Structure and magnetism of a new pyrazolate bridged iron(II) spin crossover complex displaying a single HS-HS to LS-LS transition.
Leita, Ben A; Moubaraki, Boujemaa; Murray, Keith S; Smith, Jonathan P; Cashion, John D; Chemical communications (Cambridge, England)  (2004) 156–157; doi:10.1039/b311818e

data_7102421
_publ_section_title
;
 Structure and magnetism of a new pyrazolate bridged iron(II) spin
 crossover complex displaying a single HS-HS to LS-LS transition.
;
_journal_issue                   2
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              156
_journal_page_last               157
_journal_paper_doi               10.1039/b311818e
_journal_year                    2004
_chemical_formula_sum            'C34 H26 Fe2 N14 O2 Se2'
_chemical_formula_weight         932.31
_chemical_name_systematic
;
?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.7857(2)
_cell_length_b                   17.2422(4)
_cell_length_c                   20.1713(5)
_cell_measurement_temperature    123(2)
_cell_volume                     3751.24(15)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1019
_diffrn_reflns_av_sigmaI/netI    0.0729
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            38404
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    2.767
_exptl_absorpt_correction_T_max  0.8741
_exptl_absorpt_correction_T_min  0.5749
_exptl_absorpt_correction_type   'not measured'
_exptl_crystal_colour            Yellow-orange
_exptl_crystal_density_diffrn    1.651
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'Irregular plates'
_exptl_crystal_F_000             1856
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.05
_refine_diff_density_max         2.870
_refine_diff_density_min         -1.756
_refine_diff_density_rms         0.475
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.160
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         4635
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.160
_refine_ls_R_factor_all          0.1262
_refine_ls_R_factor_gt           0.0687
_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^)+(0.1273P)^2^+7.8607P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1887
_refine_ls_wR_factor_ref         0.2367
_reflns_number_gt                3110
_reflns_number_total             4635
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b311818e.txt
_cod_data_source_block           pbca_123K_Original
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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      Pbca
_cod_database_code               7102421