Three Photochromic Materials based on POMs and Viologens for UV Probing, Visual Detection of Metal Ions and Amine Detecting
Xu, Xi; Yang, Mengle; Lu, Qinghai; Yu, Shuang; Ma, Shufang; Tian, Aixiang; Ying, Jun; CrystEngComm  (2022) –; doi:10.1039/D2CE01244H

data_7245570
_publ_section_title
;
 Three Photochromic Materials based on POMs and Viologens for UV Probing,
 Visual Detection of Metal Ions and Amine Detecting
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/D2CE01244H
_journal_year                    2022
_chemical_formula_moiety         'C7 H8 Cu2 N2 O11'
_chemical_formula_sum            'C7 H8 Cu2 N2 O11'
_chemical_formula_weight         423.23
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2022-08-04 deposited with the CCDC.	2022-09-27 downloaded from the CCDC.
;
_cell_angle_alpha                105.515(6)
_cell_angle_beta                 92.979(5)
_cell_angle_gamma                97.637(5)
_cell_formula_units_Z            2
_cell_length_a                   6.9081(4)
_cell_length_b                   8.0731(5)
_cell_length_c                   11.5005(8)
_cell_measurement_reflns_used    2470
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      76.1438
_cell_measurement_theta_min      4.0028
_cell_volume                     609.95(7)
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.3503
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0282
_diffrn_reflns_av_unetI/netI     0.0341
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.981
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4908
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.981
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         76.328
_diffrn_reflns_theta_min         4.006
_exptl_absorpt_coefficient_mu    5.005
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.69521
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.84a (Rigaku Oxford Diffraction, 2020)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    2.304
_exptl_crystal_description       block
_exptl_crystal_F_000             420
_refine_diff_density_max         0.453
_refine_diff_density_min         -0.730
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         2517
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0388
_refine_ls_R_factor_gt           0.0327
_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^)+(0.0523P)^2^+0.2802P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0860
_refine_ls_wR_factor_ref         0.0912
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2190
_reflns_number_total             2517
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ce01244h2.cif
_cod_data_source_block           3
_cod_database_code               7245570
_shelx_shelxl_version_number     2016/6
_shelx_res_checksum              58900
_shelx_hkl_checksum              20565