Pyridine-N-oxide Analogues of DOTA and Their Gadolinium(III) Complexes Endowed with a Fast Water Exchange on the Square-Antiprismatic Isomer
Miloslav Polášek; Miroslava Šedinová; Jan Kotek; Luce Vander Elst; Robert N. Muller; Petr Hermann; Ivan Lukeš; Inorganic Chemistry 48 (2009) 455–465; doi:10.1021/ic801596v

data_4301204
_publ_section_title
;
Pyridine-N-oxide Analogues of DOTA and Their Gadolinium(III) Complexes
Endowed with a Fast Water Exchange on the Square-Antiprismatic Isomer
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              455
_journal_page_last               465
_journal_paper_doi               10.1021/ic801596v
_journal_volume                  48
_journal_year                    2009
_chemical_compound_source        'synthesized by the authors'
_chemical_formula_moiety         'C40 H68 N10 Na O16, 3(Br), 20.5(H2 O)'
_chemical_formula_sum            'C40 H109 Br3 N10 Na O36.5'
_chemical_formula_weight         1577.10
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 129.9966(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   19.5706(4)
_cell_length_b                   16.6197(4)
_cell_length_c                   12.7137(3)
_cell_measurement_reflns_used    2538
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      26.02
_cell_measurement_theta_min      2.91
_cell_volume                     3167.92(13)
_computing_cell_refinement       'COLLECT and DENZO'
_computing_data_collection
'COLLECT (Hooft, 1998) and DENZO (Otwinowski & Minor, 1997)'
_computing_data_reduction        'COLLECT and DENZO'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Nonius KappaCCD area detector'
_diffrn_measurement_method       '\f and \w scans to fill the Ewald sphere'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0290
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7199
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.02
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.022
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.653
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1654
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.670
_refine_diff_density_min         -0.535
_refine_diff_density_rms         0.090
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.075(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         7199
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0547
_refine_ls_R_factor_gt           0.0489
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0907P)^2^+5.0615P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1357
_refine_ls_wR_factor_ref         0.1398
_reflns_number_gt                6505
_reflns_number_total             7199
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801596v_si_002_3.cif
_cod_data_source_block           l4x8-sq
_cod_original_cell_volume        3167.92(12)
_cod_original_sg_symbol_H-M      'C 2'
_cod_original_formula_sum        'C20 H54.50 Br1.50 N5 Na0.50 O18.25'
_cod_database_code               4301204