# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2015

####################################################################### 
# 
# 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_exp_1136
_database_code_depnum_ccdc_archive 'CCDC 1031051'
_audit_update_record             
;
2014-10-25 deposited with the CCDC.
2015-01-05 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C25 H18 O3'
_chemical_formula_weight         366.39

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'
O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 21/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                   11.12900(10)
_cell_length_b                   10.01500(10)
_cell_length_c                   16.4841(2)
_cell_angle_alpha                90.00
_cell_angle_beta                 94.2110(10)
_cell_angle_gamma                90.00
_cell_volume                     1832.31(3)
_cell_formula_units_Z            4
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    ?
_cell_measurement_theta_min      ?
_cell_measurement_theta_max      ?

_exptl_crystal_description       block
_exptl_crystal_colour            ?
_exptl_crystal_size_max          ?
_exptl_crystal_size_mid          ?
_exptl_crystal_size_min          ?
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.328
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             768
_exptl_absorpt_coefficient_mu    0.692
_exptl_absorpt_correction_type   ?
_exptl_absorpt_correction_T_min  ?
_exptl_absorpt_correction_T_max  ?
_exptl_absorpt_process_details   ?

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     1.54178
_diffrn_radiation_type           CuK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  ?
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            20325
_diffrn_reflns_av_R_equivalents  0.0269
_diffrn_reflns_av_sigmaI/netI    0.0147
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_theta_min         3.98
_diffrn_reflns_theta_max         73.61
_reflns_number_total             3686
_reflns_number_gt                3346
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    ?
_computing_publication_material  ?

_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)+(0.0559P)²+0.4120P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         3686
_refine_ls_number_parameters     254
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0400
_refine_ls_R_factor_gt           0.0366
_refine_ls_wR_factor_ref         0.0995
_refine_ls_wR_factor_gt          0.0960
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_restrained_S_all      1.060
_refine_ls_shift/su_max          0.004
_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
C10 C 0.00173(9) 0.91671(11) 0.32266(7) 0.0245(2) Uani 1 1 d . . .
C9 C 0.08864(9) 0.98722(11) 0.19132(6) 0.0244(2) Uani 1 1 d . . .
C19 C 0.26440(9) 1.08915(11) 0.36293(6) 0.0238(2) Uani 1 1 d . . .
C5 C 0.13835(9) 0.89675(11) 0.13174(7) 0.0262(2) Uani 1 1 d . . .
C13 C 0.40672(9) 0.78587(11) 0.32041(6) 0.0247(2) Uani 1 1 d . . .
C8 C 0.11300(9) 0.92417(10) 0.27559(6) 0.0222(2) Uani 1 1 d . . .
C11 C 0.23338(9) 0.96387(11) 0.32105(6) 0.0226(2) Uani 1 1 d . . .
C4 C 0.14304(11) 0.91873(13) 0.04835(7) 0.0345(3) Uani 1 1 d . . .
H4 H 0.1110 0.9959 0.0240 0.041 Uiso 1 1 calc R . .
C7 C 0.17623(9) 0.78681(10) 0.25973(7) 0.0231(2) Uani 1 1 d . . .
H7 H 0.1408 0.7079 0.2838 0.028 Uiso 1 1 calc R . .
C6 C 0.18610(9) 0.78227(11) 0.16936(7) 0.0255(2) Uani 1 1 d . . .
C20 C 0.36655(10) 1.09982(12) 0.41785(7) 0.0315(3) Uani 1 1 d . . .
H20 H 0.4156 1.0257 0.4283 0.038 Uiso 1 1 calc R . .
C12 C 0.28701(9) 0.84591(10) 0.30704(6) 0.0229(2) Uani 1 1 d . . .
C14 C 0.51123(10) 0.86150(13) 0.31447(7) 0.0313(3) Uani 1 1 d . . .
H14 H 0.5053 0.9527 0.3044 0.038 Uiso 1 1 calc R . .
C24 C 0.19210(11) 1.20152(12) 0.34927(7) 0.0309(3) Uani 1 1 d . . .
H24 H 0.1233 1.1960 0.3138 0.037 Uiso 1 1 calc R . .
C1 C 0.24072(11) 0.68627(13) 0.12353(8) 0.0351(3) Uani 1 1 d . . .
H1 H 0.2737 0.6095 0.1478 0.042 Uiso 1 1 calc R . .
C18 C 0.41799(11) 0.64910(12) 0.33535(7) 0.0321(3) Uani 1 1 d . . .
H18 H 0.3493 0.5967 0.3375 0.039 Uiso 1 1 calc R . .
C22 C 0.32275(12) 1.33074(13) 0.44124(8) 0.0382(3) Uani 1 1 d . . .
H22 H 0.3426 1.4113 0.4669 0.046 Uiso 1 1 calc R . .
C15 C 0.62346(11) 0.80162(15) 0.32346(9) 0.0404(3) Uani 1 1 d . . .
H15 H 0.6925 0.8521 0.3179 0.048 Uiso 1 1 calc R . .
C3 C 0.19662(13) 0.82249(15) 0.00331(8) 0.0424(3) Uani 1 1 d . . .
H3 H 0.2005 0.8343 -0.0524 0.051 Uiso 1 1 calc R . .
C17 C 0.53112(13) 0.59087(13) 0.34696(8) 0.0408(3) Uani 1 1 d . . .
H17 H 0.5381 0.5003 0.3590 0.049 Uiso 1 1 calc R . .
C23 C 0.22127(12) 1.32159(13) 0.38779(8) 0.0374(3) Uani 1 1 d . . .
H23 H 0.1725 1.3961 0.3777 0.045 Uiso 1 1 calc R . .
C21 C 0.39469(12) 1.21937(13) 0.45639(8) 0.0379(3) Uani 1 1 d . . .
H21 H 0.4624 1.2252 0.4928 0.045 Uiso 1 1 calc R . .
C25 C -0.06978(11) 0.86002(14) 0.44927(8) 0.0378(3) Uani 1 1 d . . .
H25A H -0.1210 0.9371 0.4499 0.057 Uiso 1 1 calc R . .
H25B H -0.0397 0.8390 0.5038 0.057 Uiso 1 1 calc R . .
H25C H -0.1150 0.7856 0.4265 0.057 Uiso 1 1 calc R . .
C16 C 0.63305(12) 0.66692(15) 0.34067(8) 0.0428(3) Uani 1 1 d . . .
H16 H 0.7087 0.6274 0.3481 0.051 Uiso 1 1 calc R . .
C2 C 0.24488(13) 0.70793(14) 0.04049(9) 0.0433(3) Uani 1 1 d . . .
H2 H 0.2808 0.6443 0.0091 0.052 Uiso 1 1 calc R . .
O1 O 0.04027(8) 1.09404(8) 0.17665(5) 0.0342(2) Uani 1 1 d . . .
O2 O -0.09927(7) 0.93113(10) 0.29298(6) 0.0380(2) Uani 1 1 d . . .
O3 O 0.03014(7) 0.88766(9) 0.40052(5) 0.0320(2) Uani 1 1 d . . .


_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
C10 O2 1.2012(14) . ?
C10 O3 1.3312(14) . ?
C10 C8 1.5108(14) . ?
C9 O1 1.2140(14) . ?
C9 C5 1.4735(15) . ?
C9 C8 1.5319(14) . ?
C19 C24 1.3921(15) . ?
C19 C20 1.4044(15) . ?
C19 C11 1.4611(14) . ?
C5 C6 1.3904(16) . ?
C5 C4 1.3969(16) . ?
C13 C18 1.3958(16) . ?
C13 C14 1.3975(16) . ?
C13 C12 1.4635(14) . ?
C8 C11 1.5385(13) . ?
C8 C7 1.5758(14) . ?
C11 C12 1.3512(15) . ?
C4 C3 1.3786(19) . ?
C7 C6 1.5025(15) . ?
C7 C12 1.5289(14) . ?
C6 C1 1.3899(16) . ?
C20 C21 1.3806(17) . ?
C14 C15 1.3836(17) . ?
C24 C23 1.3873(17) . ?
C1 C2 1.3901(19) . ?
C18 C17 1.3880(17) . ?
C22 C23 1.3834(18) . ?
C22 C21 1.3849(19) . ?
C15 C16 1.381(2) . ?
C3 C2 1.390(2) . ?
C17 C16 1.377(2) . ?
C25 O3 1.4458(13) . ?

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
O2 C10 O3 124.60(10) . . ?
O2 C10 C8 124.24(10) . . ?
O3 C10 C8 111.12(9) . . ?
O1 C9 C5 126.29(10) . . ?
O1 C9 C8 126.17(10) . . ?
C5 C9 C8 107.51(9) . . ?
C24 C19 C20 118.28(10) . . ?
C24 C19 C11 120.27(10) . . ?
C20 C19 C11 121.46(10) . . ?
C6 C5 C4 121.88(11) . . ?
C6 C5 C9 111.08(10) . . ?
C4 C5 C9 127.01(11) . . ?
C18 C13 C14 118.67(10) . . ?
C18 C13 C12 119.92(10) . . ?
C14 C13 C12 121.33(10) . . ?
C10 C8 C9 112.89(8) . . ?
C10 C8 C11 118.68(9) . . ?
C9 C8 C11 115.15(8) . . ?
C10 C8 C7 115.77(8) . . ?
C9 C8 C7 105.12(8) . . ?
C11 C8 C7 85.58(7) . . ?
C12 C11 C19 137.70(10) . . ?
C12 C11 C8 94.05(8) . . ?
C19 C11 C8 128.25(9) . . ?
C3 C4 C5 117.94(12) . . ?
C6 C7 C12 113.73(8) . . ?
C6 C7 C8 104.89(8) . . ?
C12 C7 C8 86.02(7) . . ?
C1 C6 C5 119.74(11) . . ?
C1 C6 C7 128.80(11) . . ?
C5 C6 C7 111.34(9) . . ?
C21 C20 C19 120.54(11) . . ?
C11 C12 C13 137.92(10) . . ?
C11 C12 C7 94.35(8) . . ?
C13 C12 C7 127.51(9) . . ?
C15 C14 C13 120.46(12) . . ?
C23 C24 C19 120.91(11) . . ?
C6 C1 C2 118.35(12) . . ?
C17 C18 C13 120.36(12) . . ?
C23 C22 C21 119.71(11) . . ?
C16 C15 C14 120.06(12) . . ?
C4 C3 C2 120.54(12) . . ?
C16 C17 C18 120.09(12) . . ?
C22 C23 C24 120.10(12) . . ?
C20 C21 C22 120.46(11) . . ?
C17 C16 C15 120.29(11) . . ?
C1 C2 C3 121.54(12) . . ?
C10 O3 C25 116.09(9) . . ?

_diffrn_measured_fraction_theta_max 0.994
_diffrn_reflns_theta_full        73.61
_diffrn_measured_fraction_theta_full 0.994
_refine_diff_density_max         0.246
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.048
