Steric Effects in Reactions of Decamethyltitanocene Hydride with Internal Alkynes, Conjugated Diynes, and Conjugated Dienes
Pinkas, Jiří; Gyepes, Róbert; Císařová, Ivana; Kubišta, Jiří; Horáček, Michal; Mach, Karel; Organometallics  (2014) 140702161538000–; doi:10.1021/om500296h

data_4083877
_publ_section_title
;
 Steric Effects in Reactions of Decamethyltitanocene Hydride with
 Internal Alkynes, Conjugated Diynes, and Conjugated Dienes
;
_journal_name_full               Organometallics
_journal_page_first              140702161538000
_journal_paper_doi               10.1021/om500296h
_journal_year                    2014
_chemical_formula_moiety         'C29 H49 Si Ti'
_chemical_formula_sum            'C29 H49 Si Ti'
_chemical_formula_weight         473.67
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.4544(7)
_cell_length_b                   11.2899(4)
_cell_length_c                   12.8164(4)
_cell_measurement_reflns_used    9915
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      27.41
_cell_measurement_theta_min      2.622
_cell_volume                     2814.97(17)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0355
_diffrn_reflns_av_sigmaI/netI    0.0306
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            34623
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    0.360
_exptl_absorpt_correction_T_max  0.8813
_exptl_absorpt_correction_T_min  0.7715
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.118
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1036
_exptl_crystal_size_max          0.76
_exptl_crystal_size_mid          0.39
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.306
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.048
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.06(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     517
_refine_ls_number_reflns         6483
_refine_ls_number_restraints     19
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0467
_refine_ls_R_factor_gt           0.0369
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0589P)^2^+0.5161P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0907
_refine_ls_wR_factor_ref         0.0963
_reflns_number_gt                5622
_reflns_number_total             6461
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om500296h_si_001.cif
_cod_data_source_block           4b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      Pna21
_cod_database_code               4083877