Syntheses and Structures of Metallocene Methyltrihydroborate Derivativies: Cp2ZrCl{(μ-H)2BHCH3}, Cp2Zr{(μ-H)2BHCH3}2, and Cp2Ti{(μ-H)2BHCH3}
Fu-Chen Liu; Ko-Yu Chen; Jung-Hua Chen; Gene-Hsian Lee; Shie-Ming Peng; Inorganic Chemistry 42 (2003) 1758–1763; doi:10.1021/ic020597e

data_4313243
_publ_section_title
;
 Syntheses and Structures of Metallocene Methyltrihydroborate
 Derivativies: Cp2ZrCl{(\m-H)2BHCH3}, Cp2Zr{(\m-H)2BHCH3}2, and
 Cp2Ti{(\m-H)2BHCH3}
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1758
_journal_page_last               1763
_journal_paper_doi               10.1021/ic020597e
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C12 H22 B2 Zr'
_chemical_formula_weight         279.14
_chemical_name_systematic
;
  ?
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 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                   15.2949(4)
_cell_length_b                   9.3417(2)
_cell_length_c                   9.3211(2)
_cell_measurement_reflns_used    all
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.55
_cell_volume                     1331.80(5)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       'NONIUS COLLECT'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(1)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'NONIUS KappaCCD'
_diffrn_measurement_method       '\w scans'
_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  0.0473
_diffrn_reflns_av_sigmaI/netI    0.0592
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7406
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.55
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.791
_exptl_absorpt_correction_T_max  0.911
_exptl_absorpt_correction_T_min  0.855
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.468
_refine_diff_density_min         -1.571
_refine_diff_density_rms         0.127
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.34(14)
_refine_ls_extinction_coef       0.0102(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   1.167
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         2699
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.165
_refine_ls_R_factor_all          0.0687
_refine_ls_R_factor_gt           0.0537
_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^)+(0.0149P)^2^+7.1028P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1142
_refine_ls_wR_factor_ref         0.1194
_reflns_number_gt                2226
_reflns_number_total             2699
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic020597e_2.cif
_cod_data_source_block           ic8923
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               4313243