A ferrocene-based pseudopeptide chiroptical switch.
Opačak, Saša; Babić, Darko; Perić, Berislav; Marinić, Željko; Smrečki, Vilko; Pem, Barbara; Vinković Vrček, Ivana; Kirin, Srećko I; Dalton transactions (Cambridge, England : 2003) 50 (2021) 4504–4511; doi:10.1039/d1dt00508a

data_7706817
_publ_section_title
;
 A ferrocene-based pseudopeptide chiroptical switch.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4504
_journal_page_last               4511
_journal_paper_doi               10.1039/d1dt00508a
_journal_volume                  50
_journal_year                    2021
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C24 H26 Fe N2 O2'
_chemical_formula_sum            'C24 H26 Fe N2 O2'
_chemical_formula_weight         430.32
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2020-11-26 deposited with the CCDC.	2021-03-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 105.4798(18)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.80821(15)
_cell_length_b                   10.91184(19)
_cell_length_c                   11.1489(2)
_cell_measurement_reflns_used    3037
_cell_measurement_temperature    128(5)
_cell_measurement_theta_max      75.7290
_cell_measurement_theta_min      4.0960
_cell_volume                     1032.69(3)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46 (Rigaku OD, 2018)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      128(5)
_diffrn_detector_area_resol_mean 10.4323
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Xcalibur, Ruby, Nova'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0346
_diffrn_reflns_av_unetI/netI     0.0567
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5162
_diffrn_reflns_point_group_measured_fraction_full 0.854
_diffrn_reflns_point_group_measured_fraction_max 0.824
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         75.692
_diffrn_reflns_theta_min         4.115
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    6.029
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.84424
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.384
_exptl_crystal_description       prism
_exptl_crystal_F_000             452
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.060
_refine_diff_density_max         0.388
_refine_diff_density_min         -0.339
_refine_diff_density_rms         0.053
_refine_ls_abs_structure_details
;
 Flack x determined using 1179 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.011(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         3538
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0363
_refine_ls_R_factor_gt           0.0353
_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^)+(0.0496P)^2^+0.0420P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0923
_refine_ls_wR_factor_ref         0.0933
_reflns_Friedel_coverage         0.575
_reflns_Friedel_fraction_full    0.690
_reflns_Friedel_fraction_max     0.636
_reflns_number_gt                3444
_reflns_number_total             3538
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt00508a3.cif
_cod_data_source_block           1b
_cod_depositor_comments
'Adding full bibliography for 7706817--7706820.cif.'
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7706817
_shelx_shelxl_version_number     2018/3
_exptl_absorpt_special_details   '\w scans'
_shelx_res_checksum              85016
_shelx_hkl_checksum              22313