(Fluorenyl)titanium Triisopropoxide and Bis(fluorenyl)titanium Diisopropoxide: A Facile Synthesis, Molecular Structure, and Catalytic Activity in Styrene Polymerization
Knjazhanski, Sergei Ya.; Cadenas, Gregorio; García, Maricela; Pérez, Catalina M.; Nifant'ev, Ilya E.; Kashulin, Igor A.; Ivchenko, Pavel V.; Lyssenko, Konstantin A.; Organometallics 21 (2002) 3094–; doi:10.1021/om011080y

data_4076762
_publ_section_title
;
 (Fluorenyl)titanium Triisopropoxide and Bis(fluorenyl)titanium
 Diisopropoxide:&#x00A0; A Facile Synthesis, Molecular Structure, and
 Catalytic Activity in Styrene Polymerization
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              3094
_journal_paper_doi               10.1021/om011080y
_journal_volume                  21
_journal_year                    2002
_chemical_formula_moiety         '? C44 H58 O6 Ti2'
_chemical_formula_sum            'C44 H58 O6 Ti2'
_chemical_formula_weight         778.70
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   difmap
_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                   11.9590(17)
_cell_length_b                   16.271(3)
_cell_length_c                   21.310(3)
_cell_measurement_reflns_used    986
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      28
_cell_measurement_theta_min      4
_cell_volume                     4146.6(11)
_computing_cell_refinement       'SMART (Bruker, 1998b)'
_computing_data_collection       'SMART (Bruker, 1998b)'
_computing_data_reduction        'SAINTPlus (Bruker, 1998a)'
_computing_molecular_graphics    'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_computing_publication_material  'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_computing_structure_refinement  'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_computing_structure_solution    'SHELXTL ver. 5.1 (Sheldrick, 1998b)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD 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  0.0399
_diffrn_reflns_av_sigmaI/netI    0.0395
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            19432
_diffrn_reflns_theta_full        28.99
_diffrn_reflns_theta_max         28.99
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.430
_exptl_absorpt_correction_T_max  0.956
_exptl_absorpt_correction_T_min  0.894
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS(Sheldrick, 1998a)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             1656
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.862
_refine_diff_density_min         -0.363
_refine_diff_density_rms
;0.110  
Bruker (1998a) SAINTPlus Data Reduction and Correction Program v. 6.01, Bruker 
AXS, Madison, Wisconsin, USA. 

Bruker (1998b) SMART. Bruker Molecular Analysis Research Tool, 
v. 5.059. Bruker AXS, Madison, Wisconsin, USA. 

Sheldrick G.M. (1998a). SADABS v.2.01, Bruker/Siemens Area Detector 
Absorption Correction Program, Bruker AXS, Madison, Wisconsin, USA. 

Sheldrick G.M. (1998b). SHELXTL v. 5.10, Structure Determination Software 
Suite, Bruker AXS, Madison, Wisconsin, USA. 
;
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     351
_refine_ls_number_reflns         5500
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0808
_refine_ls_R_factor_gt           0.0600
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0900P)^2^+0.8000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1467
_refine_ls_wR_factor_ref         0.1618
_reflns_number_gt                3893
_reflns_number_total             5500
_reflns_threshold_expression     I>2s(I)
_cod_data_source_file            om011080y.cif
_cod_data_source_block           s1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        4146.6(10)
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               4076762