Synthesis of Novel Polyazacryptands for Recognition of Tetrahedral Oxoanions and Their X-ray Structures
Debasish Jana; Ganesan Mani; Carola Schulzke; Inorganic Chemistry 52 (2013) 6427–6439; doi:10.1021/ic400319b

data_4335038
_publ_contact_author_address
;Department of Chemistry
Indian Institute of Technology-Kharagpur
Kharagpur, India 721 302
;
_publ_contact_author_email       gmani@chem.iitkgp.ernet.in
_publ_contact_author_fax         91-3222-282252
_publ_contact_author_name        'Mani, Ganesan.'
_publ_contact_author_phone       91-3222-282320
_publ_section_title
;
 Synthesis of Novel Polyazacryptands for Recognition of Tetrahedral
 Oxoanions and Their X-ray Structures
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6427
_journal_page_last               6439
_journal_paper_doi               10.1021/ic400319b
_journal_volume                  52
_journal_year                    2013
_chemical_formula_sum            'C39 H88 As N11 O21'
_chemical_formula_weight         1122.12
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                66.874(3)
_cell_angle_beta                 67.727(3)
_cell_angle_gamma                67.019(3)
_cell_formula_units_Z            2
_cell_length_a                   13.0215(12)
_cell_length_b                   16.1623(15)
_cell_length_c                   16.6439(15)
_cell_measurement_reflns_used    36590
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.26
_cell_measurement_theta_min      1.38
_cell_volume                     2858.4(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Bruker CCD APEX 2'
_diffrn_measurement_method       hemisphere
_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  0.0723
_diffrn_reflns_av_sigmaI/netI    0.1128
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            36590
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.26
_diffrn_reflns_theta_min         1.38
_exptl_absorpt_coefficient_mu    0.673
_exptl_absorpt_correction_T_max  0.824
_exptl_absorpt_correction_T_min  0.781
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.389
_exptl_crystal_size_mid          0.305
_exptl_crystal_size_min          0.286
_platon_squeeze_details
;
The SQUEEZE/PLATON procedure yielded total void volume and electron 
count of 784\%A^3^ and 285 e, respectively. For Z = 2 this gives
143 electrons per formula. This number equals roughly 14 molecules of solvent 
water. 
The fraction of solvent has been treated as a diffuse contribution 
to the overall scattering without specific atom positions.
;
_refine_diff_density_max         0.647
_refine_diff_density_min         -0.391
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.906
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     593
_refine_ls_number_reflns         11296
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      0.907
_refine_ls_R_factor_all          0.1210
_refine_ls_R_factor_gt           0.0697
_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^)+(0.1048P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1778
_refine_ls_wR_factor_ref         0.1936
_reflns_number_gt                5530
_reflns_number_total             11296
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ic400319b_si_002_6.cif
_cod_data_source_block           7(aso4)
_cod_database_code               4335038