.295
_exptl_absorpt_correction_T_max  0.9407
_exptl_absorpt_correction_T_min  0.8292
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'pale brown'
_exptl_crystal_density_diffrn    1.159
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1312
_exptl_crystal_size_max          0.66
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.319
_refine_diff_density_min         -0.381
_refine_diff_density_rms         0.123
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.110
_refine_ls_hydrogen_treatment    fixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         3083
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.110
_refine_ls_R_factor_all          0.0631
_refine_ls_R_factor_gt           0.0407
_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^)+(0.0772P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1093
_refine_ls_wR_factor_ref         0.1366
_reflns_number_gt                2380
_reflns_number_total             3083
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CC00437Esup1.cif
_cod_data_source_block           a9263
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '317.5-318' was changed to '317.8(3)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7111703