Zirconocene complexes bearing novel 3-dimethylamino-1,2-dihydropentalene derived ligand systems.
Xu, Bao-Hua; Kehr, Gerald; Fröhlich, Roland; Nauha, Elisa; Erker, Gerhard; Dalton transactions (Cambridge, England : 2003) 39 (2010) 9973–9981; doi:10.1039/c0dt00515k

data_7026569
_publ_section_title
;
 Zirconocene complexes bearing novel 3-dimethylamino-1,2-dihydropentalene
 derived ligand systems.
;
_journal_issue                   41
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9973
_journal_page_last               9981
_journal_paper_doi               10.1039/c0dt00515k
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C24 H32 Cl2 N2 Zr'
_chemical_formula_weight         510.64
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 92.501(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.8693(2)
_cell_length_b                   14.3085(3)
_cell_length_c                   13.9687(3)
_cell_measurement_reflns_used    5052
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      4.08
_cell_volume                     2370.07(8)
_computing_cell_refinement       'Collect (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP (BrukerAXS, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'Montel mirror'
_diffrn_radiation_source         'rotating anode Nonius FR591'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.059
_diffrn_reflns_av_sigmaI/netI    0.0450
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15123
_diffrn_reflns_theta_full        27.92
_diffrn_reflns_theta_max         27.92
_diffrn_reflns_theta_min         4.38
_exptl_absorpt_coefficient_mu    0.702
_exptl_absorpt_correction_T_max  0.9792
_exptl_absorpt_correction_T_min  0.8170
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.431
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.202
_refine_diff_density_min         -0.740
_refine_diff_density_rms         0.098
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         5503
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0698
_refine_ls_R_factor_gt           0.0583
_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^)+(0.0660P)^2^+5.5273P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1426
_refine_ls_wR_factor_ref         0.1534
_reflns_number_gt                4679
_reflns_number_total             5503
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00515k.txt
_cod_data_source_block           erk5328
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7026569