A base-free copper-assisted synthesis of C2-symmetric spirotelluranes and biaryls based on divergent stoichiometry of Na2Te
Batabyal, Monojit; Jain, Saket; Upadhyay, Aditya; Raju, Saravanan; Kumar, Sangit; Chemical Communications  (2022) –; doi:10.1039/D2CC02181A

data_7130174
_publ_section_title
;
 A base-free copper-assisted synthesis of C2-symmetric spirotelluranes and
 biaryls based on divergent stoichiometry of Na2Te
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D2CC02181A
_journal_year                    2022
_chemical_formula_moiety         'C7 H5 O Te0.50'
_chemical_formula_sum            'C7 H5 O Te0.5'
_chemical_formula_weight         168.91
_chemical_name_common            'C7 H5 O Te0.50'
_chemical_name_systematic        'C7 H5 O Te0.50'
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2022-03-08 deposited with the CCDC.	2022-05-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 118.957(8)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   20.507(4)
_cell_length_b                   4.8515(8)
_cell_length_c                   14.046(2)
_cell_measurement_reflns_used    1772
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.06
_cell_measurement_theta_min      4.13
_cell_volume                     1222.7(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0254
_diffrn_reflns_av_unetI/netI     0.0304
_diffrn_reflns_Laue_measured_fraction_full 0.983
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            4171
_diffrn_reflns_point_group_measured_fraction_full 0.983
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.668
_diffrn_reflns_theta_min         4.129
_exptl_absorpt_coefficient_mu    2.418
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            YELLOW
_exptl_crystal_density_diffrn    1.835
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.036
_exptl_crystal_size_mid          0.031
_exptl_crystal_size_min          0.028
_refine_diff_density_max         1.020
_refine_diff_density_min         -0.773
_refine_diff_density_rms         0.088
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     79
_refine_ls_number_reflns         1563
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0369
_refine_ls_R_factor_gt           0.0316
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0371P)^2^+0.7485P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0717
_refine_ls_wR_factor_ref         0.0749
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1390
_reflns_number_total             1563
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2cc02181a2.cif
_cod_data_source_block           shelx
_cod_original_cell_volume        1222.8(4)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_original_formula_sum        'C7 H5 O Te0.50'
_cod_database_code               7130174
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              87536
_shelx_hkl_checksum              75443