The slow magnetic relaxation observed in a mixed carboxylate/hydroxide-bridged compound [Co2Na(4-cpa)2(mu3-OH)(H2O)] featuring spin frustrated magnetic delta-chains
Xiao-Ning Cheng; Wei-Xiong Zhang; Yan-Zhen Zheng; Xiao-Ming Chen; Chemical Communications  (2006) –; doi:10.1039/b606765d

data_7101361
_publ_section_title
;
The slow magnetic relaxation observed in a mixed
carboxylate/hydroxide-bridged compound
[Co2Na(4-cpa)2(mu3-OH)(H2O)] featuring spin
frustrated magnetic delta-chains
;
_journal_issue                   34
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/b606765d
_journal_year                    2006
_chemical_formula_sum            'C18 H15 Co2 Na O12'
_chemical_formula_weight         564.15
_chemical_name_systematic
;
?
;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.6730(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5377(6)
_cell_length_b                   10.0981(7)
_cell_length_c                   22.0819(15)
_cell_measurement_temperature    293(2)
_cell_volume                     1876.7(2)
_computing_cell_refinement       SAINT
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       '/w scan'
_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  0.0247
_diffrn_reflns_av_sigmaI/netI    0.0234
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            14736
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.22
_exptl_absorpt_coefficient_mu    1.863
_exptl_absorpt_correction_T_max  0.8806
_exptl_absorpt_correction_T_min  0.7303
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    1.997
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1136
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.717
_refine_diff_density_min         -0.386
_refine_diff_density_rms         0.092
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         4015
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0355
_refine_ls_R_factor_gt           0.0317
_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^)+(0.0434P)^2^+1.2448P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0785
_refine_ls_wR_factor_ref         0.0810
_reflns_number_gt                3635
_reflns_number_total             4015
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b606765d.txt
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7101361