Challenges in chelating positron emitting copper isotopes: tailored synthesis of unsymmetric chelators to form ultra stable complexes.
Silversides, Jon D.; Smith, Rachel; Archibald, Stephen J.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 6289–6297; doi:10.1039/c0dt01395a

data_7015249
_publ_section_title
;
 Challenges in chelating positron emitting copper isotopes: tailored
 synthesis of unsymmetric chelators to form ultra stable complexes.
;
_journal_issue                   23
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6289
_journal_page_last               6297
_journal_paper_doi               10.1039/c0dt01395a
_journal_volume                  40
_journal_year                    2011
_chemical_formula_sum            'C20 H36 Cl2 Cu N4 O9'
_chemical_formula_weight         610.97
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c 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                   15.571(2)
_cell_length_b                   9.7171(9)
_cell_length_c                   16.678(2)
_cell_measurement_reflns_used    11505
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      29.04
_cell_measurement_theta_min      2.44
_cell_volume                     2523.5(5)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2002)'
_computing_data_reduction        'X-RED (Stoe & Cie, 2002)'
_computing_molecular_graphics    'ORTEP III (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Stoe IPDS-II image plate'
_diffrn_measurement_method
'\w scans, 149 frames at 2\% intervals, exposure time 3 minutes'
_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  0.1636
_diffrn_reflns_av_sigmaI/netI    0.2086
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            57231
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         34.83
_diffrn_reflns_theta_min         2.44
_exptl_absorpt_coefficient_mu    1.135
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'blue green'
_exptl_crystal_density_diffrn    1.608
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1276
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.728
_refine_diff_density_min         -2.462
_refine_diff_density_rms         0.103
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.003(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.716
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         10817
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.716
_refine_ls_R_factor_all          0.1941
_refine_ls_R_factor_gt           0.0453
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0433P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0873
_refine_ls_wR_factor_ref         0.1152
_reflns_number_gt                3493
_reflns_number_total             10817
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt01395a.txt
_cod_data_source_block           sja70_06
_cod_original_sg_symbol_H-M      Pca21
_cod_database_code               7015249