Topochemical photocycloaddition in two-dimensional lead-halide coordination polymers with tunable phosphorescence.
Chen, Zhongwei; Wu, Jin; Deng, Zeyu; Chen, Congcong; Feng, Jianning; Ma, Baixu; Tao, Lizhi; Mao, Lingling; Lu, Haipeng; Chemical science 16 (2025) 16004–16015; doi:10.1039/d5sc04306a

data_1575251
_publ_section_title
;
 Topochemical photocycloaddition in two-dimensional lead-halide
 coordination polymers with tunable phosphorescence.
;
_journal_issue                   35
_journal_name_full               'Chemical science'
_journal_page_first              16004
_journal_page_last               16015
_journal_paper_doi               10.1039/d5sc04306a
_journal_volume                  16
_journal_year                    2025
_chemical_formula_moiety         'C12 H10 I2 N2 Pb'
_chemical_formula_sum            'C12 H10 I2 N2 Pb'
_chemical_formula_weight         643.21
_space_group_crystal_system      monoclinic
_space_group_IT_number           12
_space_group_name_Hall           '-C 2y'
_space_group_name_H-M_alt        'C 1 2/m 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2024-08-29
_audit_creation_method
;
Olex2 1.5
(compiled 2024.02.16 svn.r378c4104 for OlexSys, GUI svn.r6928)
;
_audit_update_record
;
2024-12-03 deposited with the CCDC.	2025-07-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.172(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.8252(5)
_cell_length_b                   14.2484(4)
_cell_length_c                   4.2928(2)
_cell_measurement_reflns_used    1600
_cell_measurement_temperature    99.97(10)
_cell_measurement_theta_max      28.6450
_cell_measurement_theta_min      4.2640
_cell_volume                     784.46(5)
_computing_cell_refinement       'CrysAlisPro 1.171.43.90 (Rigaku OD, 2023)'
_computing_data_collection
'CrysAlisPro system (CCD 43.90 (release 15-09-2023))'
_computing_data_reduction        'CrysAlisPro 1.171.43.90 (Rigaku OD, 2023)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      99.97(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.3577
_diffrn_detector_type            Atlas
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -40.00  48.00   1.00    6.00    --   15.85 -77.00 120.00   88
  2  \w    -39.00  50.00   1.00    6.00    --   15.85 -77.00-120.00   89
  3  \w    -38.00  50.00   1.00    6.00    --   15.85 -77.00   0.00   88
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0014611000
_diffrn_orient_matrix_UB_12      -0.0497461000
_diffrn_orient_matrix_UB_13      0.0013664000
_diffrn_orient_matrix_UB_21      -0.0229111000
_diffrn_orient_matrix_UB_22      0.0001406000
_diffrn_orient_matrix_UB_23      -0.1506100000
_diffrn_orient_matrix_UB_31      0.0503126000
_diffrn_orient_matrix_UB_32      -0.0013840000
_diffrn_orient_matrix_UB_33      -0.0680875000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0263
_diffrn_reflns_av_unetI/netI     0.0311
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       4
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            2136
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.303
_diffrn_reflns_theta_min         2.859
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    14.671
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.43082
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.43.90 (Rigaku Oxford Diffraction, 2023)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    2.723
_exptl_crystal_description       plate
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         2.148
_refine_diff_density_min         -1.991
_refine_diff_density_rms         0.232
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.179
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     84
_refine_ls_number_reflns         747
_refine_ls_number_restraints     145
_refine_ls_restrained_S_all      1.104
_refine_ls_R_factor_all          0.0421
_refine_ls_R_factor_gt           0.0406
_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^)+(0.0501P)^2^+14.4375P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1044
_refine_ls_wR_factor_ref         0.1056
_reflns_Friedel_coverage         0.000
_reflns_number_gt                722
_reflns_number_total             747
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc04306a2.cif
_cod_data_source_block           pbi-2+2
_cod_depositor_comments
'Adding full bibliography for 1575246--1575255.cif.'
_cod_database_code               1575251
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'Pb I C N'
_shelx_estimated_absorpt_t_max   0.591
_shelx_estimated_absorpt_t_min   0.202
_diffrn_oxdiff_digest_frames
;
01b0a535ff5a4624fbdeb16aec0474ffd400279e1f1
;
_diffrn_oxdiff_digest_hkl
;
011fbfb86690a26f0255b1cb034fb215fe3332
;
_reflns_odcompleteness_completeness 99.56
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     27.04
_olex2_refinement_description
;
1. Restrained distances
 C8-C3_$1 = C3_$1-C1_$1
 1.39 with sigma of 0.02
 C8-C3 = C3-C1
 1.39 with sigma of 0.02
 C8_$5-C0AA_$5
 1.5 with sigma of 0.2
 C1A-C3A
 1.39 with sigma of 0.02
 C0AA-C0AA_$4
 1.5 with sigma of 0.1
 C2_$4-C2
 1.5 with sigma of 0.1
 C8-C1_$1
 2.408 with sigma of 0.04
 C8-C1
 2.408 with sigma of 0.04
 C2_$2-C0AA_$3 \\sim C2_$2-C0AA
 with sigma of 0.02
 C2_$2-C0AA_$3 \\sim C2_$4-C0AA_$3
 with sigma of 0.02
 C2_$2-C0AA \\sim C2_$4-C0AA
 with sigma of 0.02
 C2_$4-C0AA_$3 \\sim C2_$4-C0AA
 with sigma of 0.02
 C0AA_$2-C0AA \\sim C2_$2-C2
 with sigma of 0.02
 C0AA-C0AA_$2 \\sim C0AA_$3-C0AA_$2
 with sigma of 0.02
 C2-C2_$2 \\sim C2_$3-C2_$2
 with sigma of 0.02
2. Restrained planarity
 C8, C3_$1, C1_$1, N1, C1, C3
 with sigma of 0.1
 C1A_$1, C3A_$1, C3A, C1A
 with sigma of 0.1
3. Uiso/Uaniso restraints and constraints
N1 \\sim C1 \\sim C3 \\sim C8 \\sim C1A \\sim C3A: within 2A with sigma of 0.01
and sigma for terminal atoms of 0.02 within 2A
Uanis(C1) \\sim Ueq, Uanis(C3) \\sim Ueq, Uanis(C8) \\sim Ueq, Uanis(C0AA)
\\sim Ueq, Uanis(C2) \\sim Ueq, Uanis(C6) \\sim Ueq, Uanis(C3A) \\sim Ueq: with
sigma of 0.01 and sigma for terminal atoms of 0.02
4. Rigid body (RIGU) restrains
 N1, C1, C3, C8, C1A, C3A
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.02
5. Others
 Fixed Sof: C1(0.6) H1(0.6) C3(0.6) H3(0.6) C8(0.24) C2(0.25) H2(0.25)
 C0AA(0.25) H0AA(0.25) C1A(0.4) H1A(0.4) C3A(0.4) H3A(0.4) C6(0.26)
6.a Ternary CH refined with riding coordinates:
 C2(H2), C0AA(H0AA), C3A(H3A)
6.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C3(H3), C1A(H1A)
;
_shelx_res_checksum              84978
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.524
_oxdiff_exptl_absorpt_empirical_full_min 0.725