Synthesis of a Gallaarsene {HC[C(Me)N-2,6- i-Pr<sub>2</sub>-C<sub>6</sub>H<sub>3</sub>]<sub>2</sub>}GaAsCp* Containing a Ga═As Double Bond.
Helling, Christoph; Wölper, Christoph; Schulz, Stephan; Journal of the American Chemical Society 140 (2018) 5053–5056; doi:10.1021/jacs.8b02447

data_4132230
_publ_contact_author
;
         Prof. Dr. Schulz, Stephan
         Fachbereich Chemie der
         Universit\"at Duisburg-Essen
         Campus Essen, Universit\"atsstr. 7
         D-45141 Essen, Germany
;
_publ_section_title
;
 Synthesis of a Gallaarsene {HC[C(Me)N-2,6-
 i-Pr<sub>2</sub>-C<sub>6</sub>H<sub>3</sub>]<sub>2</sub>}GaAsCp*
 Containing a Ga&#x2550;As Double Bond.
;
_journal_issue                   15
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5053
_journal_page_last               5056
_journal_paper_doi               10.1021/jacs.8b02447
_journal_volume                  140
_journal_year                    2018
_chemical_formula_sum            'C39 H56 As Ga N2'
_chemical_formula_weight         697.49
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2016/6
_cell_angle_alpha                87.481(2)
_cell_angle_beta                 81.731(2)
_cell_angle_gamma                73.919(2)
_cell_formula_units_Z            4
_cell_length_a                   11.8364(5)
_cell_length_b                   18.1069(8)
_cell_length_c                   18.3359(8)
_cell_measurement_reflns_used    9171
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      32.62
_cell_measurement_theta_min      2.41
_cell_volume                     3736.7(3)
_computing_cell_refinement       'BRUKER D8 KAPPA APEX 2 (3.0-2009)'
_computing_data_collection       'BRUKER D8 KAPPA APEX 2 (3.0-2009)'
_computing_data_reduction        'BRUKER D8 KAPPA APEX 2 (3.0-2009)'
_computing_molecular_graphics    'BRUKER AXS SHELXTL (c) 2008 / Vers. 2008/4'
_computing_publication_material  'BRUKER AXS SHELXTL (c) 2008 / Vers. 2008/4'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'BRUKER D8 KAPPA APEX 2 (3.0-2009)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type
; 
 Bruker D8 KAPPA series II with APEX II area detector system
;
_diffrn_measurement_method
;
 Data collection strategy APEX 2/COSMO
;
_diffrn_radiation_monochromator  'Triumph Goebel mirror'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0344
_diffrn_reflns_av_unetI/netI     0.0306
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.972
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            44846
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.972
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         33.287
_diffrn_reflns_theta_min         1.618
_exptl_absorpt_coefficient_mu    1.642
_exptl_absorpt_correction_T_max  0.75
_exptl_absorpt_correction_T_min  0.58
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   TWINABS
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.240
_exptl_crystal_description       tablet
_exptl_crystal_F_000             1472
_exptl_crystal_size_max          0.578
_exptl_crystal_size_mid          0.208
_exptl_crystal_size_min          0.118
_refine_diff_density_max         0.729
_refine_diff_density_min         -0.425
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     827
_refine_ls_number_reflns         27661
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0473
_refine_ls_R_factor_gt           0.0324
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0385P)^2^+1.6516P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0754
_refine_ls_wR_factor_ref         0.0822
_reflns_Friedel_coverage         0.000
_reflns_number_gt                22924
_reflns_number_total             27661
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b02447_si_002.cif
_cod_data_source_block           ch_101d_tw5
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_atom_sites_solution_secondary' value 'diffmap' was
changed to 'difmap'.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_database_code               4132230
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.450
_shelx_estimated_absorpt_t_max   0.830
_shelx_res_checksum              88449
_shelx_hkl_checksum              98635