# Electronic Supplementary Material (ESI) for ChemComm.
# 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_dcc-181-8
_database_code_depnum_ccdc_archive 'CCDC 1944304'
_audit_update_record             
;
2019-07-31 deposited with the CCDC.	2020-01-10 downloaded from the CCDC.
;
_audit_creation_date             2019-06-07
_audit_creation_method           
;
Olex2 1.2-alpha
(compiled 2018.07.26 svn.r3523 for OlexSys, GUI svn.r5532)
;
_shelx_SHELXL_version_number     2014/7
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         'C15 H10 O2 Se'
_chemical_formula_sum            'C15 H10 O2 Se'
_chemical_formula_weight         301.19
_chemical_melting_point          ?
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 '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'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Se Se -0.0929 2.2259 '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      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 1 21/c 1'
_space_group_name_Hall           '-P 2ybc'
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'

_cell_length_a                   14.7843(10)
_cell_length_b                   6.4537(5)
_cell_length_c                   13.8723(11)
_cell_angle_alpha                90
_cell_angle_beta                 108.104(8)
_cell_angle_gamma                90
_cell_volume                     1258.09(17)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    1275
_cell_measurement_temperature    293(2)
_cell_measurement_theta_min      4.2250
_cell_measurement_theta_max      24.6830
_shelx_estimated_absorpt_T_max   ?
_shelx_estimated_absorpt_T_min   ?
_exptl_absorpt_coefficient_mu    2.974
_exptl_absorpt_correction_T_min  0.55031
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
;
CrysAlisPro 1.171.39.46e (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.590
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       block
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.28
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0321
_diffrn_reflns_av_unetI/netI     0.0588
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.863
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            5395
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.863
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         28.999
_diffrn_reflns_theta_min         3.474
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.0892
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.863
_diffrn_measurement_device_type  'SuperNova, Single source at offset/far, Eos'
_diffrn_measurement_method       'ω scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_source                   'micro-focus sealed X-ray tube'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                1526
_reflns_number_total             2878
_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       ?
_computing_data_collection       ?
_computing_data_reduction        ?
_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         0.666
_refine_diff_density_min         -0.585
_refine_diff_density_rms         0.065
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2878
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1220
_refine_ls_R_factor_gt           0.0596
_refine_ls_restrained_S_all      1.052
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0436P)²+0.7927P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1141
_refine_ls_wR_factor_ref         0.1453
_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:
 C8(H8), C10(H10), C13(H13), C5(H5), C3(H3), C12(H12), C1(H1), C11(H11),
 C4(H4), C2(H2)
;
_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
Se1 Se 0.15335(4) 0.35802(10) 0.50499(4) 0.0847(3) Uani 1 1 d . . . . .
O1 O 0.4272(3) 0.1672(5) 0.5535(3) 0.0741(10) Uani 1 1 d . . . . .
O2 O 0.2870(3) 0.0321(7) 0.4799(3) 0.1075(15) Uani 1 1 d . . . . .
C9 C 0.4455(3) 0.5149(8) 0.6188(3) 0.0536(11) Uani 1 1 d . . . . .
C8 C 0.3437(3) 0.5299(8) 0.5907(3) 0.0563(11) Uani 1 1 d . . . . .
H8 H 0.3157 0.6517 0.6033 0.068 Uiso 1 1 calc R . . . .
C6 C 0.1326(3) 0.5523(9) 0.5998(4) 0.0639(13) Uani 1 1 d . . . . .
C7 C 0.2886(3) 0.3687(8) 0.5461(3) 0.0592(12) Uani 1 1 d . . . . .
C14 C 0.4846(4) 0.3303(8) 0.5995(3) 0.0610(13) Uani 1 1 d . . . . .
C10 C 0.5072(3) 0.6749(8) 0.6642(3) 0.0655(13) Uani 1 1 d . . . . .
H10 H 0.4827 0.8011 0.6770 0.079 Uiso 1 1 calc R . . . .
C13 C 0.5814(4) 0.3004(10) 0.6249(4) 0.0793(16) Uani 1 1 d . . . . .
H13 H 0.6062 0.1753 0.6114 0.095 Uiso 1 1 calc R . . . .
C15 C 0.3305(4) 0.1793(9) 0.5234(4) 0.0748(15) Uani 1 1 d . . . . .
C5 C 0.1437(4) 0.4914(10) 0.6981(4) 0.0808(16) Uani 1 1 d . . . . .
H5 H 0.1640 0.3575 0.7185 0.097 Uiso 1 1 calc R . . . .
C3 C 0.0919(4) 0.8213(12) 0.7353(5) 0.0909(19) Uani 1 1 d . . . . .
H3 H 0.0772 0.9115 0.7806 0.109 Uiso 1 1 calc R . . . .
C12 C 0.6406(4) 0.4614(12) 0.6711(4) 0.0854(18) Uani 1 1 d . . . . .
H12 H 0.7062 0.4436 0.6897 0.102 Uiso 1 1 calc R . . . .
C1 C 0.1021(4) 0.7496(11) 0.5714(4) 0.0825(16) Uani 1 1 d . . . . .
H1 H 0.0960 0.7940 0.5059 0.099 Uiso 1 1 calc R . . . .
C11 C 0.6041(4) 0.6477(10) 0.6902(4) 0.0809(17) Uani 1 1 d . . . . .
H11 H 0.6449 0.7551 0.7206 0.097 Uiso 1 1 calc R . . . .
C4 C 0.1252(4) 0.6263(12) 0.7659(5) 0.0900(19) Uani 1 1 d . . . . .
H4 H 0.1352 0.5854 0.8326 0.108 Uiso 1 1 calc R . . . .
C2 C 0.0804(4) 0.8826(10) 0.6378(6) 0.0948(19) Uani 1 1 d . . . . .
H2 H 0.0579 1.0149 0.6167 0.114 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
Se1 C6 1.910(5) . ?
Se1 C7 1.903(5) . ?
O1 C14 1.378(6) . ?
O1 C15 1.361(6) . ?
O2 C15 1.200(6) . ?
C9 C8 1.435(6) . ?
C9 C14 1.386(6) . ?
C9 C10 1.393(6) . ?
C8 H8 0.9300 . ?
C8 C7 1.347(6) . ?
C6 C5 1.378(6) . ?
C6 C1 1.367(8) . ?
C7 C15 1.449(7) . ?
C14 C13 1.376(7) . ?
C10 H10 0.9300 . ?
C10 C11 1.376(7) . ?
C13 H13 0.9300 . ?
C13 C12 1.381(8) . ?
C5 H5 0.9300 . ?
C5 C4 1.370(8) . ?
C3 H3 0.9300 . ?
C3 C4 1.370(8) . ?
C3 C2 1.368(9) . ?
C12 H12 0.9300 . ?
C12 C11 1.377(8) . ?
C1 H1 0.9300 . ?
C1 C2 1.368(8) . ?
C11 H11 0.9300 . ?
C4 H4 0.9300 . ?
C2 H2 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
C7 Se1 C6 98.53(19) . . ?
C15 O1 C14 122.4(4) . . ?
C14 C9 C8 118.1(4) . . ?
C14 C9 C10 118.1(4) . . ?
C10 C9 C8 123.8(5) . . ?
C9 C8 H8 119.8 . . ?
C7 C8 C9 120.4(5) . . ?
C7 C8 H8 119.8 . . ?
C5 C6 Se1 119.9(4) . . ?
C1 C6 Se1 121.5(4) . . ?
C1 C6 C5 118.5(5) . . ?
C8 C7 Se1 126.5(4) . . ?
C8 C7 C15 120.8(5) . . ?
C15 C7 Se1 112.6(4) . . ?
O1 C14 C9 120.8(4) . . ?
C13 C14 O1 116.9(5) . . ?
C13 C14 C9 122.3(5) . . ?
C9 C10 H10 119.8 . . ?
C11 C10 C9 120.4(5) . . ?
C11 C10 H10 119.8 . . ?
C14 C13 H13 120.9 . . ?
C14 C13 C12 118.1(6) . . ?
C12 C13 H13 120.9 . . ?
O1 C15 C7 117.5(5) . . ?
O2 C15 O1 117.2(5) . . ?
O2 C15 C7 125.4(6) . . ?
C6 C5 H5 119.7 . . ?
C4 C5 C6 120.7(6) . . ?
C4 C5 H5 119.7 . . ?
C4 C3 H3 120.2 . . ?
C2 C3 H3 120.2 . . ?
C2 C3 C4 119.6(6) . . ?
C13 C12 H12 119.4 . . ?
C11 C12 C13 121.1(5) . . ?
C11 C12 H12 119.4 . . ?
C6 C1 H1 119.5 . . ?
C6 C1 C2 121.1(5) . . ?
C2 C1 H1 119.5 . . ?
C10 C11 C12 120.0(5) . . ?
C10 C11 H11 120.0 . . ?
C12 C11 H11 120.0 . . ?
C5 C4 H4 120.0 . . ?
C3 C4 C5 120.0(6) . . ?
C3 C4 H4 120.0 . . ?
C3 C2 C1 120.1(6) . . ?
C3 C2 H2 120.0 . . ?
C1 C2 H2 120.0 . . ?

loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
Se1 C6 C5 C4 -177.2(4) . . . . ?
Se1 C6 C1 C2 174.9(4) . . . . ?
Se1 C7 C15 O1 -177.3(4) . . . . ?
Se1 C7 C15 O2 2.9(7) . . . . ?
O1 C14 C13 C12 -180.0(4) . . . . ?
C9 C8 C7 Se1 179.3(3) . . . . ?
C9 C8 C7 C15 -1.5(7) . . . . ?
C9 C14 C13 C12 -0.1(7) . . . . ?
C9 C10 C11 C12 0.1(8) . . . . ?
C8 C9 C14 O1 0.8(6) . . . . ?
C8 C9 C14 C13 -179.1(4) . . . . ?
C8 C9 C10 C11 179.1(4) . . . . ?
C8 C7 C15 O1 3.4(7) . . . . ?
C8 C7 C15 O2 -176.4(6) . . . . ?
C6 C5 C4 C3 2.4(8) . . . . ?
C6 C1 C2 C3 2.0(9) . . . . ?
C14 O1 C15 O2 176.6(5) . . . . ?
C14 O1 C15 C7 -3.2(7) . . . . ?
C14 C9 C8 C7 -0.5(6) . . . . ?
C14 C9 C10 C11 -1.0(7) . . . . ?
C14 C13 C12 C11 -0.8(8) . . . . ?
C10 C9 C8 C7 179.4(4) . . . . ?
C10 C9 C14 O1 -179.2(4) . . . . ?
C10 C9 C14 C13 0.9(7) . . . . ?
C13 C12 C11 C10 0.8(8) . . . . ?
C15 O1 C14 C9 1.2(7) . . . . ?
C15 O1 C14 C13 -178.9(4) . . . . ?
C5 C6 C1 C2 -1.8(8) . . . . ?
C1 C6 C5 C4 -0.4(8) . . . . ?
C4 C3 C2 C1 0.0(9) . . . . ?
C2 C3 C4 C5 -2.2(9) . . . . ?

_olex2_submission_special_instructions 'No special instructions were received'
