# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2019

####################################################################### 
# 
# 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_474
_audit_block_doi                 10.5517/ccdc.csd.cc20nqbr
_database_code_depnum_ccdc_archive 'CCDC 1866954'
_audit_update_record             
;
2018-09-11 deposited with the CCDC.
2019-01-23 downloaded from the CCDC.
;
_audit_creation_date             2018-03-12
_audit_creation_method           
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_shelx_SHELXL_version_number     2017/1
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         '2(C7 H6)'
_chemical_formula_sum            'C14 H12'
_chemical_formula_weight         180.24
_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'

_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                   15.4239(9)
_cell_length_b                   5.6575(2)
_cell_length_c                   12.2794(8)
_cell_angle_alpha                90
_cell_angle_beta                 112.051(7)
_cell_angle_gamma                90
_cell_volume                     993.13(10)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    2721
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      29.0400
_cell_measurement_theta_min      2.8330
_shelx_estimated_absorpt_T_max   0.993
_shelx_estimated_absorpt_T_min   0.991
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.81414
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
;
CrysAlisPro 1.171.38.43f (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       block
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0319
_diffrn_reflns_av_unetI/netI     0.0331
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5987
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        24.998
_diffrn_reflns_theta_max         24.998
_diffrn_reflns_theta_min         2.850
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 5.2684
_diffrn_detector_type            AtlasS2
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_details      
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  tₑₓₚ   ω     θ     κ     φ   Frames
#--------------------------------------------------------------------------
  1  ω    -76.00   9.00   1.00    1.50    --  -11.59 -57.00  60.00   85
  2  ω    -39.00  62.00   1.00    1.50    --  -11.59  57.00-150.00  101
  3  ω    -16.00  74.00   1.00    1.50    --   11.74  57.00   0.00   90
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_measurement_method       'ω scans'
_diffrn_orient_matrix_type       
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0445894000
_diffrn_orient_matrix_UB_12      0.0323932000
_diffrn_orient_matrix_UB_13      0.0005517000
_diffrn_orient_matrix_UB_21      -0.0148249000
_diffrn_orient_matrix_UB_22      -0.0288365000
_diffrn_orient_matrix_UB_23      -0.0604806000
_diffrn_orient_matrix_UB_31      -0.0159019000
_diffrn_orient_matrix_UB_32      0.1176768000
_diffrn_orient_matrix_UB_33      -0.0149386000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                1520
_reflns_number_total             1756
_reflns_odcompleteness_completeness 99.87
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_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 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_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         0.578
_refine_diff_density_min         -0.265
_refine_diff_density_rms         0.039
_refine_ls_extinction_coef       0.071(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2017/1 (Sheldrick 2017)'
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     128
_refine_ls_number_reflns         1756
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0499
_refine_ls_R_factor_gt           0.0427
_refine_ls_restrained_S_all      1.015
_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)+(0.0620P)²+0.3809P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1114
_refine_ls_wR_factor_ref         0.1190
_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:
 C7(H7), C2(H2), C6(H6), C3(H3), C5(H5), C4(H4), C009(H009), C00A(H00A),
 C00B(H00B), C00C(H00C), C00D(H00D), C00E(H00E)
;
_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
C1 C 0.57578(9) 0.3634(2) 0.42072(13) 0.0185(4) Uani 1 1 d . . . . .
C7 C 0.52277(10) 0.4016(3) 0.49660(13) 0.0195(4) Uani 1 1 d . . . . .
H7 H 0.520704 0.276462 0.544668 0.023 Uiso 1 1 calc R . . . .
C2 C 0.57804(10) 0.5271(2) 0.33634(13) 0.0199(4) Uani 1 1 d . . . . .
H2 H 0.543461 0.665916 0.325278 0.024 Uiso 1 1 calc R . . . .
C6 C 0.62727(10) 0.1547(3) 0.43279(13) 0.0212(4) Uani 1 1 d . . . . .
H6 H 0.625693 0.041780 0.487065 0.025 Uiso 1 1 calc R . . . .
C3 C 0.63110(10) 0.4848(3) 0.26930(13) 0.0221(4) Uani 1 1 d . . . . .
H3 H 0.632168 0.595763 0.213934 0.026 Uiso 1 1 calc R . . . .
C5 C 0.68043(10) 0.1126(3) 0.36582(14) 0.0233(4) Uani 1 1 d . . . . .
H5 H 0.714534 -0.026775 0.375868 0.028 Uiso 1 1 calc R . . . .
C4 C 0.68298(10) 0.2775(3) 0.28388(13) 0.0232(4) Uani 1 1 d . . . . .
H4 H 0.718955 0.250297 0.239002 0.028 Uiso 1 1 calc R . . . .
C008 C 0.91747(10) 0.5617(3) 0.83912(13) 0.0244(4) Uani 1 1 d . . . . .
C009 C 0.81558(10) 0.5627(3) 0.59576(14) 0.0256(4) Uani 1 1 d . . . . .
H009 H 0.781495 0.562738 0.515181 0.031 Uiso 1 1 calc R . . . .
C00A C 0.92512(10) 0.3749(3) 0.76847(15) 0.0262(4) Uani 1 1 d . . . . .
H00A H 0.964663 0.248776 0.802669 0.031 Uiso 1 1 calc R . . . .
C00B C 0.87468(10) 0.3751(3) 0.64846(14) 0.0262(4) Uani 1 1 d . . . . .
H00B H 0.880365 0.249285 0.602868 0.031 Uiso 1 1 calc R . . . .
C00C C 0.80805(11) 0.7487(3) 0.66430(15) 0.0272(4) Uani 1 1 d . . . . .
H00C H 0.769057 0.875414 0.629625 0.033 Uiso 1 1 calc R . . . .
C00D C 0.85809(11) 0.7478(3) 0.78419(15) 0.0267(4) Uani 1 1 d . . . . .
H00D H 0.851986 0.874325 0.829151 0.032 Uiso 1 1 calc R . . . .
C00E C 0.96858(10) 0.5764(3) 0.96708(15) 0.0274(4) Uani 1 1 d . . . . .
H00E H 0.955473 0.705434 1.005308 0.033 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
C1 C7 1.468(2) . ?
C1 C2 1.400(2) . ?
C1 C6 1.399(2) . ?
C7 C7 1.336(3) 3_666 ?
C7 H7 0.9300 . ?
C2 H2 0.9300 . ?
C2 C3 1.382(2) . ?
C6 H6 0.9300 . ?
C6 C5 1.383(2) . ?
C3 H3 0.9300 . ?
C3 C4 1.393(2) . ?
C5 H5 0.9300 . ?
C5 C4 1.384(2) . ?
C4 H4 0.9300 . ?
C008 C00A 1.400(2) . ?
C008 C00D 1.393(2) . ?
C008 C00E 1.472(2) . ?
C009 H009 0.9300 . ?
C009 C00B 1.390(2) . ?
C009 C00C 1.379(2) . ?
C00A H00A 0.9300 . ?
C00A C00B 1.384(2) . ?
C00B H00B 0.9300 . ?
C00C H00C 0.9300 . ?
C00C C00D 1.382(2) . ?
C00D H00D 0.9300 . ?
C00E C00E 1.324(3) 3_767 ?
C00E H00E 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
C2 C1 C7 123.14(13) . . ?
C6 C1 C7 119.09(13) . . ?
C6 C1 C2 117.77(14) . . ?
C1 C7 H7 116.8 . . ?
C7 C7 C1 126.43(18) 3_666 . ?
C7 C7 H7 116.8 3_666 . ?
C1 C2 H2 119.6 . . ?
C3 C2 C1 120.72(14) . . ?
C3 C2 H2 119.6 . . ?
C1 C6 H6 119.3 . . ?
C5 C6 C1 121.47(14) . . ?
C5 C6 H6 119.3 . . ?
C2 C3 H3 119.7 . . ?
C2 C3 C4 120.62(14) . . ?
C4 C3 H3 119.7 . . ?
C6 C5 H5 120.0 . . ?
C6 C5 C4 120.10(14) . . ?
C4 C5 H5 120.0 . . ?
C3 C4 H4 120.3 . . ?
C5 C4 C3 119.31(14) . . ?
C5 C4 H4 120.3 . . ?
C00A C008 C00E 124.63(14) . . ?
C00D C008 C00A 117.64(14) . . ?
C00D C008 C00E 117.73(15) . . ?
C00B C009 H009 120.4 . . ?
C00C C009 H009 120.4 . . ?
C00C C009 C00B 119.27(14) . . ?
C008 C00A H00A 119.5 . . ?
C00B C00A C008 120.96(14) . . ?
C00B C00A H00A 119.5 . . ?
C009 C00B H00B 119.8 . . ?
C00A C00B C009 120.31(14) . . ?
C00A C00B H00B 119.8 . . ?
C009 C00C H00C 119.8 . . ?
C009 C00C C00D 120.40(14) . . ?
C00D C00C H00C 119.8 . . ?
C008 C00D H00D 119.3 . . ?
C00C C00D C008 121.42(15) . . ?
C00C C00D H00D 119.3 . . ?
C008 C00E H00E 116.9 . . ?
C00E C00E C008 126.2(2) 3_767 . ?
C00E C00E H00E 116.9 3_767 . ?

_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
- Detector area scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.442
_oxdiff_exptl_absorpt_empirical_full_min 0.729
