Base-Stabilized Amidodiarsenes: Synthesis, Structure, and Theoretical Studies
Shaun P. Green; Cameron Jones; Guoxia Jin; Andreas Stasch; Inorganic Chemistry 46 (2007) 8–10; doi:10.1021/ic062163f

data_4307678
_publ_section_title
;
Base-Stabilized Amidodiarsenes: Synthesis, Structure, and Theoretical
Studies
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              8
_journal_page_last               10
_journal_paper_doi               10.1021/ic062163f
_journal_volume                  46
_journal_year                    2007
_chemical_formula_sum            'C102 H144 As2 N6'
_chemical_formula_weight         1604.07
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   28.310(6)
_cell_length_b                   23.938(5)
_cell_length_c                   13.435(3)
_cell_measurement_temperature    150(2)
_cell_volume                     9105(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_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  0.0539
_diffrn_reflns_av_sigmaI/netI    0.0446
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            89263
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.93
_exptl_absorpt_coefficient_mu    0.783
_exptl_absorpt_correction_T_max  0.871
_exptl_absorpt_correction_T_min  0.797
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav (Blessing, 1995)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3456
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.355
_refine_diff_density_min         -0.435
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.121(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1012
_refine_ls_number_reflns         19639
_refine_ls_number_restraints     43
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0552
_refine_ls_R_factor_gt           0.0412
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0380P)^2^+6.2505P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0896
_refine_ls_wR_factor_ref         0.0958
_reflns_number_gt                16687
_reflns_number_total             19639
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic062163fsi20061114_083131.cif
_cod_data_source_block           compound4a
_cod_database_code               4307678