4f → 3d sensitization: a luminescent Eu<sup>II</sup>-Mn<sup>II</sup> heteronuclear complex with a near-unity quantum yield.
Yu, Gang; Liu, Huanyu; Yan, Wenchao; Guo, Ruoyao; Wu, Aoben; Zhao, Zifeng; Liu, Zhiwei; Bian, Zuqiang; Materials horizons 10 (2023) 625–631; doi:10.1039/d2mh01123a

data_1568126
_publ_section_title
;
 4f &#x2192; 3d sensitization: a luminescent
 Eu<sup>II</sup>-Mn<sup>II</sup> heteronuclear complex with a near-unity
 quantum yield.
;
_journal_issue                   2
_journal_name_full               'Materials horizons'
_journal_page_first              625
_journal_page_last               631
_journal_paper_doi               10.1039/d2mh01123a
_journal_volume                  10
_journal_year                    2023
_chemical_formula_sum            'C20 H45.11 Br2.89 Mn N2 O9.11 Sr'
_chemical_formula_weight         832.95
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2022-04-04 deposited with the CCDC.	2022-11-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.420(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.5435(4)
_cell_length_b                   20.2186(5)
_cell_length_c                   13.5459(5)
_cell_measurement_reflns_used    6645
_cell_measurement_temperature    180.00(10)
_cell_measurement_theta_max      27.5770
_cell_measurement_theta_min      2.4780
_cell_volume                     3160.55(18)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      180.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.838
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy R, DW system, HyPix'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0451
_diffrn_reflns_av_unetI/netI     0.0719
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.838
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            23695
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.838
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.706
_diffrn_reflns_theta_min         2.502
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    5.785
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.75412
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.29a (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.751
_exptl_crystal_description       rod-like
_exptl_crystal_F_000             1665
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.761
_refine_diff_density_min         -0.625
_refine_diff_density_rms         0.098
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     422
_refine_ls_number_reflns         8232
_refine_ls_number_restraints     66
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0971
_refine_ls_R_factor_gt           0.0482
_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^)+(0.0450P)^2^+0.8842P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0945
_refine_ls_wR_factor_ref         0.1083
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5215
_reflns_number_total             8232
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2mh01123a2.cif
_cod_data_source_block           4
_cod_depositor_comments
'Adding full bibliography for 1568124--1568127.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1568126
_shelx_shelxl_version_number     2014/7
_oxdiff_exptl_absorpt_empirical_full_min 0.786
_oxdiff_exptl_absorpt_empirical_full_max 1.231
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              27737