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_7111702
_publ_section_title
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 A novel synthesis of calix[4]thiophenes and calix[4]furans
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_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         'C48 H64 S4'
_chemical_formula_sum            'C48 H64 S4'
_chemical_formula_weight         769.23
_chemical_melting_point          361.5(5)
_chemical_name_common            tetraspirocyclooctyl
_space_group_IT_number           78
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4cw'
_symmetry_space_group_name_H-M   'P 43'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.0646(4)
_cell_length_b                   14.0646(4)
_cell_length_c                   21.5443(17)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     4261.7(4)
_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 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0933
_diffrn_reflns_av_sigmaI/netI    0.1149
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            15601
_diffrn_reflns_theta_full        24.92
_diffrn_reflns_theta_max         24.92
_diffrn_reflns_theta_min         1.73
_exptl_absorpt_coefficient_mu    0.255
_exptl_absorpt_correction_T_max  0.9725
_exptl_absorpt_correction_T_min  0.9320
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.199
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1664
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.569
_refine_diff_density_min         -0.390
_refine_diff_density_rms         0.092
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.48(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.082
_refine_ls_hydrogen_treatment    fixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         5597
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.1234
_refine_ls_R_factor_gt           0.0801
_refine_ls_shift/su_max          0.033
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0790P)^2^+9.6210P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1854
_refine_ls_wR_factor_ref         0.2124
_reflns_number_gt                3915
_reflns_number_total             5597
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CC00437Esup1.cif
_cod_data_source_block           a9142
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '361-362' was changed to '361.5(5)' -
the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
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_cod_database_code               7111702