(2-Pyridyloxy)arsines as ligands in transition metal chemistry: a stepwise As(iii) → As(ii) → As(i) reduction.
Gericke, Robert; Wagler, Jörg; Dalton transactions (Cambridge, England : 2003) 49 (2020) 10042–10051; doi:10.1039/d0dt01538e

data_7704746
_publ_section_title
;
 (2-Pyridyloxy)arsines as ligands in transition metal chemistry: a
 stepwise As(iii) \\rightarrow As(ii) \\rightarrow As(i) reduction.
;
_journal_issue                   29
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10042
_journal_page_last               10051
_journal_paper_doi               10.1039/d0dt01538e
_journal_volume                  49
_journal_year                    2020
_chemical_formula_moiety         'C23 H19 N O P, Cl'
_chemical_formula_sum            'C23 H19 Cl N O P'
_chemical_formula_weight         391.81
_space_group_crystal_system      hexagonal
_space_group_IT_number           169
_space_group_name_Hall           'P 61'
_space_group_name_H-M_alt        'P 61'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2020-04-04 deposited with the CCDC.	2020-07-03 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            6
_cell_length_a                   9.3905(2)
_cell_length_b                   9.3905(2)
_cell_length_c                   40.1802(17)
_cell_measurement_reflns_used    29713
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      26.18
_cell_measurement_theta_min      2.50
_cell_volume                     3068.46(16)
_computing_cell_refinement       'STOE X-AREA'
_computing_data_collection       'STOE X-AREA'
_computing_data_reduction        'STOE X-RED'
_computing_molecular_graphics    'ORTEP32 (Farugia)'
_computing_publication_material  'Ciftab (Sheldrick)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS-2013/1 (Sheldrick, 2013)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Stoe IPDS-2T'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0347
_diffrn_reflns_av_unetI/netI     0.0249
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       49
_diffrn_reflns_limit_l_min       -44
_diffrn_reflns_number            10175
_diffrn_reflns_point_group_measured_fraction_full 0.954
_diffrn_reflns_point_group_measured_fraction_max 0.951
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.995
_diffrn_reflns_theta_min         2.702
_exptl_absorpt_coefficient_mu    0.277
_exptl_absorpt_correction_T_max  0.9643
_exptl_absorpt_correction_T_min  0.8731
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   XShape
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.272
_exptl_crystal_description       block
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.250
_refine_diff_density_max         0.235
_refine_diff_density_min         -0.201
_refine_diff_density_rms         0.033
_refine_ls_abs_structure_details
;
 Flack x determined using 1573 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.06(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         3833
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0362
_refine_ls_R_factor_gt           0.0325
_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^)+(0.0260P)^2^+1.2307P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0761
_refine_ls_wR_factor_ref         0.0806
_reflns_Friedel_coverage         0.884
_reflns_Friedel_fraction_full    0.912
_reflns_Friedel_fraction_max     0.907
_reflns_number_gt                3630
_reflns_number_total             3833
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0dt01538e2.cif
_cod_data_source_block           RGP258B01
_cod_depositor_comments
'Adding full bibliography for 7704746--7704751.cif.'
_cod_original_cell_volume        3068.46(18)
_cod_database_code               7704746
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.874
_shelx_estimated_absorpt_t_max   0.934
_shelx_res_checksum              42261