Reactivity of Permethylzirconocene and Permethyltitanocene toward Disubstituted 1,3-Butadiynes: η4- vs η2-Complexation or C-C Coupling with the Permethyltitanocene
Paul-Michael Pellny; Frank G. Kirchbauer; Vladimir V. Burlakov; Wolfgang Baumann; Anke Spannenberg; Uwe Rosenthal; Journal of the American Chemical Society 121 (1999) 8313–8323; doi:10.1021/ja991046z

data_4116519
_publ_section_title
;
 Reactivity of Permethylzirconocene and Permethyltitanocene toward
 Disubstituted 1,3-Butadiynes: \h4- vs \h2-Complexation or C-C Coupling
 with the Permethyltitanocene
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8313
_journal_page_last               8323
_journal_paper_doi               10.1021/ja991046z
_journal_volume                  121
_journal_year                    1999
_chemical_formula_sum            'C31 H48 O2 Si2 Ti'
_chemical_formula_weight         556.77
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                92.07(3)
_cell_angle_beta                 100.15(3)
_cell_angle_gamma                114.87(3)
_cell_formula_units_Z            2
_cell_length_a                   10.567(2)
_cell_length_b                   12.213(2)
_cell_length_c                   13.991(3)
_cell_measurement_reflns_used    5000
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      20
_cell_measurement_theta_min      4
_cell_volume                     1600.2(7)
_computing_cell_refinement       STOE-CELL
_computing_data_collection       STOE-EXPOSE
_computing_data_reduction        STOE-INTEGRATE
_computing_molecular_graphics    XP
_computing_publication_material  SHELXL-93
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       STOE-IPDS
_diffrn_measurement_method       'laser scanned imaging plate'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0474
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4733
_diffrn_reflns_theta_max         24.15
_diffrn_reflns_theta_min         1.85
_diffrn_standards_interval_time  360
_diffrn_standards_number         50-200
_exptl_absorpt_coefficient_mu    0.366
_exptl_absorpt_correction_type   'mean imaging plate intensity method'
_exptl_crystal_colour            red-orange
_exptl_crystal_density_diffrn    1.156
_exptl_crystal_description       prism
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.263
_refine_diff_density_min         -0.337
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.082
_refine_ls_goodness_of_fit_obs   1.109
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         4733
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.082
_refine_ls_restrained_S_obs      1.109
_refine_ls_R_factor_all          0.0499
_refine_ls_R_factor_obs          0.0403
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0785P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1269
_refine_ls_wR_factor_obs         0.1171
_reflns_number_observed          3888
_reflns_number_total             4733
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ja991046z_7.cif
_cod_data_source_block           754
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0785P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0785P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1600.2(5)
_cod_database_code               4116519