Mono(cycloheptatrienyl) Tantalum Chemistry: Synthesis and Characterization of New Tantalum Halide, Hydride, and Alkyl Species
Wontae Noh; Gregory S. Girolami; Inorganic Chemistry 47 (2008) 10682–10691; doi:10.1021/ic8015035

data_4306687
_publ_section_title
;
Mono(cycloheptatrienyl) Tantalum Chemistry: Synthesis and Characterization
of New Tantalum Halide, Hydride, and Alkyl Species
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10682
_journal_page_last               10691
_journal_paper_doi               10.1021/ic8015035
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C17 H22 Br Ta'
_chemical_formula_weight         487.21
_chemical_name_systematic
; 
 ? 
;
_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                103.903(6)
_cell_angle_beta                 90.182(6)
_cell_angle_gamma                91.093(6)
_cell_formula_units_Z            4
_cell_length_a                   9.352(3)
_cell_length_b                   11.499(4)
_cell_length_c                   15.065(5)
_cell_measurement_temperature    193(2)
_cell_volume                     1572.3(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0648
_diffrn_reflns_av_sigmaI/netI    0.1154
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            16670
_diffrn_reflns_theta_full        25.42
_diffrn_reflns_theta_max         25.42
_diffrn_reflns_theta_min         1.39
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    9.517
_exptl_absorpt_correction_type   integration
_exptl_crystal_density_diffrn    2.058
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.794
_refine_diff_density_min         -1.656
_refine_diff_density_rms         0.131
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.835
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     353
_refine_ls_number_reflns         5791
_refine_ls_number_restraints     323
_refine_ls_restrained_S_all      0.819
_refine_ls_R_factor_all          0.0670
_refine_ls_R_factor_gt           0.0349
_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^)+(0.0200P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0665
_refine_ls_wR_factor_ref         0.0690
_reflns_number_gt                3333
_reflns_number_total             5791
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic8015035_si_002_4.cif
_cod_data_source_block           f81mface
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_database_code               4306687