Neutral iridium catalysts with chiral phosphine-carboxy ligands for asymmetric hydrogenation of unsaturated carboxylic acids.
Yang, Shuang; Che, Wen; Wu, Hui-Ling; Zhu, Shou-Fei; Zhou, Qi-Lin; Chemical science 8 (2017) 1977–1980; doi:10.1039/c6sc03764j

data_1544658
_publ_section_title
;
 Neutral iridium catalysts with chiral phosphine-carboxy ligands for
 asymmetric hydrogenation of unsaturated carboxylic acids.
;
_journal_issue                   3
_journal_name_full               'Chemical science'
_journal_page_first              1977
_journal_page_last               1980
_journal_paper_doi               10.1039/c6sc03764j
_journal_volume                  8
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_sum            'C39 H36 Cl2 Ir O2 P'
_chemical_formula_weight         830.75
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-08-12 deposited with the CCDC.
2016-11-15 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
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_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.385(3)
_cell_length_b                   16.220(3)
_cell_length_c                   10.9215(15)
_cell_measurement_reflns_used    5175
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.2
_cell_volume                     3283.3(10)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b42'
_computing_data_collection
'CrystalClear-SM Expert 2.1 b42 (Rigaku, 2015)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b42'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 5.814
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0734
_diffrn_reflns_av_sigmaI/netI    0.0746
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
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_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            17815
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_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         3.18
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.313
_exptl_absorpt_correction_T_max  0.6256
_exptl_absorpt_correction_T_min  0.4792
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.681
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1648
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         2.781
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_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.010(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     434
_refine_ls_number_reflns         5559
_refine_ls_number_restraints     71
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0321
_refine_ls_R_factor_gt           0.0317
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0131P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0748
_refine_ls_wR_factor_ref         0.0750
_reflns_number_gt                5430
_reflns_number_total             5559
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6sc03764j2.cif
_cod_data_source_block           m20160714c1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/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.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to
/usr/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.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to
/usr/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 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 1544658.cif.

 Adding full bibliography for 1544658.cif.
;
_cod_original_cell_volume        3283.2(10)
_cod_original_sg_symbol_H-M      C2
_cod_database_code               1544658