Photochromism and photomagnetism in three cyano-bridged 3d-4f heterobimetallic viologen frameworks.
Li, Meng-Hua; You, Ming-Hua; Lin, Mei-Jin; Dalton transactions (Cambridge, England : 2003) 50 (2021) 4959–4966; doi:10.1039/d0dt04358c

data_7706834
_publ_section_title
;
 Photochromism and photomagnetism in three cyano-bridged 3d-4f
 heterobimetallic viologen frameworks.
;
_journal_issue                   14
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4959
_journal_page_last               4966
_journal_paper_doi               10.1039/d0dt04358c
_journal_volume                  50
_journal_year                    2021
_chemical_formula_moiety         'C20 H19.568 Co Eu N8 O8, 3(H2 O), C H4 O'
_chemical_formula_sum            'C21 H29.57 Co Eu N8 O12'
_chemical_formula_weight         796.98
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2021-03-06
_audit_creation_method
;
Olex2 1.3
(compiled 2020.02.04 svn.rd84adfe8 for OlexSys, GUI svn.r6032)
;
_audit_update_record
;
2021-03-05 deposited with the CCDC.	2021-03-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 108.862(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.8265(12)
_cell_length_b                   8.1126(4)
_cell_length_c                   20.1853(9)
_cell_measurement_reflns_used    5127
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.9550
_cell_measurement_theta_min      2.1210
_cell_volume                     3072.3(3)
_computing_cell_refinement       'CrysAlisPro 1.171.39.28b (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.39.28b (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.39.28b (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -78.00 -52.00   0.50   10.00    --   -9.60  39.00 -96.00   52
  2  \w     53.00  92.00   0.50   10.00    --    5.00   0.00 -30.00   78
  3  \w     -7.00  19.00   0.50   10.00    --    5.00   0.00 -30.00   52
  4  \w    -68.00 -37.00   0.50   10.00    --    5.00   0.00 -30.00   62
  5  \w     53.00  80.00   0.50   10.00    --   -9.60  43.00  30.00   54
  6  \w    -99.00  49.00   0.50   10.00    --   -9.60  43.00  30.00  296
  7  \w    -17.00  74.00   0.50   10.00    --   -9.60  39.00 -96.00  182
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB AFC11 (RCD3): quarter-chi single'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0007206000
_diffrn_orient_matrix_UB_12      0.0552920000
_diffrn_orient_matrix_UB_13      0.0274236000
_diffrn_orient_matrix_UB_21      0.0376845000
_diffrn_orient_matrix_UB_22      -0.0062446000
_diffrn_orient_matrix_UB_23      0.0131699000
_diffrn_orient_matrix_UB_31      0.0028986000
_diffrn_orient_matrix_UB_32      0.0674423000
_diffrn_orient_matrix_UB_33      -0.0213018000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.2015
_diffrn_reflns_av_unetI/netI     0.0913
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            12033
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.025
_diffrn_reflns_theta_max         25.025
_diffrn_reflns_theta_min         2.132
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    2.632
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79347
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.28b (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light brown'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    brown
_exptl_crystal_density_diffrn    1.723
_exptl_crystal_description       block
_exptl_crystal_F_000             1590
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.470
_refine_diff_density_min         -1.164
_refine_diff_density_rms         0.196
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.088
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     279
_refine_ls_number_reflns         2715
_refine_ls_number_restraints     165
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0729
_refine_ls_R_factor_gt           0.0562
_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^)+(0.0617P)^2^+28.1516P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1234
_refine_ls_wR_factor_ref         0.1386
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2284
_reflns_number_total             2715
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0dt04358c2.cif
_cod_data_source_block           co-eu-a
_cod_depositor_comments
'Adding full bibliography for 7706831--7706834.cif.'
_cod_database_code               7706834
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.726
_shelx_estimated_absorpt_t_min   0.571
_reflns_odcompleteness_completeness 99.67
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, {H00f,H00g,H00K} of C00K
 At 1.5 times of:
  All O(H) groups, {H4a,H4b,H4c} of C4, All O(H,H) groups
2. Restrained distances
 O-C4
 1.45 with sigma of 0.01
 N00C-C00M \\sim N00D-C00N \\sim C00M-C00L \\sim C3-C00N \\sim C00L-C00F \\sim
C3-C00G \\sim C00F-C00E
 \\sim C5-C00G \\sim C00I-C00E \\sim C2-C5 \\sim N00C-C00I \\sim N00D-C2 \\sim
N00C-C00K \\sim N00D-C00K
 with sigma of 0.02
 Eu01-O00D \\sim Eu01-O00E
 with sigma of 0.02
3. Uiso/Uaniso restraints and constraints
Uanis(N00C) \\sim Ueq, Uanis(C00E) \\sim Ueq, Uanis(C00F) \\sim Ueq,
Uanis(C00I) \\sim Ueq, Uanis(C00L) \\sim Ueq, Uanis(C00M) \\sim Ueq,
Uanis(N00D) \\sim Ueq, Uanis(C5) \\sim Ueq, Uanis(C00G) \\sim Ueq, Uanis(C2)
\\sim Ueq, Uanis(C3) \\sim Ueq, Uanis(C00N) \\sim Ueq: with sigma of 0.01 and
sigma for terminal atoms of 0.02
Uanis(O00D) = Uanis(O00E)
4. Others
 Sof(H00K)=Sof(N00D)=Sof(C5)=Sof(H5)=Sof(C00G)=Sof(C2)=Sof(H2)=Sof(C3)=Sof(H3)=
 Sof(C00N)=Sof(H00N)=1-FVAR(1)
 Sof(N00C)=Sof(C00E)=Sof(H00E)=Sof(C00F)=Sof(C00I)=Sof(H00I)=Sof(H00f)=
 Sof(H00g)=Sof(C00L)=Sof(H00L)=Sof(C00M)=Sof(H00M)=FVAR(1)
 Sof(O00E)=Sof(H00h)=Sof(H00j)=1-FVAR(2)
 Sof(O00D)=Sof(H00c)=Sof(H00d)=FVAR(2)
 Fixed Sof: O2(0.5) H2a(0.5) H2b(0.5) O(0.5) H(0.5) C4(0.5) H4a(0.5) H4b(0.5)
 H4c(0.5)
5.a Free rotating group:
 O009(H00o,H00p), O2(H2a,H2b)
5.b Rotating group:
 O006(H00a,H00b), O00D(H00c,H00d), O00E(H00h,H00j)
5.c Secondary CH2 refined with riding coordinates:
 C00K(H00f,H00g)
5.d Aromatic/amide H refined with riding coordinates:
 C00E(H00E), C00I(H00I), C00K(H00K), C00L(H00L), C00M(H00M), C5(H5), C2(H2),
 C3(H3), C00N(H00N)
5.e Tetrahedral OH refined with riding coordinates:
 O(H)
5.f Idealised Me refined as rotating group:
 C4(H4a,H4b,H4c)
;
_shelx_res_checksum              75520
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.720
_oxdiff_exptl_absorpt_empirical_full_min 0.763