Technetium tetrachloride as a precursor for small technetium(IV) complexes.
Hagenbach, Adelheid; Yegen, Eda; Abram, Ulrich; Inorganic chemistry 45 (2006) 7331–7338; doi:10.1021/ic060896u

data_4350440
_publ_section_title
;
 Technetium tetrachloride as a precursor for small technetium(IV)
 complexes.
;
_journal_issue                   18
_journal_name_full               'Inorganic chemistry'
_journal_page_first              7331
_journal_page_last               7338
_journal_paper_doi               10.1021/ic060896u
_journal_volume                  45
_journal_year                    2006
_chemical_formula_moiety         TcCl4(THF)2
_chemical_formula_sum            'C8 H16 Cl4 O2 Tc'
_chemical_formula_weight         384.01
_chemical_name_common            TcCl4(THF)2
_chemical_name_systematic
;
 Tetrachlorobis(tetrahydrofurane)technetium(IV)
;
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_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
_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                   7.7373(7)
_cell_length_b                   12.6583(16)
_cell_length_c                   13.9407(13)
_cell_measurement_reflns_used    9303
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.63
_cell_measurement_theta_min      3.33
_cell_volume                     1365.4(2)
_computing_cell_refinement       'STOE X-AREA'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-RED'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'STOE IPDS 2T'
_diffrn_measurement_method       'rotation method'
_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  0.0655
_diffrn_reflns_av_sigmaI/netI    0.0298
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            4482
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.41
_diffrn_standards_decay_%        0.1
_exptl_absorpt_coefficient_mu    1.816
_exptl_absorpt_correction_T_max  0.6947
_exptl_absorpt_correction_T_min  0.5263
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'X-Red/X-Shape, Fa. STOE'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.868
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             764
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.780
_refine_diff_density_min         -1.160
_refine_diff_density_rms         0.155
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.05(7)
_refine_ls_extinction_coef       0.032(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    'riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         3086
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0522
_refine_ls_R_factor_gt           0.0518
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1191P)^2^+0.5582P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1419
_refine_ls_wR_factor_ref         0.1425
_reflns_number_gt                3037
_reflns_number_total             3086
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic060896usi20060523_100113.cif
_cod_data_source_block           tccl4thf
_cod_database_code               4350440