Displacement of ethene from the decamethyltitanocene-ethene complex with internal alkynes, substituent-dependent alkyne-to-allene rearrangement, and the electronic transition relevant to the back-bonding interaction.
Pinkas, Jiří; Gyepes, Róbert; Císařová, Ivana; Kubišta, Jiří; Horáček, Michal; Mach, Karel; Dalton transactions (Cambridge, England : 2003) 44 (2015) 7276–7291; doi:10.1039/c5dt00351b

data_7034504
_publ_section_title
;
 Displacement of ethene from the decamethyltitanocene-ethene complex with
 internal alkynes, substituent-dependent alkyne-to-allene rearrangement,
 and the electronic transition relevant to the back-bonding interaction.
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7276
_journal_page_last               7291
_journal_paper_doi               10.1039/c5dt00351b
_journal_volume                  44
_journal_year                    2015
_chemical_compound_source        'synthesized by the authors'
_chemical_formula_moiety         'C29 H48 Si Ti'
_chemical_formula_sum            'C29 H48 Si Ti'
_chemical_formula_weight         472.66
_chemical_name_systematic
; 
 ? 
;
_chemical_properties_physical    'Air-sensitive, Moisture-sensitive'
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-02-23 deposited with the CCDC.
2015-02-26 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.201(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.4682(7)
_cell_length_b                   12.6977(5)
_cell_length_c                   22.4521(9)
_cell_measurement_reflns_used    9527
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.44
_cell_measurement_theta_min      2.28
_cell_volume                     5550.2(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0335
_diffrn_reflns_av_sigmaI/netI    0.0551
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            68429
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.05
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.365
_exptl_absorpt_correction_T_max  0.8912
_exptl_absorpt_correction_T_min  0.7846
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.131
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2064
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.301
_refine_diff_density_min         -0.239
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1182
_refine_ls_number_reflns         25472
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0662
_refine_ls_R_factor_gt           0.0420
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0511P)^2^+0.0528P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0868
_refine_ls_wR_factor_ref         0.0974
_reflns_number_gt                20478
_reflns_number_total             25472
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c5dt00351b2.cif
_cod_data_source_block           7
_cod_depositor_comments
;Adding full bibliography for 7034502--7034505.cif.

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'multi-scans' was replaced
with the value 'multi-scan' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7034504