Light-controlled efficient photoluminescence based on an europium β-diketonate with single-crystal-to-single-crystal [2+2] cycloaddition
Zhang, Jing; Li, Jing; Feng, Xin; Kong, Ming; Hu, Zhaobo; Zheng, You-Xuan; Song, You; Chemical Communications  (2019) –; doi:10.1039/C9CC05227E

data_7124262
_publ_section_title
;
 Light-controlled efficient photoluminescence based on an europium
 \b-diketonate with single-crystal-to-single-crystal [2+2] cycloaddition
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC05227E
_journal_year                    2019
_chemical_formula_sum            'C55 H38 F9 Gd N2 O7'
_chemical_formula_weight         1167.12
_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'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2017/1
_audit_update_record
;
2019-07-05 deposited with the CCDC.    2019-10-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.0640(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.1610(13)
_cell_length_b                   15.4629(15)
_cell_length_c                   24.040(2)
_cell_measurement_reflns_used    9904
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.59
_cell_measurement_theta_min      2.30
_cell_volume                     4843.9(8)
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0317
_diffrn_reflns_av_unetI/netI     0.0293
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            43371
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.667
_diffrn_reflns_theta_min         2.044
_exptl_absorpt_coefficient_mu    1.461
_exptl_crystal_density_diffrn    1.600
_exptl_crystal_description       block
_exptl_crystal_F_000             2332
_refine_diff_density_max         0.511
_refine_diff_density_min         -0.495
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     672
_refine_ls_number_reflns         11209
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0322
_refine_ls_R_factor_gt           0.0246
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0154P)^2^+4.3045P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0504
_refine_ls_wR_factor_ref         0.0527
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9756
_reflns_number_total             11209
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc05227e2.cif
_cod_data_source_block           2
_cod_original_cell_volume        4843.8(8)
_cod_database_code               7124262
_shelx_shelxl_version_number     2017/1
_shelx_res_checksum              53996