A general one-pot synthesis for elusive 2-substituted indenes: does bis[2-(tert-butyl)indenyl]zirconium(IV) dichloride/MAO polymerise ethene?
Möller, Andreas C; Blom, Richard; Heyn, Richard H.; Swang, Ole; Kopf, Jürgen; Seraidaris, Tanja; Dalton transactions (Cambridge, England : 2003)  (2006) 2098–2105; doi:10.1039/b516130d

data_7006987
_publ_section_title
;
 A general one-pot synthesis for elusive 2-substituted indenes: does
 bis[2-(tert-butyl)indenyl]zirconium(IV) dichloride/MAO polymerise
 ethene?
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2098
_journal_page_last               2105
_journal_paper_doi               10.1039/b516130d
_journal_year                    2006
_chemical_formula_moiety         'C26 H30 Cl2 Zr'
_chemical_formula_sum            'C26 H30 Cl2 Zr'
_chemical_formula_weight         504.62
_chemical_name_common
'Bis(2-tert-butylindenyl)zirconium(IV) Dichloride'
_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                 116.2000(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.6370(8)
_cell_length_b                   15.3389(7)
_cell_length_c                   18.6134(8)
_cell_measurement_temperature    153(2)
_cell_volume                     4774.3(4)
_computing_cell_refinement       'SMART (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'PLATON (Spek, 1990)'
_computing_publication_material  'PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'CCD Apex area detector'
_diffrn_measurement_method       'phi and omega 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  0.0516
_diffrn_reflns_av_sigmaI/netI    0.0497
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            63773
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         1.22
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  .
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.694
_exptl_absorpt_correction_T_max  0.8456
_exptl_absorpt_correction_T_min  0.7228
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2000)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.404
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             2080
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.994
_refine_diff_density_min         -0.753
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     535
_refine_ls_number_reflns         13804
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.0489
_refine_ls_R_factor_gt           0.0359
_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^)+(0.0307P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0702
_refine_ls_wR_factor_ref         0.0735
_reflns_number_gt                11122
_reflns_number_total             13804
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b516130d.txt
_cod_data_source_block           f1a2bjk
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7006987