# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2018

####################################################################### 
# 
# 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_ljh053_0m
_database_code_depnum_ccdc_archive 'CCDC 1875958'
_audit_update_record             
;
2018-10-29 deposited with the CCDC.
2018-12-14 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C27 H18 O2'
_chemical_formula_weight         374.41

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'

_symmetry_cell_setting           Monoclinic
_symmetry_space_group_name_H-M   P2(1)/c

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'

_cell_length_a                   12.883(2)
_cell_length_b                   10.655(2)
_cell_length_c                   13.918(3)
_cell_angle_alpha                90.00
_cell_angle_beta                 93.427(3)
_cell_angle_gamma                90.00
_cell_volume                     1907.1(6)
_cell_formula_units_Z            4
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    3339
_cell_measurement_theta_min      2.41
_cell_measurement_theta_max      26.62

_exptl_crystal_description       lump
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.20
_exptl_crystal_density_meas      1.304
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             784
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9816
_exptl_absorpt_correction_T_max  0.9840
_exptl_absorpt_process_details   SADDAB

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      296(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            10897
_diffrn_reflns_av_R_equivalents  0.0258
_diffrn_reflns_av_sigmaI/netI    0.0367
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_theta_min         1.58
_diffrn_reflns_theta_max         27.27
_reflns_number_total             4242
_reflns_number_gt                2979
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker APEX2'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
; 
 Refinement of F² against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F², conventional R-factors R are based 
 on F, with F set to zero for negative F². The threshold expression of 
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F² are statistically about twice as large as those based on F, and R- 
 factors based on ALL data will be even larger. 
;

_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'calc w=1/[σ²(Fo²)+(0.0437P)²+0.3077P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     SHELXL
_refine_ls_extinction_coef       0.0062(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_number_reflns         4242
_refine_ls_number_parameters     263
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0662
_refine_ls_R_factor_gt           0.0421
_refine_ls_wR_factor_ref         0.1122
_refine_ls_wR_factor_gt          0.1004
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_restrained_S_all      1.026
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000

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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
O2 O 0.11361(10) -0.06905(11) 0.07819(11) 0.0752(4) Uani 1 1 d . . .
O1 O 0.42947(9) 0.22702(12) 0.19500(10) 0.0725(4) Uani 1 1 d . . .
C24 C 0.34641(16) 0.60660(16) -0.16093(12) 0.0617(5) Uani 1 1 d . . .
H24 H 0.3852 0.6683 -0.1895 0.074 Uiso 1 1 calc R . .
C23 C 0.24155(16) 0.60641(15) -0.17317(12) 0.0604(5) Uani 1 1 d . . .
H23 H 0.2089 0.6685 -0.2110 0.073 Uiso 1 1 calc R . .
C22 C 0.18008(13) 0.51493(14) -0.13031(11) 0.0493(4) Uani 1 1 d . . .
C27 C 0.23020(11) 0.42028(13) -0.07209(10) 0.0401(3) Uani 1 1 d . . .
C18 C 0.16839(11) 0.32772(13) -0.02873(10) 0.0395(3) Uani 1 1 d . . .
C3 C 0.22206(10) 0.22211(13) 0.02409(10) 0.0379(3) Uani 1 1 d . . .
H3 H 0.2709 0.1765 -0.0145 0.045 Uiso 1 1 calc R . .
C2 C 0.25558(10) 0.22652(13) 0.13191(10) 0.0379(3) Uani 1 1 d . . .
C1 C 0.35984(11) 0.16845(14) 0.15390(11) 0.0432(3) Uani 1 1 d . . .
C11 C 0.37722(12) 0.03719(14) 0.12205(10) 0.0438(4) Uani 1 1 d . . .
C10 C 0.47793(13) -0.01008(16) 0.13040(11) 0.0547(4) Uani 1 1 d . . .
H10 H 0.5326 0.0415 0.1521 0.066 Uiso 1 1 calc R . .
C9 C 0.49699(16) -0.13276(19) 0.10666(13) 0.0664(5) Uani 1 1 d . . .
H11 H 0.5643 -0.1643 0.1136 0.080 Uiso 1 1 calc R . .
C21 C 0.07132(15) 0.51322(18) -0.14426(13) 0.0650(5) Uani 1 1 d . . .
H21 H 0.0382 0.5741 -0.1829 0.078 Uiso 1 1 calc R . .
C20 C 0.01423(13) 0.42512(19) -0.10266(14) 0.0651(5) Uani 1 1 d . . .
H20 H -0.0578 0.4262 -0.1125 0.078 Uiso 1 1 calc R . .
C19 C 0.06272(12) 0.33081(16) -0.04409(11) 0.0515(4) Uani 1 1 d . . .
H19 H 0.0223 0.2704 -0.0158 0.062 Uiso 1 1 calc R . .
C4 C 0.16872(11) 0.13974(14) 0.09407(11) 0.0424(3) Uani 1 1 d . . .
H4 H 0.0982 0.1652 0.1083 0.051 Uiso 1 1 calc R . .
C5 C 0.18607(12) 0.00343(15) 0.08681(11) 0.0490(4) Uani 1 1 d . . .
C6 C 0.29563(12) -0.04100(14) 0.08952(11) 0.0463(4) Uani 1 1 d . . .
C8 C 0.41730(18) -0.20864(18) 0.07289(14) 0.0726(6) Uani 1 1 d . . .
H8 H 0.4312 -0.2910 0.0556 0.087 Uiso 1 1 calc R . .
C7 C 0.31680(16) -0.16439(16) 0.06427(13) 0.0629(5) Uani 1 1 d . . .
H7 H 0.2631 -0.2169 0.0416 0.076 Uiso 1 1 calc R . .
C12 C 0.22999(11) 0.33795(13) 0.19177(10) 0.0393(3) Uani 1 1 d . . .
C17 C 0.15688(12) 0.32912(14) 0.26023(10) 0.0448(4) Uani 1 1 d . . .
H17 H 0.1206 0.2545 0.2671 0.054 Uiso 1 1 calc R . .
C16 C 0.13718(13) 0.43065(16) 0.31886(11) 0.0533(4) Uani 1 1 d . . .
H16 H 0.0875 0.4239 0.3644 0.064 Uiso 1 1 calc R . .
C15 C 0.19053(14) 0.54041(16) 0.31000(12) 0.0574(4) Uani 1 1 d . . .
H15 H 0.1776 0.6080 0.3498 0.069 Uiso 1 1 calc R . .
C14 C 0.26348(14) 0.55078(15) 0.24207(13) 0.0586(4) Uani 1 1 d . . .
H14 H 0.2996 0.6256 0.2357 0.070 Uiso 1 1 calc R . .
C13 C 0.28300(13) 0.45030(15) 0.18344(12) 0.0515(4) Uani 1 1 d . . .
H13 H 0.3324 0.4580 0.1377 0.062 Uiso 1 1 calc R . .
C26 C 0.33982(12) 0.42301(14) -0.06149(11) 0.0449(4) Uani 1 1 d . . .
H26 H 0.3746 0.3621 -0.0241 0.054 Uiso 1 1 calc R . .
C25 C 0.39574(13) 0.51297(16) -0.10479(12) 0.0545(4) Uani 1 1 d . . .
H25 H 0.4679 0.5121 -0.0969 0.065 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
O2 C5 1.2120(18) . ?
O1 C1 1.2082(17) . ?
C24 C23 1.351(3) . ?
C24 C25 1.397(2) . ?
C24 H24 0.9300 . ?
C23 C22 1.411(2) . ?
C23 H23 0.9300 . ?
C22 C21 1.403(2) . ?
C22 C27 1.424(2) . ?
C27 C26 1.411(2) . ?
C27 C18 1.424(2) . ?
C18 C19 1.366(2) . ?
C18 C3 1.4913(19) . ?
C3 C4 1.507(2) . ?
C3 C2 1.5373(19) . ?
C3 H3 0.9800 . ?
C2 C1 1.494(2) . ?
C2 C12 1.4985(19) . ?
C2 C4 1.5213(19) . ?
C1 C11 1.488(2) . ?
C11 C10 1.390(2) . ?
C11 C6 1.395(2) . ?
C10 C9 1.374(2) . ?
C10 H10 0.9300 . ?
C9 C8 1.368(3) . ?
C9 H11 0.9300 . ?
C21 C20 1.345(3) . ?
C21 H21 0.9300 . ?
C20 C19 1.415(2) . ?
C20 H20 0.9300 . ?
C19 H19 0.9300 . ?
C4 C5 1.474(2) . ?
C4 H4 0.9800 . ?
C5 C6 1.487(2) . ?
C6 C7 1.392(2) . ?
C8 C7 1.377(3) . ?
C8 H8 0.9300 . ?
C7 H7 0.9300 . ?
C12 C17 1.382(2) . ?
C12 C13 1.387(2) . ?
C17 C16 1.388(2) . ?
C17 H17 0.9300 . ?
C16 C15 1.366(2) . ?
C16 H16 0.9300 . ?
C15 C14 1.377(2) . ?
C15 H15 0.9300 . ?
C14 C13 1.378(2) . ?
C14 H14 0.9300 . ?
C13 H13 0.9300 . ?
C26 C25 1.361(2) . ?
C26 H26 0.9300 . ?
C25 H25 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
C23 C24 C25 119.18(16) . . ?
C23 C24 H24 120.4 . . ?
C25 C24 H24 120.4 . . ?
C24 C23 C22 122.01(16) . . ?
C24 C23 H23 119.0 . . ?
C22 C23 H23 119.0 . . ?
C21 C22 C23 122.12(16) . . ?
C21 C22 C27 118.99(16) . . ?
C23 C22 C27 118.89(15) . . ?
C26 C27 C22 117.50(14) . . ?
C26 C27 C18 123.45(13) . . ?
C22 C27 C18 119.05(13) . . ?
C19 C18 C27 119.62(14) . . ?
C19 C18 C3 121.59(14) . . ?
C27 C18 C3 118.48(12) . . ?
C18 C3 C4 122.83(12) . . ?
C18 C3 C2 123.58(12) . . ?
C4 C3 C2 59.95(9) . . ?
C18 C3 H3 113.4 . . ?
C4 C3 H3 113.4 . . ?
C2 C3 H3 113.4 . . ?
C1 C2 C12 116.06(11) . . ?
C1 C2 C4 116.94(12) . . ?
C12 C2 C4 119.49(12) . . ?
C1 C2 C3 112.59(11) . . ?
C12 C2 C3 120.57(11) . . ?
C4 C2 C3 59.04(9) . . ?
O1 C1 C11 120.39(14) . . ?
O1 C1 C2 121.07(14) . . ?
C11 C1 C2 118.53(12) . . ?
C10 C11 C6 119.47(15) . . ?
C10 C11 C1 118.15(14) . . ?
C6 C11 C1 122.28(13) . . ?
C9 C10 C11 120.25(17) . . ?
C9 C10 H10 119.9 . . ?
C11 C10 H10 119.9 . . ?
C8 C9 C10 120.25(17) . . ?
C8 C9 H11 119.9 . . ?
C10 C9 H11 119.9 . . ?
C20 C21 C22 121.12(16) . . ?
C20 C21 H21 119.4 . . ?
C22 C21 H21 119.4 . . ?
C21 C20 C19 120.64(16) . . ?
C21 C20 H20 119.7 . . ?
C19 C20 H20 119.7 . . ?
C18 C19 C20 120.57(16) . . ?
C18 C19 H19 119.7 . . ?
C20 C19 H19 119.7 . . ?
C5 C4 C3 116.92(13) . . ?
C5 C4 C2 120.75(13) . . ?
C3 C4 C2 61.01(9) . . ?
C5 C4 H4 115.7 . . ?
C3 C4 H4 115.7 . . ?
C2 C4 H4 115.7 . . ?
O2 C5 C4 121.04(15) . . ?
O2 C5 C6 121.60(15) . . ?
C4 C5 C6 117.36(13) . . ?
C7 C6 C11 119.39(15) . . ?
C7 C6 C5 119.62(15) . . ?
C11 C6 C5 120.90(13) . . ?
C9 C8 C7 120.68(17) . . ?
C9 C8 H8 119.7 . . ?
C7 C8 H8 119.7 . . ?
C8 C7 C6 119.93(18) . . ?
C8 C7 H7 120.0 . . ?
C6 C7 H7 120.0 . . ?
C17 C12 C13 118.40(14) . . ?
C17 C12 C2 120.73(13) . . ?
C13 C12 C2 120.78(13) . . ?
C12 C17 C16 120.56(15) . . ?
C12 C17 H17 119.7 . . ?
C16 C17 H17 119.7 . . ?
C15 C16 C17 120.24(15) . . ?
C15 C16 H16 119.9 . . ?
C17 C16 H16 119.9 . . ?
C16 C15 C14 119.91(15) . . ?
C16 C15 H15 120.0 . . ?
C14 C15 H15 120.0 . . ?
C15 C14 C13 120.02(16) . . ?
C15 C14 H14 120.0 . . ?
C13 C14 H14 120.0 . . ?
C14 C13 C12 120.86(15) . . ?
C14 C13 H13 119.6 . . ?
C12 C13 H13 119.6 . . ?
C25 C26 C27 121.40(14) . . ?
C25 C26 H26 119.3 . . ?
C27 C26 H26 119.3 . . ?
C26 C25 C24 121.03(16) . . ?
C26 C25 H25 119.5 . . ?
C24 C25 H25 119.5 . . ?

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
C25 C24 C23 C22 0.5(3) . . . . ?
C24 C23 C22 C21 -178.86(16) . . . . ?
C24 C23 C22 C27 0.3(2) . . . . ?
C21 C22 C27 C26 178.49(14) . . . . ?
C23 C22 C27 C26 -0.7(2) . . . . ?
C21 C22 C27 C18 -0.8(2) . . . . ?
C23 C22 C27 C18 -179.97(13) . . . . ?
C26 C27 C18 C19 -178.89(14) . . . . ?
C22 C27 C18 C19 0.4(2) . . . . ?
C26 C27 C18 C3 -5.1(2) . . . . ?
C22 C27 C18 C3 174.14(12) . . . . ?
C19 C18 C3 C4 -23.3(2) . . . . ?
C27 C18 C3 C4 163.10(12) . . . . ?
C19 C18 C3 C2 -96.60(17) . . . . ?
C27 C18 C3 C2 89.78(16) . . . . ?
C18 C3 C2 C1 -139.60(13) . . . . ?
C4 C3 C2 C1 108.82(13) . . . . ?
C18 C3 C2 C12 3.37(19) . . . . ?
C4 C3 C2 C12 -108.20(14) . . . . ?
C18 C3 C2 C4 111.58(15) . . . . ?
C12 C2 C1 O1 -21.2(2) . . . . ?
C4 C2 C1 O1 -170.89(15) . . . . ?
C3 C2 C1 O1 123.54(16) . . . . ?
C12 C2 C1 C11 160.18(13) . . . . ?
C4 C2 C1 C11 10.50(19) . . . . ?
C3 C2 C1 C11 -55.07(17) . . . . ?
O1 C1 C11 C10 -7.6(2) . . . . ?
C2 C1 C11 C10 171.02(13) . . . . ?
O1 C1 C11 C6 168.77(16) . . . . ?
C2 C1 C11 C6 -12.6(2) . . . . ?
C6 C11 C10 C9 0.1(2) . . . . ?
C1 C11 C10 C9 176.60(15) . . . . ?
C11 C10 C9 C8 1.2(3) . . . . ?
C23 C22 C21 C20 -179.98(17) . . . . ?
C27 C22 C21 C20 0.9(3) . . . . ?
C22 C21 C20 C19 -0.5(3) . . . . ?
C27 C18 C19 C20 0.0(2) . . . . ?
C3 C18 C19 C20 -173.55(14) . . . . ?
C21 C20 C19 C18 0.1(3) . . . . ?
C18 C3 C4 C5 135.25(14) . . . . ?
C2 C3 C4 C5 -111.97(14) . . . . ?
C18 C3 C4 C2 -112.78(14) . . . . ?
C1 C2 C4 C5 4.4(2) . . . . ?
C12 C2 C4 C5 -144.17(14) . . . . ?
C3 C2 C4 C5 105.82(15) . . . . ?
C1 C2 C4 C3 -101.39(13) . . . . ?
C12 C2 C4 C3 110.00(14) . . . . ?
C3 C4 C5 O2 -126.26(16) . . . . ?
C2 C4 C5 O2 163.03(15) . . . . ?
C3 C4 C5 C6 53.14(18) . . . . ?
C2 C4 C5 C6 -17.6(2) . . . . ?
C10 C11 C6 C7 -1.2(2) . . . . ?
C1 C11 C6 C7 -177.54(14) . . . . ?
C10 C11 C6 C5 175.28(13) . . . . ?
C1 C11 C6 C5 -1.1(2) . . . . ?
O2 C5 C6 C7 11.9(2) . . . . ?
C4 C5 C6 C7 -167.45(15) . . . . ?
O2 C5 C6 C11 -164.52(16) . . . . ?
C4 C5 C6 C11 16.1(2) . . . . ?
C10 C9 C8 C7 -1.5(3) . . . . ?
C9 C8 C7 C6 0.4(3) . . . . ?
C11 C6 C7 C8 1.0(3) . . . . ?
C5 C6 C7 C8 -175.56(16) . . . . ?
C1 C2 C12 C17 -108.69(15) . . . . ?
C4 C2 C12 C17 40.18(19) . . . . ?
C3 C2 C12 C17 109.55(15) . . . . ?
C1 C2 C12 C13 67.81(18) . . . . ?
C4 C2 C12 C13 -143.32(14) . . . . ?
C3 C2 C12 C13 -73.96(17) . . . . ?
C13 C12 C17 C16 0.2(2) . . . . ?
C2 C12 C17 C16 176.73(13) . . . . ?
C12 C17 C16 C15 -0.5(2) . . . . ?
C17 C16 C15 C14 0.6(2) . . . . ?
C16 C15 C14 C13 -0.3(3) . . . . ?
C15 C14 C13 C12 0.0(3) . . . . ?
C17 C12 C13 C14 0.1(2) . . . . ?
C2 C12 C13 C14 -176.47(14) . . . . ?
C22 C27 C26 C25 0.3(2) . . . . ?
C18 C27 C26 C25 179.60(14) . . . . ?
C27 C26 C25 C24 0.4(2) . . . . ?
C23 C24 C25 C26 -0.9(3) . . . . ?

_diffrn_measured_fraction_theta_max 0.990
_diffrn_reflns_theta_full        27.27
_diffrn_measured_fraction_theta_full 0.990
_refine_diff_density_max         0.158
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.031
