Oxidative dehydrogenation of a new tetra-amine N4-donor macrocycle tunes the nickel(ii) spin state from high spin to low spin.
Wilson, Rajni K.; Brooker, Sally; Dalton transactions (Cambridge, England : 2003) 42 (2013) 12075–12078; doi:10.1039/c3dt51776d

data_7021818
_publ_section_title
;
 Oxidative dehydrogenation of a new tetra-amine N4-donor macrocycle tunes
 the nickel(ii) spin state from high spin to low spin.
;
_journal_issue                   34
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12075
_journal_page_last               12078
_journal_paper_doi               10.1039/c3dt51776d
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C20.45 H25.2 Cl0.6 N6 Ni O0.3 S2'
_chemical_formula_weight         503.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 106.797(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.7811(9)
_cell_length_b                   20.5066(14)
_cell_length_c                   9.1197(5)
_cell_measurement_reflns_used    4866
_cell_measurement_temperature    91(2)
_cell_measurement_theta_max      25.948
_cell_measurement_theta_min      2.516
_cell_volume                     2467.3(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      91(2)
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'Bruker APEX II area detector'
_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  0.0435
_diffrn_reflns_av_sigmaI/netI    0.0459
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            18695
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.54
_exptl_absorpt_coefficient_mu    1.041
_exptl_absorpt_correction_T_max  0.8766
_exptl_absorpt_correction_T_min  0.7736
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE (Bruker AXS Inc.)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1050
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.207
_refine_diff_density_min         -0.531
_refine_diff_density_rms         0.107
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     302
_refine_ls_number_reflns         4882
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0651
_refine_ls_R_factor_gt           0.0494
_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^)+(0.0870P)^2^+3.0793P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1463
_refine_ls_wR_factor_ref         0.1579
_reflns_number_gt                3849
_reflns_number_total             4882
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51776d.txt
_cod_data_source_block           rs472
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_original_formula_sum        'C20.45 H25.20 Cl0.60 N6 Ni O0.30 S2'
_cod_database_code               7021818