Spin crossover and structural phase transition in homochiral and heterochiral Fe[(pybox)<sub>2</sub>]<sup>2+</sup> complexes.
Gao, Wan-Qing; Meng, Yin-Shan; Liu, Chun-Hua; Pan, Yao; Liu, Tao; Zhu, Yuan-Yuan; Dalton transactions (Cambridge, England : 2003) 48 (2019) 6323–6327; doi:10.1039/c8dt04893b

data_7049630
_publ_section_title
;
 Spin crossover and structural phase transition in homochiral and
 heterochiral Fe[(pybox)<sub>2</sub>]<sup>2+</sup> complexes.
;
_journal_issue                   19
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6323
_journal_page_last               6327
_journal_paper_doi               10.1039/c8dt04893b
_journal_volume                  48
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_compound_source        none
_chemical_formula_moiety         'C46 H38 Fe N6 O4, C H3 N O2, 2(C24 H20 B)'
_chemical_formula_sum            'C95 H81 B2 Fe N7 O6'
_chemical_formula_weight         1494.13
_chemical_name_common            S-2-MeNO2-153K
_chemical_name_systematic        S-2-MeNO2-153K
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-03-08
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-03-14 deposited with the CCDC.    2019-04-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.727(3)
_cell_length_b                   12.812(3)
_cell_length_c                   47.027(9)
_cell_measurement_reflns_used    20573
_cell_measurement_temperature    153.0(2)
_cell_measurement_theta_max      27.4778
_cell_measurement_theta_min      1.6474
_cell_volume                     7668(3)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      153.0(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'MM007HF + CCD (Saturn724+)'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0650
_diffrn_reflns_av_unetI/netI     0.1109
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.978
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       59
_diffrn_reflns_limit_l_min       -60
_diffrn_reflns_number            30700
_diffrn_reflns_point_group_measured_fraction_full 0.951
_diffrn_reflns_point_group_measured_fraction_max 0.901
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.502
_diffrn_reflns_theta_min         1.658
_diffrn_source                   'Rotating Anode'
_exptl_absorpt_coefficient_mu    0.260
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7143
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.294
_exptl_crystal_description       block
_exptl_crystal_F_000             3136
_exptl_crystal_preparation       'Magnetic properties'
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: MeNO2 and ether'
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.430
_refine_diff_density_min         -0.677
_refine_diff_density_rms         0.067
_refine_ls_abs_structure_details
;
 Flack x determined using 2842 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.040(16)
_refine_ls_extinction_coef       0.00113(15)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.144
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1002
_refine_ls_number_reflns         15897
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.144
_refine_ls_R_factor_all          0.1170
_refine_ls_R_factor_gt           0.0914
_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^)+(0.0177P)^2^+8.7040P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1426
_refine_ls_wR_factor_ref         0.1589
_reflns_Friedel_coverage         0.675
_reflns_Friedel_fraction_full    0.898
_reflns_Friedel_fraction_max     0.807
_reflns_number_gt                12429
_reflns_number_total             15897
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt04893b2.cif
_cod_data_source_block           1879554
_cod_depositor_comments
'Adding full bibliography for 7049629--7049635.cif.'
_cod_database_code               7049630
_shelx_shelxl_version_number     2014/7
_exptl_absorpt_special_details   SADABS
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C1(H1), C17(H17), C24(H24), C40(H40)
2.b Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C16(H16A,H16B), C31(H31A,H31B), C39(H39A,H39B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5), C6(H6), C7(H7), C11(H11), C12(H12), C13(H13),
 C19(H19), C20(H20), C21(H21), C22(H22), C23(H23), C26(H26), C27(H27), C28(H28),
  C29(H29), C30(H30), C34(H34), C35(H35), C36(H36), C42(H42), C43(H43),
 C44(H44), C45(H45), C46(H46), C48(H48), C49(H49), C50(H50), C51(H51), C52(H52),
  C54(H54), C55(H55), C56(H56), C57(H57), C58(H58), C60(H60), C61(H61),
 C62(H62), C63(H63), C64(H64), C66(H66), C67(H67), C68(H68), C69(H69), C70(H70),
  C72(H72), C73(H73), C74(H74), C75(H75), C76(H76), C78(H78), C79(H79),
 C80(H80), C81(H81), C82(H82), C84(H84), C85(H85), C86(H86), C87(H87), C88(H88),
  C90(H90), C91(H91), C92(H92), C93(H93), C94(H94)
2.d Idealised Me refined as rotating group:
 C95(H95A,H95B,H95C)
;
_shelx_res_checksum              35083
_olex2_submission_special_instructions 'No special instructions were received'