Synthesis and spectroscopic characterization of a new family of Ni(4) spin clusters.
Sieber, Andreas; Boskovic, Colette; Bircher, Roland; Waldmann, Oliver; Ochsenbein, Stefan T.; Chaboussant, Grégory; Güdel, Hans U; Kirchner, Nadeschda; van Slageren, Joris; Wernsdorfer, Wolfgang; Neels, Antonia; Stoeckli-Evans, Helen; Janssen, Stefan; Juranyi, Fanni; Mutka, Hannu; Inorganic chemistry 44 (2005) 4315–4325; doi:10.1021/ic050134j

data_4340433
_publ_section_title
;
 Synthesis and spectroscopic characterization of a new family of Ni(4)
 spin clusters.
;
_journal_issue                   12
_journal_name_full               'Inorganic chemistry'
_journal_page_first              4315
_journal_page_last               4325
_journal_paper_doi               10.1021/ic050134j
_journal_volume                  44
_journal_year                    2005
_chemical_formula_sum            'C45 H62 Cl2 N4 Ni4 O12'
_chemical_formula_weight         1156.73
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                86.900(10)
_cell_angle_beta                 86.347(10)
_cell_angle_gamma                70.041(9)
_cell_formula_units_Z            4
_cell_length_a                   14.5644(12)
_cell_length_b                   14.5954(11)
_cell_length_c                   24.772(2)
_cell_measurement_reflns_used    8000
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      25.08
_cell_measurement_theta_min      2.15
_cell_volume                     4936.6(7)
_computing_cell_refinement       'CELL, Stoe & Cie Company, Germany'
_computing_data_collection       'EXPOSE, Stoe & Cie Company, Germany'
_computing_data_reduction        'INTEGRATE, Stoe & Cie Company, Germany'
_computing_molecular_graphics    'PLATON99 (Spek, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 0.81\%A
_diffrn_measured_fraction_theta_full 0.927
_diffrn_measured_fraction_theta_max 0.927
_diffrn_measurement_device_type  'IPDS, Stoe & Cie Company, Germany'
_diffrn_measurement_method       'phi oscillation'
_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  0.0340
_diffrn_reflns_av_sigmaI/netI    0.0401
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            39207
_diffrn_reflns_theta_full        25.98
_diffrn_reflns_theta_max         25.98
_diffrn_reflns_theta_min         1.95
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.674
_exptl_absorpt_correction_T_max  0.697
_exptl_absorpt_correction_T_min  0.236
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'PLATON99 (Spek, 1990)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.556
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2408
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.339
_refine_diff_density_min         -0.644
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1287
_refine_ls_number_reflns         17944
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0544
_refine_ls_R_factor_gt           0.0415
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0563P)^2^+3.8362P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1035
_refine_ls_wR_factor_ref         0.1079
_reflns_number_gt                14205
_reflns_number_total             17944
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ic050134jsi20050127_110149.cif
_cod_data_source_block           compound_2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' 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_cell_volume        4936.7(7)
_cod_database_code               4340433