An orthorhombic polymorph of dichlorobis[4-(dimethylamino)phenyl]tellurium
Beckmann, Jens; Dakternieks, Dainis; Duthie, Andrew; Mitchell, Cassandra; Acta Crystallographica Section E 61 (2005) o986–o987; doi:10.1107/S1600536805007336

data_2205402
_publ_section_title
;
 An orthorhombic polymorph of
 dichlorobis[4-(dimethylamino)phenyl]tellurium
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o986
_journal_page_last               o987
_journal_paper_doi               10.1107/S1600536805007336
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C16 H20 Cl2 N2 Te'
_chemical_formula_moiety         'C16 H20 Cl2 N2 Te'
_chemical_formula_sum            'C16 H20 Cl2 N2 Te'
_chemical_formula_weight         438.84
_chemical_name_common
;
dichlorobis[4-(dimethylamino)phenyl]tellurium
;
_chemical_name_systematic
;
dichlorobis[4-(dimethylamino)phenyl]tellurium
;
_space_group_IT_number           73
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-I 2b 2c'
_symmetry_space_group_name_H-M   'I b c a'
_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            16
_cell_length_a                   16.0504(10)
_cell_length_b                   16.4302(10)
_cell_length_c                   26.5331(16)
_cell_measurement_reflns_used    5119
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      27.51
_cell_measurement_theta_min      2.35
_cell_volume                     6997.1(7)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'DIAMOND (Bergerhoff, 1996)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0168
_diffrn_reflns_av_sigmaI/netI    0.0130
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            20865
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         1.53
_exptl_absorpt_coefficient_mu    2.001
_exptl_absorpt_correction_T_max  0.549
_exptl_absorpt_correction_T_min  0.491
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.666
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             3456
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.341
_refine_diff_density_min         -0.492
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.110
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         4006
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.110
_refine_ls_R_factor_all          0.0240
_refine_ls_R_factor_gt           0.0216
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0239P)^2^+11.1642P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0554
_refine_ls_wR_factor_ref         0.0568
_reflns_number_gt                3693
_reflns_number_total             4006
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            br6185.cif
_cod_data_source_block           I
_cod_depositor_comments
;
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 
;
_cod_database_code               2205402
_cod_database_fobs_code          2205402