In air a spin crossover active iron(ii) complex of amine/NCBH3(-) ligands is converted to a low spin complex of imine/CN(-) ligands.
Zhou, Jian; Zhu, Bo-Wen; Luan, Jie; Liu, Zhan; Fang, Jing-Kun; Bao, Xin; Peng, Guo; Tucek, Jiri; Bao, Song-Song; Zheng, Li-Min; Dalton transactions (Cambridge, England : 2003) 44 (2015) 20551–20561; doi:10.1039/c5dt03464g

data_7036967
_publ_section_title
;
 In air a spin crossover active iron(ii) complex of amine/NCBH3(-) ligands
 is converted to a low spin complex of imine/CN(-) ligands.
;
_journal_issue                   47
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              20551
_journal_page_last               20561
_journal_paper_doi               10.1039/c5dt03464g
_journal_volume                  44
_journal_year                    2015
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H24 B2 Fe N6'
_chemical_formula_sum            'C16 H24 B2 Fe N6'
_chemical_formula_weight         377.88
_space_group_crystal_system      orthorhombic
_space_group_IT_number           41
_space_group_name_Hall           'A 2 -2ab'
_space_group_name_H-M_alt        'A e a 2'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2015-10-25 deposited with the CCDC.
2015-10-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   14.3553(8)
_cell_length_b                   15.2389(11)
_cell_length_c                   8.8543(7)
_cell_measurement_reflns_used    2286
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.13
_cell_measurement_theta_min      3.02
_cell_volume                     1937.0(2)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2013)'
_computing_data_reduction        APEX2
_computing_molecular_graphics
;
OLEX2 (Dolomanov et al., 2009) and DIAMOND (Brandenburg & Putz, 2005)'
;
_computing_publication_material  OLEX2
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'PHOTON100 CMOS detector'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0436
_diffrn_reflns_av_unetI/netI     0.0395
_diffrn_reflns_Laue_measured_fraction_full 0.981
_diffrn_reflns_Laue_measured_fraction_max 0.981
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            6315
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.987
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.243
_diffrn_reflns_theta_min         3.016
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.789
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.6695
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2013)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.210
_exptl_crystal_size_mid          0.170
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.181
_refine_diff_density_min         -0.178
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.04(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1510
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0420
_refine_ls_R_factor_gt           0.0294
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0290P)^2^+0.6335P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0591
_refine_ls_wR_factor_ref         0.0630
_reflns_Friedel_coverage         0.874
_reflns_Friedel_fraction_full    0.994
_reflns_Friedel_fraction_max     0.994
_reflns_number_gt                1283
_reflns_number_total             1510
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5dt03464g2.cif
_cod_data_source_block           1_150K
_cod_depositor_comments
'Adding full bibliography for 7036967--7036970.cif.'
_cod_original_sg_symbol_H-M      'A b a 2'
_cod_database_code               7036967
_shelx_estimated_absorpt_t_min   0.852
_shelx_estimated_absorpt_t_max   0.969
_shelxl_version_number           2013-4
_shelx_res_checksum              55617