Anion doping as a probe of cooperativity in the molecular spin-crossover compound [FeL2][BF4]2 (L = 2,6-di{pyrazol-1-yl}pyridine).
Carbonera, Chiara; Kilner, Colin A.; Létard, Jean-François; Halcrow, Malcolm A.; Dalton transactions (Cambridge, England : 2003)  (2007) 1284–1292; doi:10.1039/b618480d

data_7005248
_publ_section_title
;
 Anion doping as a probe of cooperativity in the molecular
 spin-crossover compound [FeL2][BF4]2 (L =
 2,6-di{pyrazol-1-yl}pyridine).
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1284
_journal_page_last               1292
_journal_paper_doi               10.1039/b618480d
_journal_year                    2007
_chemical_formula_moiety         'C22 H18 Fe N10, 1.56[B F4], 0.44[Cl O4]'
_chemical_formula_sum            'C22 H18 B1.56 Cl0.44 F6.24 Fe N10 O1.76'
_chemical_formula_weight         657.50
_chemical_name_systematic
;
Bis[2,6-di(pyrazol-1-yl)pyridine]iron(II) 1.56:0.44 tetrafluoroborate:
perchlorate salt
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 95.582(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.5441(6)
_cell_length_b                   8.5611(6)
_cell_length_c                   19.2084(13)
_cell_measurement_reflns_used    42289
_cell_measurement_temperature    300(2)
_cell_measurement_theta_max      30.05
_cell_measurement_theta_min      2.40
_cell_volume                     1398.37(17)
_computing_cell_refinement       'APEX 2 software, Bruker Nonius 2004'
_computing_data_collection       'APEX 2 software, Bruker Nonius 2004'
_computing_data_reduction        'SAINT, Bruker Nonius 2004'
_computing_molecular_graphics    'ORTEX (McArdle, 1995)'
_computing_publication_material  'local program'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      300(2)
_diffrn_detector_area_resol_mean '120 microns'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker X8 Apex diffractometer'
_diffrn_measurement_method       'Rotation images'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0490
_diffrn_reflns_av_sigmaI/netI    0.0474
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_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            42289
_diffrn_reflns_theta_full        30.05
_diffrn_reflns_theta_max         30.05
_diffrn_reflns_theta_min         2.40
_exptl_absorpt_coefficient_mu    0.663
_exptl_absorpt_correction_T_max  0.764
_exptl_absorpt_correction_T_min  0.642
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Sheldrick, G. M. (2002). SADABS v. 2.03. University of
G/ottingen, Germany.
;
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.562
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'Rectangular prism'
_exptl_crystal_F_000             663
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.425
_refine_diff_density_min         -0.372
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.047(17)
_refine_ls_extinction_coef       0.0050(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     455
_refine_ls_number_reflns         7960
_refine_ls_number_restraints     61
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0832
_refine_ls_R_factor_gt           0.0456
_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^)+(0.0668P)^2^+0.2241P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1159
_refine_ls_wR_factor_ref         0.1366
_reflns_number_gt                5169
_reflns_number_total             7960
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b618480d.txt
_cod_data_source_block           c:\datasets\leeds\mh140a~1\mh140a~1\mh140art
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7005248