Photochromic pyridylfulgenates and their cadmium complexes
Mai, Ying-Ying; Liu, Li; Dai, Jing-Cao; CrystEngComm 27 (2025) 1548–1559; doi:10.1039/D4CE01219D

data_7249876
_publ_section_title
;
 Photochromic pyridylfulgenates and their cadmium complexes
;
_journal_issue                   11
_journal_name_full               CrystEngComm
_journal_page_first              1548
_journal_page_last               1559
_journal_paper_doi               10.1039/D4CE01219D
_journal_volume                  27
_journal_year                    2025
_chemical_formula_sum            'C36 H32 Cd N2 O10'
_chemical_formula_weight         765.03
_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   mixed
_audit_creation_method           SHELXL-2014
_audit_update_record
;
2023-09-20 deposited with the CCDC.	2025-01-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 96.129(7)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.1419(11)
_cell_length_b                   8.5142(7)
_cell_length_c                   16.4832(10)
_cell_measurement_reflns_used    2110
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.7550
_cell_measurement_theta_min      3.4520
_cell_volume                     1694.3(2)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'SHELXTL-2014 (Sheldrick, 2014)'
_computing_publication_material  'SHELXTL-2014 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXTL-2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.1213
_diffrn_measured_fraction_theta_full 0.968
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0283
_diffrn_reflns_av_unetI/netI     0.0393
_diffrn_reflns_Laue_measured_fraction_full 0.968
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            6934
_diffrn_reflns_point_group_measured_fraction_full 0.968
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.026
_diffrn_reflns_theta_min         2.928
_diffrn_source                   'fine-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.706
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.91771
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.500
_exptl_crystal_description       needle
_exptl_crystal_F_000             780
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.030
_refine_diff_density_max         1.184
_refine_diff_density_min         -0.797
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         2961
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0586
_refine_ls_R_factor_gt           0.0422
_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^)+(0.0506P)^2^+1.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0993
_refine_ls_wR_factor_ref         0.1090
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2302
_reflns_number_total             2961
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ce01219d2.cif
_cod_data_source_block           compound3
_cod_depositor_comments
'Adding full bibliography for 7249873--7249878.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7249876
_shelx_estimated_absorpt_t_min   0.719
_shelx_estimated_absorpt_t_max   0.979
_shelxl_version_number           2014-3
_shelx_res_checksum              84103
_shelx_hkl_checksum              46781