Making Spin-Crossover Crystals by Successive Polymorphic Transformations
Rong-Jia Wei; Bao Li; Jun Tao; Rong-Bin Huang; Lan-Sun Zheng; Zhiping Zheng; Inorganic Chemistry 50 (2011) 1170–1172; doi:10.1021/ic102231j

data_4324487
_publ_contact_author_address
;
Department of Chemistry
Xiamen University
Xiamen 361005
P. R. China
;
_publ_contact_author_email       taojun@xmu.edu.cn
_publ_contact_author_name        'Prof. Jun Tao'
_publ_contact_author_phone       86-592-2188138
_publ_section_title
;
 Making Spin-Crossover Crystals by Successive Polymorphic Transformations
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1170
_journal_page_last               1172
_journal_paper_doi               10.1021/ic102231j
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C20 H18 Fe N6 S2'
_chemical_formula_weight         462.37
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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                 90.208(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.6485(6)
_cell_length_b                   20.9733(9)
_cell_length_c                   14.6019(7)
_cell_measurement_temperature    140(2)
_cell_volume                     4179.8(3)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford Gemini S Ultra'
_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  0.2448
_diffrn_reflns_av_sigmaI/netI    0.1784
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            27218
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.79
_exptl_absorpt_coefficient_mu    0.940
_exptl_absorpt_correction_T_max  0.9634
_exptl_absorpt_correction_T_min  0.9328
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.4 (release 27-04-2006 CrysAlis171 .NET)
(compiled Apr 27 2007,17:53:11)
empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.470
_exptl_crystal_description       block
_exptl_crystal_F_000             1904
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.697
_refine_diff_density_min         -0.755
_refine_diff_density_rms         0.096
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.764
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     523
_refine_ls_number_reflns         7349
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.764
_refine_ls_R_factor_all          0.1210
_refine_ls_R_factor_gt           0.0505
_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^)+(0.0122P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0629
_refine_ls_wR_factor_ref         0.0769
_reflns_number_gt                3683
_reflns_number_total             7349
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic102231j_si_002_4.cif
_cod_data_source_block           IIIat140K
_cod_database_code               4324487