2,3-Diarylmaleate salts as a versatile class of diarylethenes with a full spectrum of photoactivity in water.
Bolotova, Iumzhana A.; Ustyuzhanin, Alexander O.; Sergeeva, Ekaterina S.; Faizdrakhmanova, Anna A.; Hai, Yu; Stepanov, Andrey V.; Ushakov, Igor A.; Lyssenko, Konstantin A.; You, Lei; Lvov, Andrey G.; Chemical science 14 (2023) 9553–9559; doi:10.1039/d3sc02165c

data_1569699
_publ_section_title
;
 2,3-Diarylmaleate salts as a versatile class of diarylethenes with a full
 spectrum of photoactivity in water.
;
_journal_issue                   35
_journal_name_full               'Chemical science'
_journal_page_first              9553
_journal_page_last               9559
_journal_paper_doi               10.1039/d3sc02165c
_journal_volume                  14
_journal_year                    2023
_chemical_formula_moiety         'C18 H16 O4'
_chemical_formula_sum            'C18 H16 O4'
_chemical_formula_weight         296.31
_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
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2023-04-11 deposited with the CCDC.	2023-08-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.799(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.7095(4)
_cell_length_b                   8.6086(4)
_cell_length_c                   19.3283(8)
_cell_measurement_reflns_used    2670
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      30.2
_cell_measurement_theta_min      2.5
_cell_volume                     1445.99(11)
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 Quest with Photon III detector'
_diffrn_measurement_method       '\f and \w shutterless scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0694
_diffrn_reflns_av_unetI/netI     0.0690
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            13735
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.991
_diffrn_reflns_theta_min         2.112
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.8622
_exptl_absorpt_correction_T_min  0.7650
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.361
_exptl_crystal_description       block
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.340
_exptl_crystal_size_mid          0.280
_exptl_crystal_size_min          0.230
_refine_diff_density_max         0.336
_refine_diff_density_min         -0.326
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3843
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.0907
_refine_ls_R_factor_gt           0.0576
_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^)+(0.0530P)^2^+1.2524P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1263
_refine_ls_wR_factor_ref         0.1457
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2727
_reflns_number_total             3843
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3sc02165c2.cif
_cod_data_source_block           b
_cod_depositor_comments
'Adding full bibliography for 1569699--1569704.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1569699
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.968
_shelx_estimated_absorpt_t_max   0.978
_shelx_res_checksum              37843