Supermesityltellurenyl bromide
Beckmann, Jens; Hesse, Malte; Acta Crystallographica Section E 63 (2007) o1674–o1675; doi:10.1107/S1600536807009749

data_2213039
_publ_section_title
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 Supermesityltellurenyl bromide
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_journal_coeditor_code           TK2139
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1674
_journal_page_last               o1675
_journal_paper_doi               10.1107/S1600536807009749
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C18 H29 Br Te'
_chemical_formula_moiety         'C18 H29 Br Te'
_chemical_formula_sum            'C18 H29 Br Te'
_chemical_formula_weight         452.92
_chemical_name_common            'Supermesityltellurenyl bromide'
_chemical_name_systematic
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2,4,6-Tri-tert-butylphenyltellurium bromide
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_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.9494(9)
_cell_length_b                   15.586(2)
_cell_length_c                   20.255(3)
_cell_measurement_reflns_used    5
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.60
_cell_measurement_theta_min      0.995
_cell_volume                     1878.2(5)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'DIAMOND (Brandenberg & Putz, 2006)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\w and \f'
_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  0.022
_diffrn_reflns_av_sigmaI/netI    0.029
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            23237
_diffrn_reflns_theta_full        30.6
_diffrn_reflns_theta_max         30.6
_diffrn_reflns_theta_min         1.7
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.703
_exptl_absorpt_correction_T_max  0.808
_exptl_absorpt_correction_T_min  0.259
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            Green
_exptl_crystal_density_diffrn    1.602
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.72
_refine_diff_density_min         -0.32
_refine_ls_abs_structure_details 'Flack (1983)'
_refine_ls_abs_structure_Flack   0.007(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.04
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         5726
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.04
_refine_ls_R_factor_all          0.025
_refine_ls_R_factor_gt           0.020
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0195P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.044
_refine_ls_wR_factor_ref         0.045
_reflns_number_gt                5273
_reflns_number_total             5726
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            tk2139.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               2213039
_cod_database_fobs_code          2213039