Selective hydrosiloxane synthesis via dehydrogenative coupling of silanols with hydrosilanes catalysed by Fe complexes bearing a tetradentate PNNP ligand.
Takeshita, Tomohiro; Sato, Kazuhiko; Nakajima, Yumiko; Dalton transactions (Cambridge, England : 2003) 47 (2018) 17004–17010; doi:10.1039/c8dt04168g

data_7048028
_publ_section_title
;
 Selective hydrosiloxane synthesis via dehydrogenative coupling of
 silanols with hydrosilanes catalysed by Fe complexes bearing a
 tetradentate PNNP ligand.
;
_journal_issue                   47
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              17004
_journal_page_last               17010
_journal_paper_doi               10.1039/c8dt04168g
_journal_volume                  47
_journal_year                    2018
_chemical_formula_sum            'C38 H56 Fe N2 P2'
_chemical_formula_weight         658.63
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-09-10 deposited with the CCDC.
2018-11-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.1645(19)
_cell_length_b                   13.1906(19)
_cell_length_c                   16.823(2)
_cell_measurement_reflns_used    8026
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.1
_cell_volume                     3365.1(8)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'ORTEP3 for windows'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 5.8140
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0488
_diffrn_reflns_av_unetI/netI     0.0352
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            41837
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.449
_diffrn_reflns_theta_min         3.089
_diffrn_source                   'Rotating Anode'
_exptl_absorpt_coefficient_mu    0.573
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.958
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.300
_exptl_crystal_description       block
_exptl_crystal_F_000             1416
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.140
_refine_diff_density_max         0.363
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details
;
 Flack x determined using 2933 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.336(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     396
_refine_ls_number_reflns         7631
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0419
_refine_ls_R_factor_gt           0.0338
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0430P)^2^+0.9722P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0774
_refine_ls_wR_factor_ref         0.0802
_reflns_Friedel_coverage         0.926
_reflns_Friedel_fraction_full    0.991
_reflns_Friedel_fraction_max     0.990
_reflns_number_gt                6809
_reflns_number_total             7631
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt04168g2.cif
_cod_data_source_block           take159_a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Numerical' changed to
'numerical' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7048021--7048028.cif.
;
_cod_database_code               7048028
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.425
_shelx_estimated_absorpt_t_max   0.501
_shelx_res_checksum              43937