Readily Accessible Unsymmetrical Unsaturated 2,6-Diisopropylphenyl N-Heterocyclic Carbene Ligands. Applications in Enantioselective Catalysis.
Tarrieu, Robert; Dumas, Adrien; Thongpaen, Jompol; Vives, Thomas; Roisnel, Thierry; Dorcet, Vincent; Crévisy, Christophe; Baslé, Olivier; Mauduit, Marc; The Journal of organic chemistry 82 (2017) 1880–1887; doi:10.1021/acs.joc.6b02888

data_4032170
_publ_section_title
;
 Readily Accessible Unsymmetrical Unsaturated 2,6-Diisopropylphenyl
 N-Heterocyclic Carbene Ligands. Applications in Enantioselective
 Catalysis.
;
_journal_issue                   4
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              1880
_journal_page_last               1887
_journal_paper_doi               10.1021/acs.joc.6b02888
_journal_volume                  82
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C19 H27 N2, F6 P'
_chemical_formula_sum            'C19 H27 F6 N2 P'
_chemical_formula_weight         428.39
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.6418(5)
_cell_length_b                   13.0731(7)
_cell_length_c                   16.4088(10)
_cell_measurement_reflns_used    7229
_cell_measurement_temperature    150
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.48
_cell_measurement_wavelength     0.71073
_cell_volume                     2068.3(2)
_computing_cell_refinement       'APEX2 (Bruker, 2014); SAINT (Bruker, 2014)'
_computing_data_collection       'SAINT (Bruker, 2014); XPREP (Sheldrick, 2014)'
_computing_data_reduction        'SAINT (Bruker, 2014); XPREP (Sheldrick, 2014)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'CRYSCALc (T. Roisnel, local program, 2015)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150
_diffrn_detector                 '(CMOS) PHOTON 100'
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'D8 VENTURE Bruker AXS'
_diffrn_measurement_method       'rotation images'
_diffrn_radiation_monochromator  'multilayer monochromator'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'Incoatec microfocus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0363
_diffrn_reflns_av_unetI/netI     0.0434
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            11458
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.475
_diffrn_reflns_theta_min         2.931
_exptl_absorpt_coefficient_mu    0.192
_exptl_absorpt_correction_T_max  0.977
_exptl_absorpt_correction_T_min  0.837
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2014). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.376
_exptl_crystal_description       prism
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.330
_exptl_crystal_size_mid          0.290
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.439
_refine_diff_density_min         -0.271
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details
;
Flack x determined using 1617 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.04(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         4699
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0519
_refine_ls_R_factor_gt           0.0439
_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^)+(0.0620P)^2^+0.7374P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1079
_refine_ls_wR_factor_ref         0.1132
_reflns_number_gt                4178
_reflns_number_total             4699
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo6b02888_si_001.cif
_cod_data_source_block           RT258
_cod_depositor_comments
;
The following automatic conversions were performed:

'_space_group_crystal_system' 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 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 4032167--4032170.cif.
;
_cod_database_code               4032170