Dicationic phosphonium salts: Lewis acid initiators for the Mukaiyama-aldol reaction
Barrado, Alejandro G.; Bayne, Julia M.; Johnstone, Timothy C.; Lehmann, Christian W.; Stephan, Douglas W.; Alcarazo, Manuel; Dalton Transactions  (2017) –; doi:10.1039/C7DT03197A

data_7044753
_publ_section_title
;
 Dicationic phosphonium salts: Lewis acid initiators for the
 Mukaiyama-aldol reaction
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/C7DT03197A
_journal_year                    2017
_chemical_compound_source        acetonitrile
_chemical_formula_moiety         '2(C F3 O3 S), C24 H22 N P'
_chemical_formula_sum            'C26 H22 F6 N O6 P S2'
_chemical_formula_weight         653.53
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_code                GAA-GA-293-01
_audit_creation_date             2015-01-16
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.12 svn.r3133 for OlexSys, GUI svn.r4987)
;
_audit_update_record
;
2017-07-25 deposited with the CCDC.
2017-11-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.4003(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.4391(3)
_cell_length_b                   10.3400(4)
_cell_length_c                   28.9765(10)
_cell_measurement_reflns_used    9901
_cell_measurement_temperature    100
_cell_measurement_theta_max      67.1951
_cell_measurement_theta_min      4.5419
_cell_volume                     2819.78(17)
_computing_cell_refinement       'SAINT software (Bruker AXS, 2004)'
_computing_data_collection       'APEX2 (Bruker AXS, 2005-2013)'
_computing_data_reduction        'SAINT software (Bruker AXS, 2004)'
_computing_molecular_graphics    'DIAMOND (Crystal Impact GbR, 1997-2012)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL (G. M. Sheldrick, 2013)'
_computing_structure_solution    'SHELXS (G. M. Sheldrick, 2013)'
_diffrn_ambient_temperature      100
_diffrn_detector_area_resol_mean 66.67
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker AXS X8 Proteum'
_diffrn_measurement_method       'CCD \f- and \w-scans'
_diffrn_radiation_monochromator  'MONTEL graded multilayer optic'
_diffrn_radiation_type           Cu-K\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0414
_diffrn_reflns_av_unetI/netI     0.0192
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            65121
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         67.808
_diffrn_reflns_theta_min         3.059
_diffrn_source                   '0.2 x 2mm^2^ focus rotating anode'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.001
_exptl_absorpt_correction_T_max  0.84597
_exptl_absorpt_correction_T_min  0.61922
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 2012)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.539
_exptl_crystal_description       prism
_exptl_crystal_F_000             1336
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.268
_refine_diff_density_min         -0.551
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     380
_refine_ls_number_reflns         5075
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0405
_refine_ls_R_factor_gt           0.0379
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0531P)^2^+2.6441P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0977
_refine_ls_wR_factor_ref         0.1001
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4714
_reflns_number_total             5075
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt03197a2.cif
_cod_data_source_block           9146sadabs
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'MONOCLINIC' changed to 'monoclinic'
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 
;
_cod_original_sg_symbol_Hall     '-p 2yn'
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7044753
_shelx_estimated_absorpt_t_max   0.755
_shelx_estimated_absorpt_t_min   0.476
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C8(H8), C9(H9), C10(H10), C11(H11), C12(H12),
 C14(H14), C15(H15), C16(H16), C17(H17), C18(H18), C20(H20), C21(H21), C22(H22),
  C23(H23), C24(H24)
2.b Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C)
;
_shelx_res_checksum              66082
_olex2_submission_special_instructions 'No special instructions were received'
_shelxl_version_number           2014-3