Synthesis, structure, and reactivity of Group 4 metallacycles incorporating a Me2C-linked cyclopentadienyl-carboranyl ligand
Sit, Mei-Mei; Chan, Hoi-Shan; Xie, Zuowei; Dalton Transactions  (2008) 1454–1464; doi:10.1039/b716929a

data_7003531
_publ_section_title
;
 Synthesis, structure, and reactivity of Group 4 metallacycles
 incorporating a Me2C-linked cyclopentadienyl-carboranyl ligand
;
_journal_issue                   11
_journal_name_full               'Dalton Transactions'
_journal_page_first              1454
_journal_page_last               1464
_journal_paper_doi               10.1039/b716929a
_journal_year                    2008
_chemical_formula_sum            'C35 H51 B10 N4 Zr'
_chemical_formula_weight         727.12
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 98.678(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.4718(14)
_cell_length_b                   17.389(2)
_cell_length_c                   21.659(3)
_cell_measurement_reflns_used    936
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      22.31
_cell_measurement_theta_min      2.29
_cell_volume                     3898.8(9)
_computing_cell_refinement       'BRUKER SMART CCD DIFFRACTOMETER'
_computing_data_collection       'BRUKER SMART CCD DIFFRACTOMETER'
_computing_data_reduction        'BRUKER SMART CCD DIFFRACTOMETER'
_computing_molecular_graphics    'SIEMENS SHELXTL'
_computing_publication_material  'SIEMENS SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'BRUKER SMART CCD DIFFRACTOMETER'
_diffrn_measurement_method       'OMEGA SCAN'
_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  0.0451
_diffrn_reflns_av_sigmaI/netI    0.0578
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            26972
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.51
_exptl_absorpt_coefficient_mu    0.313
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.878306
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.239
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1516
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.794
_refine_diff_density_min         -0.432
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         9663
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0927
_refine_ls_R_factor_gt           0.0487
_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^)+(0.0702P)^2^+1.9009P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1194
_refine_ls_wR_factor_ref         0.1487
_reflns_number_gt                6202
_reflns_number_total             9663
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b716929a.txt
_cod_data_source_block           3b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7003531