Syntheses, crystal structures, and magnetic properties of [Ln(III)2(Succinate)3(H2O)2].0.5H2O [Ln = Pr, Nd, Sm, Eu, Gd, and Dy] polymeric networks: unusual ferromagnetic coupling in Gd derivative.
Manna, Subal Chandra; Zangrando, Ennio; Bencini, Alessandro; Benelli, Cristiano; Chaudhuri, Nirmalendu Ray; Inorganic chemistry 45 (2006) 9114–9122; doi:10.1021/ic060807d

data_4350405
_publ_section_title
;
 Syntheses, crystal structures, and magnetic properties of
 [Ln(III)2(Succinate)3(H2O)2].0.5H2O [Ln = Pr, Nd, Sm, Eu, Gd, and Dy]
 polymeric networks: unusual ferromagnetic coupling in Gd derivative.
;
_journal_issue                   22
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9114
_journal_page_last               9122
_journal_paper_doi               10.1021/ic060807d
_journal_volume                  45
_journal_year                    2006
_chemical_formula_moiety         '2(H2 O) 3(C4 H4 O4 2-) 2(Sm 3+) 0.50(H2 O)'
_chemical_formula_sum            'C12 H17 O14.5 Sm2'
_chemical_formula_weight         693.96
_chemical_name_systematic
;
catena-bisaquo-tris-succinate-disamarium(III) hemihydrated
;
_space_group_IT_number           15
_space_group_name_Hall           '-I 2ya'
_space_group_name_H-M_alt        'I 1 2/a 1'
_symmetry_cell_setting           mooclinic
_symmetry_space_group_name_H-M   'I 1 2/a 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                 101.15(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.919(3)
_cell_length_b                   7.842(2)
_cell_length_c                   17.457(4)
_cell_measurement_temperature    293(2)
_cell_volume                     1869.5(8)
_computing_cell_refinement       'Denzo-Scalepack (Macromol. Crystall., 1997)'
_computing_data_collection       'Nonius Xpress'
_computing_data_reduction        'Denzo-Scalepack (Macromol. Crystall., 1997)'
_computing_molecular_graphics    'Ortep3/windows (Farrugia,1997)'
_computing_publication_material  'Wingx 1.64.05 (Farrugia, 1999)'
_computing_structure_refinement  'SHELX97 (Sheldrick, 1998)'
_computing_structure_solution    'SHELX97 (Sheldrick, 1998)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'image plate dip1030'
_diffrn_measurement_method       'laser scanner'
_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  0.0434
_diffrn_reflns_av_sigmaI/netI    0.0404
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            11703
_diffrn_reflns_theta_full        30.57
_diffrn_reflns_theta_max         30.57
_diffrn_reflns_theta_min         2.86
_exptl_absorpt_coefficient_mu    6.295
_exptl_absorpt_correction_T_max  0.2419
_exptl_absorpt_correction_T_min  0.1784
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
;
Parkin S,Moezzi B & Hope H, (1995) J. Appl. Cryst. 28, 53-56
Cubic fit to sin(theta)/lambda - 24 parameters
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.466
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1316
_refine_diff_density_max         1.048
_refine_diff_density_min         -1.746
_refine_diff_density_rms         0.190
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     141
_refine_ls_number_reflns         2779
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0364
_refine_ls_R_factor_gt           0.0291
_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^)+(0.0531P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0776
_refine_ls_wR_factor_ref         0.0932
_reflns_number_gt                2275
_reflns_number_total             2779
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic060807dsi20060511_082202.cif
_cod_data_source_block           Complex_3_ind408f
_cod_original_sg_symbol_H-M      'I 2/a'
_cod_original_formula_sum        'C12 H17 O14.50 Sm2'
_cod_database_code               4350405