Lanthanide(III) Complexes of Pyridine-N-Oxide Analogues of DOTA in Solution and in the Solid State. A New Kind of Isomerism in Complexes of DOTA-like Ligands
Miloslav Polášek; Jan Kotek; Petr Hermann; Ivana Císařová; Koen Binnemans; Ivan Lukeš; Inorganic Chemistry 48 (2009) 466–475; doi:10.1021/ic801597z

data_4301208
_publ_section_title
;
Lanthanide(III) Complexes of Pyridine-N-Oxide Analogues of DOTA in Solution
and in the Solid State. A New Kind of Isomerism in Complexes of DOTA-like
Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              466
_journal_page_last               475
_journal_paper_doi               10.1021/ic801597z
_journal_volume                  48
_journal_year                    2009
_chemical_compound_source        'synthesized by the authors'
_chemical_formula_moiety         'C20 H28 Yb N5 O7, 4(H2 O)'
_chemical_formula_sum            'C20 H36 N5 O11 Yb'
_chemical_formula_weight         695.58
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 95.5528(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.3419(2)
_cell_length_b                   7.47780(10)
_cell_length_c                   33.3682(5)
_cell_measurement_reflns_used    6019
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     2568.41(7)
_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 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0501
_diffrn_reflns_av_sigmaI/netI    0.0365
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       43
_diffrn_reflns_limit_l_min       -43
_diffrn_reflns_number            29051
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         1.23
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.708
_exptl_absorpt_correction_T_max  0.80009
_exptl_absorpt_correction_T_min  0.48947
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
Gaussian integration (Coppens, 1970)
;
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.799
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1396
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.656
_refine_diff_density_min         -1.080
_refine_diff_density_rms         0.123
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     344
_refine_ls_number_reflns         5873
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0379
_refine_ls_R_factor_gt           0.0272
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0240P)^2^+3.9985P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0588
_refine_ls_wR_factor_ref         0.0634
_reflns_number_gt                4922
_reflns_number_total             5873
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801597z_si_002_3.cif
_cod_data_source_block           ybpol
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4301208