Europium(II) Compounds: Simple Synthesis of a Molecular Complex in Water and Coordination Polymers with 2,2-Bipyrimidine Mediated Ferromagnetic Interactions
Gaël Zucchi; Pierre Thuéry; Eric Rivière; Michel Ephritikhine; Chem.Commun. 46 (2010) 9143–9145; doi:10.1039/c0cc02539a

data_7105716
_publ_section_title
;
 Europium(II) Compounds: Simple Synthesis of a Molecular Complex in Water
 and Coordination Polymers with 2,2-Bipyrimidine Mediated Ferromagnetic
 Interactions
;
_journal_name_full               Chem.Commun.
_journal_page_first              9143
_journal_page_last               9145
_journal_paper_doi               10.1039/c0cc02539a
_journal_volume                  46
_journal_year                    2010
_chemical_formula_sum            'C20 H21 Eu I2 N10 O3'
_chemical_formula_weight         855.23
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 123.588(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   31.7279(17)
_cell_length_b                   10.1284(6)
_cell_length_c                   20.2074(14)
_cell_measurement_reflns_used    80299
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      3.01
_cell_volume                     5409.5(6)
_computing_cell_refinement       'HKL2000 (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1998)'
_computing_data_reduction        'HKL2000 (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1999)'
_computing_publication_material
'SHELXTL (Sheldrick, 1999); PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type
'Nonius Kappa-CCD area-detector diffractometer'
_diffrn_measurement_method
'two \f and three \w scans with 2\% steps (310 frames)'
_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  0.0359
_diffrn_reflns_av_sigmaI/netI    0.0467
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            80299
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         3.01
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.643
_exptl_absorpt_correction_T_max  0.690
_exptl_absorpt_correction_T_min  0.344
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            'dark brown'
_exptl_crystal_density_diffrn    2.100
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             3232
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         2.722
_refine_diff_density_min         -1.509
_refine_diff_density_rms         0.220
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     355
_refine_ls_number_reflns         5142
_refine_ls_number_restraints     72
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0588
_refine_ls_R_factor_gt           0.0431
_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^)+(0.0668P)^2^+51.0210P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1109
_refine_ls_wR_factor_ref         0.1186
_reflns_number_gt                4099
_reflns_number_total             5142
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CC02539A.TXT
_cod_data_source_block           3
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7105716