As-stereogenic C2-symmetric organoarsines: synthesis and enantioselective self-assembly into a dinuclear triple-stranded helicate with copper iodide.
Adachi, Hiroki; Imoto, Hiroaki; Watase, Seiji; Matsukawa, Kimihiro; Naka, Kensuke; Dalton transactions (Cambridge, England : 2003) 44 (2015) 15372–15376; doi:10.1039/c5dt01490e

data_7035357
_publ_section_title
;
 As-stereogenic C2-symmetric organoarsines: synthesis and enantioselective
 self-assembly into a dinuclear triple-stranded helicate with copper
 iodide.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15372
_journal_page_last               15376
_journal_paper_doi               10.1039/c5dt01490e
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C18 H18 As2'
_chemical_formula_sum            'C18 H18 As2'
_chemical_formula_weight         384.18
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2015-05-13 deposited with the CCDC.
2015-06-08 downloaded from the CCDC.
;
_cell_angle_alpha                65.9677(15)
_cell_angle_beta                 63.8478(15)
_cell_angle_gamma                65.3787(17)
_cell_formula_units_Z            2
_cell_length_a                   9.3383(6)
_cell_length_b                   10.5512(6)
_cell_length_c                   10.7149(6)
_cell_measurement_reflns_used    4985
_cell_measurement_temperature    296
_cell_measurement_theta_max      27.38
_cell_measurement_theta_min      3.52
_cell_volume                     828.52(9)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'DIRDIF99-PATTY (Gould, et al., 1999)'
_diffrn_ambient_temperature      296
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0496
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            8169
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.454
_diffrn_reflns_theta_min         3.521
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.023
_exptl_absorpt_correction_T_max  0.923
_exptl_absorpt_correction_T_min  0.488
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.540
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
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_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.200
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_refine_diff_density_max         0.98
_refine_diff_density_min         -1.14
_refine_ls_extinction_coef       0.023(4)
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     182
_refine_ls_number_reflns         3735
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1169
_refine_ls_R_factor_gt           0.0596
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0963P)^2^+1.4398P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1492
_refine_ls_wR_factor_ref         0.2240
_reflns_number_gt                2004
_reflns_number_total             3735
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c5dt01490e2.cif
_cod_data_source_block           2a
_cod_depositor_comments
'Adding full bibliography for 7035355--7035359.cif.'
_cod_original_cell_volume        828.51(8)
_cod_database_code               7035357