Transport of metal salts by zwitterionic ligands; simple but highly efficient salicylaldoxime extractants.
Forgan, Ross S; Davidson, James E; Galbraith, Stuart G; Henderson, David K; Parsons, Simon; Tasker, Peter A; White, Fraser J; Chemical communications (Cambridge, England)  (2008) 4049–4051; doi:10.1039/b808696f

data_7103327
_publ_section_title
;
 Transport of metal salts by zwitterionic ligands; simple but highly
 efficient salicylaldoxime extractants.
;
_journal_issue                   34
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              4049
_journal_page_last               4051
_journal_paper_doi               10.1039/b808696f
_journal_year                    2008
_chemical_formula_moiety         'C34 H52 Cl4 N4 O4 Zn2, 4(C H Cl3)'
_chemical_formula_sum            'C38 H56 Cl16 N4 O4 Zn2'
_chemical_formula_weight         1330.81
_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     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.166(2)
_cell_angle_beta                 107.680(2)
_cell_angle_gamma                117.492(2)
_cell_formula_units_Z            2
_cell_length_a                   14.1922(16)
_cell_length_b                   15.2573(17)
_cell_length_c                   15.8100(17)
_cell_measurement_reflns_used    6609
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.74
_cell_measurement_theta_min      2.54
_cell_volume                     2851.6(5)
_computing_cell_refinement       Saint
_computing_data_collection       Smart32
_computing_data_reduction        Saint
_computing_molecular_graphics    XP
_computing_publication_material  PLATON
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'DIRDIF 99'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.890
_diffrn_measurement_device_type  'Bruker Smart Apex CCD'
_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  0.0195
_diffrn_reflns_av_sigmaI/netI    0.0319
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            25571
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.82
_diffrn_reflns_theta_min         1.37
_exptl_absorpt_coefficient_mu    1.631
_exptl_absorpt_correction_T_max  0.680
_exptl_absorpt_correction_T_min  0.564
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   Sadabs
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.550
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1352
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.24
_refine_diff_density_max         1.175
_refine_diff_density_min         -0.901
_refine_diff_density_rms         0.084
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     627
_refine_ls_number_reflns         13277
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0523
_refine_ls_R_factor_gt           0.0450
_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^)+(0.0559P)^2^+3.7785P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1119
_refine_ls_wR_factor_ref         0.1165
_reflns_number_gt                11425
_reflns_number_total             13277
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b808696f.txt
_cod_data_source_block           dhzntb
_cod_database_code               7103327