Thermal and light induced polymorphism in iron(II) spin crossover compounds.
Thompson, Amber L; Goeta, Andres E; Real, Jose A; Galet, Ana; Carmen Munoz, M; Chemical communications (Cambridge, England)  (2004) 1390–1391; doi:10.1039/b403179b

data_7102691
_publ_section_title
;
 Thermal and light induced polymorphism in iron(II) spin crossover
 compounds.
;
_journal_issue                   12
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1390
_journal_page_last               1391
_journal_paper_doi               10.1039/b403179b
_journal_year                    2004
_chemical_formula_moiety         'C22 H24 B2 Fe N10'
_chemical_formula_sum            'C22 H24 B2 Fe N10'
_chemical_formula_weight         505.98
_chemical_melting_point          ?
_chemical_name_common
'2,2'-Bipyridine-bis(di(hydro)bis(1-pyrazolyl)borate iron(ii)'
_chemical_name_systematic
;
2,2'-Bipyridine-bis[di(hydro)bis(1-pyrazolyl)borate
iron(II)
;
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 114.986(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.0350(9)
_cell_length_b                   14.9377(9)
_cell_length_c                   11.0470(7)
_cell_measurement_reflns_used    1820
_cell_measurement_temperature    30(2)
_cell_measurement_theta_max      54.301
_cell_measurement_theta_min      6.441
_cell_volume                     2398.4(2)
_computing_cell_refinement       'SMART-NT V6.1 (Bruker, 2000)'
_computing_data_collection       'SMART-NT V6.1 (Bruker, 2000)'
_computing_data_reduction        'SMART-NT V6.1 (Bruker, 2000)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      30(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.899
_diffrn_measured_fraction_theta_max 0.899
_diffrn_measurement_device_type  'Bruker SMART CCD 1K area detector'
_diffrn_measurement_method       \w-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  0.0629
_diffrn_reflns_av_sigmaI/netI    0.1026
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6071
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         3.22
_exptl_absorpt_coefficient_mu    0.662
_exptl_absorpt_correction_T_max  0.9551
_exptl_absorpt_correction_T_min  0.8790
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   'SADABS (G.M.Sheldrick, 1998)'
_exptl_crystal_colour            clear_intense_red
_exptl_crystal_density_diffrn    1.401
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       block
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.734
_refine_diff_density_min         -0.484
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     207
_refine_ls_number_reflns         2700
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.1089
_refine_ls_R_factor_gt           0.0630
_refine_ls_shift/su_max          0.225
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0407P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0969
_refine_ls_wR_factor_ref         0.1073
_reflns_number_gt                1884
_reflns_number_total             2700
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b403179b.txt
_cod_data_source_block           bipy4
_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 

The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7102691