Spin-crossover in [Fe(3-bpp)(2)][BF(4)](2) in different solvents - A dramatic stabilisation of the low-spin state in water.
Barrett, Simon A.; Kilner, Colin A.; Halcrow, Malcolm A.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 12021–12024; doi:10.1039/c1dt10620a

data_7017158
_publ_section_title
;
 Spin-crossover in [Fe(3-bpp)(2)][BF(4)](2) in different solvents - A
 dramatic stabilisation of the low-spin state in water.
;
_journal_issue                   45
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12021
_journal_page_last               12024
_journal_paper_doi               10.1039/c1dt10620a
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C22 H18 Fe N10, 2[B F4], 2[C H3 N O2]'
_chemical_formula_sum            'C24 H24 B2 F8 Fe N12 O4'
_chemical_formula_weight         774.02
_chemical_name_systematic
;
Bis[2,6-di(pyrazol-3-yl)pyridine]iron(II) ditetrafluoroborate
bis-nitromethane solvate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 93.26(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.721(2)
_cell_length_b                   22.987(5)
_cell_length_c                   12.442(3)
_cell_measurement_reflns_used    29057
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.44
_cell_measurement_theta_min      1.95
_cell_volume                     3346.8(12)
_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    'XSEED (Barbour, 2001)'
_computing_publication_material  'local program'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean '120 microns'
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_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  0.0506
_diffrn_reflns_av_sigmaI/netI    0.0295
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            29057
_diffrn_reflns_theta_full        28.44
_diffrn_reflns_theta_max         28.44
_diffrn_reflns_theta_min         1.95
_exptl_absorpt_coefficient_mu    0.546
_exptl_absorpt_correction_T_max  0.731
_exptl_absorpt_correction_T_min  0.689
_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            orange
_exptl_crystal_density_diffrn    1.536
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rectangular prism'
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.597
_refine_diff_density_min         -0.673
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     256
_refine_ls_number_reflns         4108
_refine_ls_number_restraints     20
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0468
_refine_ls_R_factor_gt           0.0401
_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^)+(0.0524P)^2^+4.7045P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1050
_refine_ls_wR_factor_ref         0.1108
_reflns_number_gt                3610
_reflns_number_total             4108
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10620a.txt
_cod_data_source_block           mh362
_cod_original_cell_volume        3346.7(12)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7017158