Side-on Dinitrogen Complexes of Titanocenes with Disubstituted Cyclopentadienyl Ligands: Synthesis, Structure, and Spectroscopic Characterization
Semproni, Scott P.; Milsmann, Carsten; Chirik, Paul J.; Organometallics 31 (2012) 3672–; doi:10.1021/om300156z

data_4076610
_publ_section_title
;
 Side-on Dinitrogen Complexes of Titanocenes with Disubstituted
 Cyclopentadienyl Ligands: Synthesis, Structure, and Spectroscopic
 Characterization
;
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              3672
_journal_paper_doi               10.1021/om300156z
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C50 H62 B O Ti'
_chemical_formula_weight         737.71
_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                90.000
_cell_angle_beta                 96.143(5)
_cell_angle_gamma                90.000
_cell_formula_units_Z            4
_cell_length_a                   11.073(5)
_cell_length_b                   31.309(5)
_cell_length_c                   12.392(5)
_cell_measurement_reflns_used    9615
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      65.72
_cell_measurement_theta_min      2.82
_cell_volume                     4271(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP3 (Farraguia, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Giacavazzo, 1993)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 'ACTA 50'
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device_type  'Bruker APEX II CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0235
_diffrn_reflns_av_sigmaI/netI    0.0231
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       36
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            27152
_diffrn_reflns_theta_full        'ACTA 50'
_diffrn_reflns_theta_max         65.74
_diffrn_reflns_theta_min         2.82
_exptl_absorpt_coefficient_mu    1.946
_exptl_absorpt_correction_T_max  0.7526
_exptl_absorpt_correction_T_min  0.5904
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.147
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1588
_exptl_crystal_size_max          0.363
_exptl_crystal_size_mid          0.097
_exptl_crystal_size_min          0.094
_refine_diff_density_max         0.614
_refine_diff_density_min         -0.382
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.972
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     581
_refine_ls_number_reflns         7100
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.976
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0467
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0505P)^2^+3.8570P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1130
_refine_ls_wR_factor_ref         0.1166
_reflns_number_gt                6504
_reflns_number_total             7100
_reflns_threshold_expression     >2\s(I)
_cod_duplicate_entry             4079028
_cod_data_source_file            om300156z_si_003.cif
_cod_data_source_block           sps46
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4076610