Fluorine as a robust balancer for tuning the reactivity of topo-photoreactions of chalcones and the photomechanical effects of molecular crystals
Shu, Yuanhong; Ye, Kaiqi; Yue, Yuan; Sun, Jingbo; Wang, Haoran; Zhong, Jiangbin; Yang, Xiqiao; Gao, Hongqiang; Lu, Ran; CrystEngComm 23 (2021) 5856–5868; doi:10.1039/D1CE00086A

data_7242538
_publ_section_title
;
 Fluorine as a robust balancer for tuning the reactivity of
 topo-photoreactions of chalcones and the photomechanical effects of
 molecular crystals
;
_journal_issue                   34
_journal_name_full               CrystEngComm
_journal_page_first              5856
_journal_page_last               5868
_journal_paper_doi               10.1039/D1CE00086A
_journal_volume                  23
_journal_year                    2021
_chemical_formula_moiety         'C30 H18 Cl2 F4 O2'
_chemical_formula_sum            'C30 H18 Cl2 F0.25 O6'
_chemical_formula_weight         550.09
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2021-03-11
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-03-11 deposited with the CCDC.	2021-03-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 114.0250(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.4423(4)
_cell_length_b                   24.3784(8)
_cell_length_c                   8.8538(3)
_cell_measurement_reflns_used    9754
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.51
_cell_measurement_theta_min      3.02
_cell_volume                     2452.91(14)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'olex2.solve (Bourhis et al., 2015)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.997
_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  0.0199
_diffrn_reflns_av_unetI/netI     0.0273
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            17516
_diffrn_reflns_point_group_measured_fraction_full 0.903
_diffrn_reflns_point_group_measured_fraction_max 0.844
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.516
_diffrn_reflns_theta_min         3.023
_exptl_absorpt_coefficient_mu    0.313
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.490
_exptl_crystal_description       plate
_exptl_crystal_F_000             1129
_exptl_crystal_size_max          0.9
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.295
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.048
_refine_ls_abs_structure_details
;
 Flack x determined using 2337 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.012(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         6323
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0326
_refine_ls_R_factor_gt           0.0294
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0348P)^2^+1.3818P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0702
_refine_ls_wR_factor_ref         0.0726
_reflns_Friedel_coverage         0.689
_reflns_Friedel_fraction_full    0.809
_reflns_Friedel_fraction_max     0.690
_reflns_number_gt                6016
_reflns_number_total             6323
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1ce00086a31.cif
_cod_data_source_block           D-2FChCl-4
_cod_depositor_comments
'Adding full bibliography for 7242537--7242549.cif.'
_cod_database_code               7242538
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Ternary CH refined with riding coordinates:
 C6(H6), C7(H7), C15(H15), C16(H16)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C10(H10), C11(H11), C13(H13), C14(H14), C17(H17), C18(H18),
 C20(H20), C22(H22), C24(H24), C26(H26), C28(H28), C30(H30)
;
_shelx_res_checksum              2894
_shelx_hkl_checksum              82692
_olex2_submission_special_instructions 'No special instructions were received'