A temperature-dependent order-disorder and crystallographic phase transition in a 0D Fe(ii) spin crossover compound and its non-spin crossover Co(ii) isomorph.
Ross, Tamsyn M.; Moubaraki, Boujemaa; Wallwork, Kia S.; Batten, Stuart R.; Murray, Keith S.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 10147–10155; doi:10.1039/c1dt10961h

data_7016899
_publ_section_title
;
 A temperature-dependent order-disorder and crystallographic phase
 transition in a 0D Fe(ii) spin crossover compound and its non-spin
 crossover Co(ii) isomorph.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10147
_journal_page_last               10155
_journal_paper_doi               10.1039/c1dt10961h
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C44 H56 Fe N18 Se2'
_chemical_formula_sum            'C44 H56 Fe N18 Se2'
_chemical_formula_weight         1050.84
_chemical_name_common            '[Fe(II)(NCSe)2(DDE)2]'
_chemical_name_systematic
;
[Fe(II)(NCSe)2(DDE)2]
;
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yc'
_symmetry_space_group_name_H-M   'P 1 2/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                 92.23(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.854(4)
_cell_length_b                   13.895(3)
_cell_length_c                   17.276(4)
_cell_measurement_reflns_used    46562
_cell_measurement_temperature    160(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      2.10
_cell_volume                     5002.2(19)
_computing_cell_refinement       'Bruker SMART (Bruker)'
_computing_data_collection       'Bruker SMART (Bruker)'
_computing_data_reduction        'Bruker SAINT (Bruker)'
_computing_molecular_graphics    'X-Seed (Barbour, 1999)'
_computing_publication_material  'CIFTAB (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      160(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker X8 Apex II CCD'
_diffrn_measurement_method       'phi and omega 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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.1100
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            46562
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    1.808
_exptl_absorpt_correction_T_max  0.9151
_exptl_absorpt_correction_T_min  0.8399
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   TWINABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.395
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2160
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.813
_refine_diff_density_min         -0.670
_refine_diff_density_rms         0.197
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.868
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     596
_refine_ls_number_reflns         46562
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      0.871
_refine_ls_R_factor_all          0.0786
_refine_ls_R_factor_gt           0.0432
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0954
_refine_ls_wR_factor_ref         0.1087
_reflns_number_gt                29166
_reflns_number_total             46562
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10961h.txt
_cod_data_source_block           1b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2/c
_cod_database_code               7016899