The structures of tellurium(IV) halides in the gas phase and as solvated molecules.
Shlykov, Sergey A.; Giricheva, Nina I.; Titov, Anton V.; Szwak, Małgorzata; Lentz, Dieter; Girichev, Georgiy V.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 3245–3255; doi:10.1039/b922474b

data_7024886
_publ_section_title
;
 The structures of tellurium(IV) halides in the gas phase and as solvated
 molecules.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3245
_journal_page_last               3255
_journal_paper_doi               10.1039/b922474b
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C8 H16 F4 O2 Te'
_chemical_formula_weight         347.81
_chemical_name_systematic
;
tellurtetrafluoride tetrahydrofuran solvate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                109.140(4)
_cell_angle_beta                 101.744(6)
_cell_angle_gamma                100.421(5)
_cell_formula_units_Z            2
_cell_length_a                   6.8161(15)
_cell_length_b                   9.390(2)
_cell_length_c                   10.465(2)
_cell_measurement_reflns_used    882
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.4
_cell_measurement_theta_min      2.4
_cell_volume                     596.9(2)
_computing_cell_refinement       'SAINT (BRUKER-AXS)'
_computing_data_collection       'SMART (Bruker-AXS)'
_computing_data_reduction        'SAINT (BRUKER-AXS)'
_computing_molecular_graphics    'ORTEP for Windows (Farrugia, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'SMART CCD (Bruker-AXS)'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0134
_diffrn_reflns_av_sigmaI/netI    0.0195
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7429
_diffrn_reflns_theta_full        30.53
_diffrn_reflns_theta_max         30.53
_diffrn_reflns_theta_min         2.15
_exptl_absorpt_coefficient_mu    2.524
_exptl_absorpt_correction_T_max  1.0
_exptl_absorpt_correction_T_min  0.74
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (BRUKER-AXS)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.935
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             336
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.984
_refine_diff_density_min         -0.501
_refine_diff_density_rms         0.073
_refine_ls_extinction_coef       0.0233(10)
_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   1.059
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         3579
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0207
_refine_ls_R_factor_gt           0.0191
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0216P)^2^+0.3340P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0467
_refine_ls_wR_factor_ref         0.0475
_reflns_number_gt                3388
_reflns_number_total             3579
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b922474b.txt
_cod_data_source_block           fcnte
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7024886