Octanuclear [Ni(II)4Ln(III)4] complexes. Synthesis, crystal structures and magnetocaloric properties.
Pasatoiu, Traian D.; Ghirri, Alberto; Madalan, Augustin M.; Affronte, Marco; Andruh, Marius; Dalton transactions (Cambridge, England : 2003) 43 (2014) 9136–9142; doi:10.1039/c4dt00515e

data_7030834
_publ_section_title
;
 Octanuclear [Ni(II)4Ln(III)4] complexes. Synthesis, crystal structures
 and magnetocaloric properties.
;
_journal_issue                   24
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9136
_journal_page_last               9142
_journal_paper_doi               10.1039/c4dt00515e
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C78 H130 N32 Ni4 O47 Sm4'
_chemical_formula_weight         3104.38
_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                 91.216(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.1410(4)
_cell_length_b                   23.4741(8)
_cell_length_c                   19.0068(5)
_cell_measurement_reflns_used    33187
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.34
_cell_measurement_theta_min      2.31
_cell_volume                     5861.8(3)
_computing_cell_refinement       X-Area
_computing_data_collection       X-Area
_computing_data_reduction        X-Area
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'STOE-IPDS II'
_diffrn_measurement_method       'omega scans'
_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  0.0943
_diffrn_reflns_av_unetI/netI     0.0583
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            52745
_diffrn_reflns_theta_full        27.34
_diffrn_reflns_theta_max         27.34
_diffrn_reflns_theta_min         2.31
_exptl_absorpt_coefficient_mu    2.696
_exptl_absorpt_correction_T_max  0.6197
_exptl_absorpt_correction_T_min  0.3332
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.759
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3116
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.15
_refine_diff_density_max         2.448
_refine_diff_density_min         -1.883
_refine_diff_density_rms         0.166
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     766
_refine_ls_number_reflns         13082
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0768
_refine_ls_R_factor_gt           0.0600
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0868P)^2^+9.5137P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1490
_refine_ls_wR_factor_ref         0.1589
_reflns_number_gt                10419
_reflns_number_total             13082
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt00515e2.cif
_cod_data_source_block           compound1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7030834--7030835.cif.

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7030834