Structural, thermal and photomagnetic properties of spin crossover [Fe(bpp)2]2+ salts bearing [Cr(L)(ox)2]− anions
Clemente-León, Miguel; Coronado, Eugenio; Giménez-López, M. Carmen; Romero, Francisco M.; Asthana, Saket; Desplanches, Cédric; Létard, Jean-François; Dalton Transactions  (2009) 8087–8095; doi:10.1039/b902825k

data_7030502
_publ_section_title
;
 Structural, thermal and photomagnetic properties of spin crossover
 [Fe(bpp)2]2+ salts bearing [Cr(L)(ox)2]&#x2212; anions
;
_journal_coden_ASTM              DTARAF
_journal_issue                   38
_journal_name_full               'Dalton Transactions'
_journal_page_first              8087
_journal_page_last               8095
_journal_paper_doi               10.1039/b902825k
_journal_year                    2009
_chemical_formula_sum            'C41 H43 Cl Cr Fe N12 O17.5'
_chemical_formula_weight         1127.17
_space_group_IT_number           14
_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                 115.1510(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.6664(2)
_cell_length_b                   21.6730(3)
_cell_length_c                   17.1849(2)
_cell_measurement_temperature    180(2)
_cell_volume                     4944.58(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0292
_diffrn_reflns_av_sigmaI/netI    0.0438
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            12157
_diffrn_reflns_theta_full        23.25
_diffrn_reflns_theta_max         23.25
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    0.651
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.514
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2320
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.311
_refine_diff_density_min         -1.102
_refine_diff_density_rms         0.246
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.125
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     703
_refine_ls_number_reflns         7072
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.125
_refine_ls_R_factor_all          0.0839
_refine_ls_R_factor_gt           0.0560
_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^)+(0.1588P)^2^+0.7748P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1728
_refine_ls_wR_factor_ref         0.2197
_reflns_number_gt                5564
_reflns_number_total             7072
_reflns_threshold_expression     >2\s(I)
_cod_duplicate_entry             7002328
_cod_data_source_file            b902825k.txt
_cod_data_source_block           mcg371a
_cod_original_cell_volume        4944.58(11)
_cod_original_sg_symbol_H-M      P21/c
_cod_original_formula_sum        'C41 H43 Cl Cr Fe N12 O17.50'
_cod_database_code               7030502