Acylmethyl(aryl)tellurium(iv,ii) derivatives: intramolecular secondary bonding and steric rigidity
Chauhan, Ashok K. S.; Singh, Puspendra; Srivastava, Ramesh C.; Duthie, Andrew; Voda, Andreea; Dalton Transactions  (2008) 4023–4028; doi:10.1039/b800473k

data_7003842
_publ_section_title
;
 Acylmethyl(aryl)tellurium(iv,ii) derivatives: intramolecular secondary
 bonding and steric rigidity
;
_journal_issue                   30
_journal_name_full               'Dalton Transactions'
_journal_page_first              4023
_journal_page_last               4028
_journal_paper_doi               10.1039/b800473k
_journal_year                    2008
_chemical_formula_moiety         'C14 H20 Br2 O Te'
_chemical_formula_sum            'C14 H20 Br2 O Te'
_chemical_formula_weight         491.72
_chemical_name_common
'(Isopropoylmethyl)mesityltellurium(IV) dibromide'
_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                 94.035(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8406(14)
_cell_length_b                   10.7892(17)
_cell_length_c                   17.446(3)
_cell_measurement_reflns_used    5858
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      27.54
_cell_measurement_theta_min      2.22
_cell_volume                     1659.9(5)
_computing_cell_refinement       'SMART (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'DIAMOND (Brandenberg, 2006)'
_computing_publication_material  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      130(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         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0310
_diffrn_reflns_av_sigmaI/netI    0.0361
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            9784
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.22
_exptl_absorpt_coefficient_mu    6.594
_exptl_absorpt_correction_T_max  0.4545
_exptl_absorpt_correction_T_min  0.2605
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2000)'
_exptl_crystal_colour            'Pale yellow'
_exptl_crystal_density_diffrn    1.968
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.579
_refine_diff_density_min         -0.851
_refine_diff_density_rms         0.113
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     168
_refine_ls_number_reflns         3621
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0288
_refine_ls_R_factor_gt           0.0260
_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^)+(0.0363P)^2^+0.3744P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0659
_refine_ls_wR_factor_ref         0.0672
_reflns_number_gt                3337
_reflns_number_total             3621
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b800473k.txt
_cod_data_source_block           1Bb
_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      'P 21/c'
_cod_database_code               7003842