# Electronic Supplementary Material (ESI) for Chemical Science.
# This journal is © The Royal Society of Chemistry 2020

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_dyf_10_10
_database_code_depnum_ccdc_archive 'CCDC 1950436'
loop_
_audit_author_name
_audit_author_address
'Jun Xu'
;Tianjin University
China
;
_audit_update_record             
;
2019-08-30 deposited with the CCDC.	2019-12-06 downloaded from the CCDC.
;
_audit_creation_date             2018-10-11
_audit_creation_method           
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_shelx_SHELXL_version_number     2018/3
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         'C12 H8 I2 N2 O7'
_chemical_formula_sum            'C12 H8 I2 N2 O7'
_chemical_formula_weight         546.00
_chemical_absolute_configuration ad
_chemical_melting_point          ?
_chemical_oxdiff_formula         'C10 H8 I2 N4 O7'
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0181 0.0091 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
I I -0.3257 6.8362 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_shelx_space_group_comment       
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_H-M_alt        'P n a 21'
_space_group_name_Hall           'P 2c -2n'
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, z+1/2'
'x+1/2, -y+1/2, z'
'-x+1/2, y+1/2, z+1/2'

_cell_length_a                   8.2007(5)
_cell_length_b                   7.7793(5)
_cell_length_c                   24.6164(18)
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_volume                     1570.42(18)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    2005
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      72.3550
_cell_measurement_theta_min      3.5850
_shelx_estimated_absorpt_T_max   0.721
_shelx_estimated_absorpt_T_min   0.128
_exptl_absorpt_coefficient_mu    31.828
_exptl_absorpt_correction_T_max  0.808
_exptl_absorpt_correction_T_min  0.116
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details   
;
CrysAlisPro 1.171.39.45g (Rigaku Oxford Diffraction, 2018)
Numerical absorption correction based on gaussian integration over
			a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            ?
_exptl_crystal_density_diffrn    2.309
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       needle
_exptl_crystal_F_000             1024
loop_
_exptl_crystal_face_index_h
_exptl_crystal_face_index_k
_exptl_crystal_face_index_l
_exptl_crystal_face_perp_dist
0 -1 5 0.0081
0 1 -5 0.0081
5 0 -1 0.0524
-5 0 1 0.0524
0 5 3 0.0057
0 -5 -3 0.0057

_exptl_crystal_size_max          0.11
_exptl_crystal_size_mid          0.022
_exptl_crystal_size_min          0.011
loop_
_exptl_oxdiff_crystal_face_indexfrac_h
_exptl_oxdiff_crystal_face_indexfrac_k
_exptl_oxdiff_crystal_face_indexfrac_l
_exptl_oxdiff_crystal_face_x
_exptl_oxdiff_crystal_face_y
_exptl_oxdiff_crystal_face_z
0.0147 -0.9978 4.9629 -0.0491 0.2515 -0.2641
-0.0147 0.9978 -4.9629 0.0491 -0.2515 0.2641
4.9816 0.0091 -1.0199 0.1541 0.6493 0.6603
-4.9816 -0.0091 1.0199 -0.1541 -0.6493 -0.6603
-0.0014 4.9756 3.0229 0.9566 -0.2979 0.0545
0.0014 -4.9756 -3.0229 -0.9566 0.2979 -0.0545

_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0583
_diffrn_reflns_av_unetI/netI     0.0734
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.952
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            5347
_diffrn_reflns_point_group_measured_fraction_full 0.821
_diffrn_reflns_point_group_measured_fraction_max 0.777
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.913
_diffrn_reflns_theta_min         3.591
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean ?
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.952
_diffrn_measurement_details      
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  tₑₓₚ   ω     θ     κ     φ   Frames
#--------------------------------------------------------------------------
  1  ω     -4.00  54.00   0.50    1.00    --   46.12 -57.00 -18.00  116
  2  ω   -107.00 -28.00   0.50    2.00    -- -100.00  67.00 -37.00  158
  3  ω     41.00 102.00   0.50    2.00    --  101.75-111.00 108.00  122
  4  ω    100.00 158.00   0.50    2.00    --  101.75  57.00 123.00  116
  5  ω   -116.00 -90.00   0.50    1.00    --  -46.12-125.00 120.00   52
  6  ω    -26.00  60.00   0.50    1.00    --   46.12 -57.00 120.00  172
  7  ω   -106.00 -53.00   0.50    2.00    -- -100.00  45.00-150.00  106
  8  ω   -172.00-111.00   0.50    2.00    -- -100.00 -45.00-120.00  122
  9  ω     76.00 101.00   0.50    2.00    --  101.75 -94.00-180.00   50
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'ROD, Synergy Custom system, HyPix'
_diffrn_measurement_method       'ω scans'
_diffrn_orient_matrix_type       
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0358496000
_diffrn_orient_matrix_UB_12      0.1767607000
_diffrn_orient_matrix_UB_13      0.0255426000
_diffrn_orient_matrix_UB_21      0.1374684000
_diffrn_orient_matrix_UB_22      -0.0805405000
_diffrn_orient_matrix_UB_23      0.0340802000
_diffrn_orient_matrix_UB_31      0.1230963000
_diffrn_orient_matrix_UB_32      0.0387908000
_diffrn_orient_matrix_UB_33      -0.0457762000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_source                   'Rotating-anode X-ray tube'
_diffrn_source_type              'Rigaku (Cu) X-ray Source'
_reflns_Friedel_coverage         0.593
_reflns_Friedel_fraction_full    0.638
_reflns_Friedel_fraction_max     0.593
_reflns_number_gt                2048
_reflns_number_total             2485
_reflns_odcompleteness_completeness 99.64
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     66.97
_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;
_reflns_threshold_expression     'I > 2σ(I)'
_computing_cell_refinement       'CrysAlisPro 1.171.39.45g (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.45g (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.45g (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_refine_diff_density_max         1.687
_refine_diff_density_min         -1.015
_refine_diff_density_rms         0.143
_refine_ls_abs_structure_details 
;
 Classical Flack method preferred over Parsons because s.u. lower.
;
_refine_ls_abs_structure_Flack   -0.01(3)
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.098
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2485
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0662
_refine_ls_R_factor_gt           0.0533
_refine_ls_restrained_S_all      1.098
_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/[σ²(Fo²)+(0.0402P)²+8.5244P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1252
_refine_ls_wR_factor_ref         0.1323
_refine_special_details          ?
_olex2_refinement_description    
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C9(H9), C2(H2), C11(H11), C1(H1), C8(H8), C10(H10), C5(H5), C6(H6)
;
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   ?
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
I2 I 0.37379(14) 0.72929(13) 0.56224(8) 0.0460(3) Uani 1 1 d . . . . .
I1 I 0.18764(16) 0.94688(17) 0.44377(7) 0.0569(4) Uani 1 1 d . . . . .
O6 O 0.422(3) 0.788(2) 0.6728(8) 0.079(5) Uani 1 1 d . . . . .
O5 O 0.1657(17) 0.6695(18) 0.5729(8) 0.069(5) Uani 1 1 d . . . . .
O3 O 0.2802(19) 0.982(2) 0.5119(7) 0.062(4) Uani 1 1 d . . . . .
N2 N 0.504(3) 0.665(3) 0.6916(9) 0.066(6) Uani 1 1 d . . . . .
O4 O 0.4128(19) 0.637(2) 0.4977(7) 0.061(4) Uani 1 1 d . . . . .
C9 C 0.529(3) 0.213(3) 0.6017(12) 0.071(7) Uani 1 1 d . . . . .
H9 H 0.534778 0.111547 0.581879 0.085 Uiso 1 1 calc R . . . .
O7 O 0.572(4) 0.672(3) 0.7349(9) 0.119(9) Uani 1 1 d . . . . .
O2 O 0.132(3) 0.933(3) 0.3383(10) 0.103(7) Uani 1 1 d . . . . .
C3 C 0.411(3) 0.992(3) 0.3443(11) 0.064(6) Uani 1 1 d . . . . .
C2 C 0.551(4) 1.017(4) 0.3148(12) 0.081(9) Uani 1 1 d . . . . .
H2 H 0.549544 1.014446 0.277038 0.097 Uiso 1 1 calc R . . . .
C11 C 0.575(4) 0.362(4) 0.6827(13) 0.077(8) Uani 1 1 d . . . . .
H11 H 0.613420 0.366127 0.718295 0.093 Uiso 1 1 calc R . . . .
C1 C 0.693(4) 1.045(4) 0.3426(14) 0.084(9) Uani 1 1 d . . . . .
H1 H 0.790701 1.061055 0.324281 0.100 Uiso 1 1 calc R . . . .
C4 C 0.407(3) 0.993(3) 0.4002(11) 0.063(7) Uani 1 1 d . . . . .
C8 C 0.472(3) 0.356(2) 0.5766(9) 0.052(5) Uani 1 1 d . . . . .
H8 H 0.438435 0.352681 0.540481 0.063 Uiso 1 1 calc R . . . .
C12 C 0.514(3) 0.510(3) 0.6576(9) 0.050(5) Uani 1 1 d . . . . .
N1 N 0.257(3) 0.950(4) 0.3109(12) 0.090(7) Uani 1 1 d . . . . .
C10 C 0.578(4) 0.211(4) 0.6538(14) 0.082(8) Uani 1 1 d . . . . .
H10 H 0.613047 0.109039 0.669941 0.099 Uiso 1 1 calc R . . . .
C7 C 0.463(2) 0.511(3) 0.6066(10) 0.052(5) Uani 1 1 d . . . . .
O1 O 0.264(4) 0.945(5) 0.2631(8) 0.139(12) Uani 1 1 d . . . . .
C5 C 0.549(3) 1.021(3) 0.4279(11) 0.071(8) Uani 1 1 d . . . . .
H5 H 0.552460 1.020600 0.465650 0.085 Uiso 1 1 calc R . . . .
C6 C 0.686(4) 1.051(4) 0.3973(16) 0.089(9) Uani 1 1 d . . . . .
H6 H 0.782345 1.075666 0.415747 0.107 Uiso 1 1 calc R . . . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
I2 O5 1.788(14) . ?
I2 O3 2.445(16) . ?
I2 O4 1.774(16) . ?
I2 C7 2.15(2) . ?
I1 O3 1.860(18) . ?
I1 C4 2.12(2) . ?
O6 N2 1.26(3) . ?
N2 O7 1.20(3) . ?
N2 C12 1.47(3) . ?
C9 H9 0.9300 . ?
C9 C8 1.36(3) . ?
C9 C10 1.34(4) . ?
O2 N1 1.24(3) . ?
C3 C2 1.38(4) . ?
C3 C4 1.38(4) . ?
C3 N1 1.54(4) . ?
C2 H2 0.9300 . ?
C2 C1 1.37(4) . ?
C11 H11 0.9300 . ?
C11 C12 1.40(3) . ?
C11 C10 1.38(4) . ?
C1 H1 0.9300 . ?
C1 C6 1.35(5) . ?
C4 C5 1.37(4) . ?
C8 H8 0.9300 . ?
C8 C7 1.41(3) . ?
C12 C7 1.32(3) . ?
N1 O1 1.18(3) . ?
C10 H10 0.9300 . ?
C5 H5 0.9300 . ?
C5 C6 1.37(4) . ?
C6 H6 0.9300 . ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
O5 I2 O3 89.0(6) . . ?
O5 I2 C7 92.6(7) . . ?
O4 I2 O5 101.4(8) . . ?
O4 I2 O3 85.9(7) . . ?
O4 I2 C7 94.2(8) . . ?
C7 I2 O3 178.3(7) . . ?
O3 I1 C4 94.9(10) . . ?
I1 O3 I2 117.9(8) . . ?
O6 N2 C12 116(2) . . ?
O7 N2 O6 123(2) . . ?
O7 N2 C12 121(2) . . ?
C8 C9 H9 118.3 . . ?
C10 C9 H9 118.3 . . ?
C10 C9 C8 123(3) . . ?
C2 C3 C4 123(3) . . ?
C2 C3 N1 116(3) . . ?
C4 C3 N1 121(2) . . ?
C3 C2 H2 121.0 . . ?
C1 C2 C3 118(3) . . ?
C1 C2 H2 121.0 . . ?
C12 C11 H11 120.7 . . ?
C10 C11 H11 120.7 . . ?
C10 C11 C12 119(3) . . ?
C2 C1 H1 120.9 . . ?
C6 C1 C2 118(3) . . ?
C6 C1 H1 120.9 . . ?
C3 C4 I1 122(2) . . ?
C5 C4 I1 120(2) . . ?
C5 C4 C3 119(2) . . ?
C9 C8 H8 120.8 . . ?
C9 C8 C7 118(2) . . ?
C7 C8 H8 120.8 . . ?
C11 C12 N2 116(2) . . ?
C7 C12 N2 121.0(19) . . ?
C7 C12 C11 123(2) . . ?
O2 N1 C3 114(3) . . ?
O1 N1 O2 125(3) . . ?
O1 N1 C3 120(3) . . ?
C9 C10 C11 118(3) . . ?
C9 C10 H10 120.8 . . ?
C11 C10 H10 120.8 . . ?
C8 C7 I2 115.1(17) . . ?
C12 C7 I2 126.5(15) . . ?
C12 C7 C8 118(2) . . ?
C4 C5 H5 121.5 . . ?
C4 C5 C6 117(3) . . ?
C6 C5 H5 121.5 . . ?
C1 C6 C5 125(3) . . ?
C1 C6 H6 117.5 . . ?
C5 C6 H6 117.5 . . ?

_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 2.033
_oxdiff_exptl_absorpt_empirical_full_min 0.506
