Amplified circularly polarized luminescence of chiral lanthanide-based chains through helical assembly
Wang, Xue-Ting; Lv, Fang-Wen; Qin, Hang; Dai, Xin-Tong; Jin, Shan; Zheng, Xiu-Ying; CrystEngComm 26 (2024) 6676–6682; doi:10.1039/D4CE00957F

data_7249511
_publ_section_title
;
 Amplified circularly polarized luminescence of chiral lanthanide-based
 chains through helical assembly
;
_journal_issue                   47
_journal_name_full               CrystEngComm
_journal_page_first              6676
_journal_page_last               6682
_journal_paper_doi               10.1039/D4CE00957F
_journal_volume                  26
_journal_year                    2024
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H22 Eu O8, Cl O4'
_chemical_formula_sum            'C18 H22 Cl Eu O12'
_chemical_formula_weight         617.76
_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'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2024-10-21
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2024-10-23 deposited with the CCDC.	2024-10-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.7671(4)
_cell_length_b                   19.0219(3)
_cell_length_c                   6.25350(10)
_cell_measurement_reflns_used    40020
_cell_measurement_temperature    120
_cell_measurement_theta_max      69.61
_cell_measurement_theta_min      3.31
_cell_volume                     2232.41(7)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      120
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'STOE STADIVARI'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54186
_diffrn_reflns_av_R_equivalents  0.0395
_diffrn_reflns_av_unetI/netI     0.0229
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            35515
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        67.686
_diffrn_reflns_theta_max         69.417
_diffrn_reflns_theta_min         3.308
_exptl_absorpt_coefficient_mu    21.774
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  1.0000
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
STOE LANA, absorption correction by scaling of reflection intensities.
J. Koziskova, F. Hahn, J. Richter, J. Kozisek, "Comparison of different
absorption corrections on the model structure of tetrakis(\m~2~-acetato)-
diaqua-di-copper(II)", Acta Chimica Slovaca, vol. 9, no. 2, 2016, pp. 136 - 140.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.838
_exptl_crystal_description       block
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.02
_exptl_crystal_size_mid          0.01
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.011
_refine_diff_density_min         -0.455
_refine_diff_density_rms         0.080
_refine_ls_abs_structure_details
;
 Flack x determined using 1537 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.015(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     296
_refine_ls_number_reflns         4108
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0284
_refine_ls_R_factor_gt           0.0252
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0276P)^2^+4.7291P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0575
_refine_ls_wR_factor_ref         0.0592
_reflns_Friedel_coverage         0.697
_reflns_Friedel_fraction_full    0.975
_reflns_Friedel_fraction_max     0.955
_reflns_number_gt                3911
_reflns_number_total             4108
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ce00957f2.cif
_cod_data_source_block           S-Eu
_cod_depositor_comments
'Adding full bibliography for 7249504--7249511.cif.'
_cod_database_code               7249511
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.812
_shelx_estimated_absorpt_t_min   0.670
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H,H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(C15) \\sim Ueq, Uanis(C16) \\sim Ueq, Uanis(C13) \\sim Ueq, Uanis(C14)
\\sim Ueq: with sigma of 0.001 and sigma for terminal atoms of 0.002
3. Others
 Fixed Sof: O15(0.5) O10(0.5) O11(0.5) O9(0.5) O14(0.5) O13(0.5)
4.a Rotating group:
 O1(H1A,H1B), O3(H3A,H3B)
4.b Ternary CH refined with riding coordinates:
 C2(H2), C11(H11)
4.c Aromatic/amide H refined with riding coordinates:
 C5(H5), C4(H4), C8(H8), C7(H7), C6(H6), C14(H14), C15(H15), C16(H16),
 C17(H17), C13(H13)
4.d Fitted hexagon refined as free rotating group:
 C5(C4,C3,C8,C7,C6), C14(C15,C16,C17,C12,C13)
4.e Idealised Me refined as rotating group:
 C1(H1C,H1D,H1E), C18(H18A,H18B,H18C)
;
_shelx_res_checksum              9873
_shelx_hkl_checksum              58965
_olex2_submission_special_instructions 'No special instructions were received'