Cyclic NHC-stabilized silylphosphinoalanes and -gallanes.
Kapitein, Manuel; Balmer, Markus; Niemeier, Lukas; von Hänisch, Carsten; Dalton transactions (Cambridge, England : 2003) 45 (2016) 6275–6281; doi:10.1039/c5dt03889h

data_7037739
_publ_section_title
;
 Cyclic NHC-stabilized silylphosphinoalanes and -gallanes.
;
_journal_issue                   14
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6275
_journal_page_last               6281
_journal_paper_doi               10.1039/c5dt03889h
_journal_volume                  45
_journal_year                    2016
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C38 H58 Ga2 N2 P2 Si2'
_chemical_formula_sum            'C38 H58 Ga2 N2 P2 Si2'
_chemical_formula_weight         800.42
_space_group_crystal_system      orthorhombic
_space_group_IT_number           43
_space_group_name_Hall           'F 2 -2d'
_space_group_name_H-M_alt        'F d d 2'
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2015-10-27
_audit_creation_method
;
Olex2 1.2
(compiled 2015.09.30 svn.r3233 for OlexSys, GUI svn.r5103)
;
_audit_update_record
;
2015-11-05 deposited with the CCDC.
2015-12-15 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.355(3)
_cell_length_b                   52.413(9)
_cell_length_c                   10.2974(16)
_cell_measurement_temperature    100.0
_cell_volume                     8287(3)
_computing_cell_refinement       'SAINT v8.27A (Bruker, 2012)'
_computing_data_collection       'SAINT v8.27A (Bruker, 2012)'
_computing_data_reduction        'SAINT v8.27A (Bruker, 2012)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0684
_diffrn_reflns_av_unetI/netI     0.0578
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       66
_diffrn_reflns_limit_k_min       -58
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            22808
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         27.158
_diffrn_reflns_theta_min         2.652
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_exptl_absorpt_coefficient_mu    1.463
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.6079
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2012/1 (Bruker,2012) was used for absorption correction.'
_exptl_crystal_colour            'light colourless'
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.283
_exptl_crystal_description       block
_exptl_crystal_F_000             3360
_exptl_crystal_size_max          0.214
_exptl_crystal_size_mid          0.154
_exptl_crystal_size_min          0.103
_refine_diff_density_max         0.328
_refine_diff_density_min         -0.607
_refine_diff_density_rms         0.073
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.015(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         4585
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0511
_refine_ls_R_factor_gt           0.0367
_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^)+19.2350P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0617
_refine_ls_wR_factor_ref         0.0650
_reflns_Friedel_coverage         0.895
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.997
_reflns_number_gt                3944
_reflns_number_total             4585
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5dt03889h2.cif
_cod_data_source_block           compound2
_cod_depositor_comments
'Adding full bibliography for 7037738--7037743.cif.'
_cod_original_cell_volume        8287(2)
_cod_database_code               7037739
_shelxl_version_number           2014-3
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.985(14) 0.015(14)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3. Others
 Fixed Uiso: H1(0.0005)
4.a Aromatic/amide H refined with riding coordinates:
 C8(H8), C12(H12), C11(H11), C10(H10), C17(H17), C9(H9), C15(H15), C19(H19),
 C18(H18), C16(H16)
4.b Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), C2(H2A,H2B,H2C), C3(H3A,
 H3B,H3C), C5(H5A,H5B,H5C)
;
_shelx_res_checksum              86569
_olex2_submission_special_instructions 'No special instructions were received'