# 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_z
_audit_block_doi                 10.5517/cc13s1b8
_database_code_depnum_ccdc_archive 'CCDC 1035999'
_audit_update_record             
;
2014-11-26 deposited with the CCDC.
2015-08-11 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
'2,3-diphenyl-2,5-dihydrofuran-2-carboxylic acid'
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C17 H14 O4'
_chemical_formula_weight         282.28

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           Orthorhombic
_symmetry_space_group_name_H-M   P2(1)2(1)2(1)

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

_cell_length_a                   6.7978(7)
_cell_length_b                   7.3605(7)
_cell_length_c                   29.386(3)
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_volume                     1470.3(3)
_cell_formula_units_Z            4
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    ?
_cell_measurement_theta_min      ?
_cell_measurement_theta_max      ?

_exptl_crystal_description       block
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.275
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             592
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9663
_exptl_absorpt_correction_T_max  0.9803
_exptl_absorpt_process_details   ?

_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  ?
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            20114
_diffrn_reflns_av_R_equivalents  0.0346
_diffrn_reflns_av_sigmaI/netI    0.0243
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_theta_min         2.77
_diffrn_reflns_theta_max         28.71
_reflns_number_total             3711
_reflns_number_gt                2749
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_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)+(0.0816P)²+0.2515P] 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     none
_refine_ls_extinction_coef       ?
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.3(17)
_chemical_absolute_configuration .
_refine_ls_number_reflns         3711
_refine_ls_number_parameters     190
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0742
_refine_ls_R_factor_gt           0.0541
_refine_ls_wR_factor_ref         0.1607
_refine_ls_wR_factor_gt          0.1486
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_restrained_S_all      1.044
_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
O3 O 1.0264(3) 0.1226(3) 0.06188(6) 0.0755(5) Uani 1 1 d . . .
O2 O 0.5253(3) 0.0213(3) 0.07712(6) 0.0716(5) Uani 1 1 d . . .
H2B H 0.4519 -0.0482 0.0634 0.107 Uiso 1 1 calc R . .
C1 C 0.9183(3) 0.0131(3) 0.13431(7) 0.0470(4) Uani 1 1 d . . .
C2 C 1.0895(4) 0.0690(3) 0.15557(9) 0.0597(6) Uani 1 1 d . . .
H2A H 1.1687 0.1560 0.1417 0.072 Uiso 1 1 calc R . .
C3 C 1.1436(4) -0.0021(4) 0.19666(9) 0.0697(7) Uani 1 1 d . . .
H3A H 1.2578 0.0383 0.2109 0.084 Uiso 1 1 calc R . .
C4 C 1.0302(4) -0.1327(4) 0.21701(9) 0.0699(7) Uani 1 1 d . . .
H4A H 1.0665 -0.1801 0.2451 0.084 Uiso 1 1 calc R . .
C5 C 0.8643(4) -0.1929(4) 0.19597(9) 0.0701(7) Uani 1 1 d . . .
H5A H 0.7884 -0.2828 0.2096 0.084 Uiso 1 1 calc R . .
C6 C 0.8074(4) -0.1213(3) 0.15437(8) 0.0574(5) Uani 1 1 d . . .
H6A H 0.6946 -0.1641 0.1400 0.069 Uiso 1 1 calc R . .
C7 C 0.6320(3) 0.3674(3) 0.12737(8) 0.0526(5) Uani 1 1 d . . .
C8 C 0.6268(4) 0.3162(3) 0.17280(8) 0.0603(6) Uani 1 1 d . . .
H8A H 0.7197 0.2344 0.1838 0.072 Uiso 1 1 calc R . .
C9 C 0.4864(4) 0.3844(4) 0.20182(10) 0.0740(7) Uani 1 1 d . . .
H9A H 0.4867 0.3490 0.2322 0.089 Uiso 1 1 calc R . .
C10 C 0.3472(4) 0.5030(5) 0.18682(12) 0.0816(8) Uani 1 1 d . . .
H10A H 0.2523 0.5480 0.2066 0.098 Uiso 1 1 calc R . .
C11 C 0.3490(4) 0.5546(4) 0.14230(14) 0.0845(9) Uani 1 1 d . . .
H11A H 0.2544 0.6357 0.1318 0.101 Uiso 1 1 calc R . .
C12 C 0.4899(4) 0.4880(3) 0.11230(10) 0.0676(6) Uani 1 1 d . . .
H12A H 0.4888 0.5247 0.0820 0.081 Uiso 1 1 calc R . .
C13 C 0.8557(3) 0.1078(3) 0.09033(7) 0.0513(5) Uani 1 1 d . . .
C14 C 0.7878(3) 0.3039(3) 0.09585(8) 0.0523(5) Uani 1 1 d . . .
C15 C 0.8911(4) 0.4064(4) 0.06766(9) 0.0716(7) Uani 1 1 d . . .
H15A H 0.8745 0.5312 0.0646 0.086 Uiso 1 1 calc R . .
C16 C 1.0357(5) 0.2992(4) 0.04176(10) 0.0824(8) Uani 1 1 d . . .
H16A H 1.0008 0.2945 0.0098 0.099 Uiso 1 1 calc R . .
H16B H 1.1665 0.3505 0.0447 0.099 Uiso 1 1 calc R . .
C17 C 0.7055(4) -0.0080(3) 0.06473(7) 0.0590(5) Uani 1 1 d . . .
O1 O 0.7552(4) -0.1150(3) 0.03640(7) 0.0976(7) Uani 1 1 d . . .
O1W O 0.2516(3) 0.8251(3) 0.04042(7) 0.0846(6) 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
O3 C16 1.429(3) . ?
O3 C13 1.434(3) . ?
O2 C17 1.296(3) . ?
O2 H2B 0.8200 . ?
C1 C6 1.377(3) . ?
C1 C2 1.384(3) . ?
C1 C13 1.529(3) . ?
C2 C3 1.366(4) . ?
C2 H2A 0.9300 . ?
C3 C4 1.369(4) . ?
C3 H3A 0.9300 . ?
C4 C5 1.360(4) . ?
C4 H4A 0.9300 . ?
C5 C6 1.386(3) . ?
C5 H5A 0.9300 . ?
C6 H6A 0.9300 . ?
C7 C12 1.385(3) . ?
C7 C8 1.388(3) . ?
C7 C14 1.483(3) . ?
C8 C9 1.375(3) . ?
C8 H8A 0.9300 . ?
C9 C10 1.361(4) . ?
C9 H9A 0.9300 . ?
C10 C11 1.362(5) . ?
C10 H10A 0.9300 . ?
C11 C12 1.391(4) . ?
C11 H11A 0.9300 . ?
C12 H12A 0.9300 . ?
C13 C14 1.524(3) . ?
C13 C17 1.528(3) . ?
C14 C15 1.322(3) . ?
C15 C16 1.472(4) . ?
C15 H15A 0.9300 . ?
C16 H16A 0.9700 . ?
C16 H16B 0.9700 . ?
C17 O1 1.195(3) . ?

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
C16 O3 C13 110.3(2) . . ?
C17 O2 H2B 109.5 . . ?
C6 C1 C2 118.8(2) . . ?
C6 C1 C13 122.50(19) . . ?
C2 C1 C13 118.7(2) . . ?
C3 C2 C1 120.7(2) . . ?
C3 C2 H2A 119.6 . . ?
C1 C2 H2A 119.6 . . ?
C2 C3 C4 120.2(2) . . ?
C2 C3 H3A 119.9 . . ?
C4 C3 H3A 119.9 . . ?
C5 C4 C3 119.8(2) . . ?
C5 C4 H4A 120.1 . . ?
C3 C4 H4A 120.1 . . ?
C4 C5 C6 120.5(3) . . ?
C4 C5 H5A 119.7 . . ?
C6 C5 H5A 119.7 . . ?
C1 C6 C5 119.9(2) . . ?
C1 C6 H6A 120.1 . . ?
C5 C6 H6A 120.1 . . ?
C12 C7 C8 117.7(2) . . ?
C12 C7 C14 120.0(2) . . ?
C8 C7 C14 122.2(2) . . ?
C9 C8 C7 121.0(2) . . ?
C9 C8 H8A 119.5 . . ?
C7 C8 H8A 119.5 . . ?
C10 C9 C8 121.1(3) . . ?
C10 C9 H9A 119.5 . . ?
C8 C9 H9A 119.5 . . ?
C9 C10 C11 118.9(3) . . ?
C9 C10 H10A 120.5 . . ?
C11 C10 H10A 120.5 . . ?
C10 C11 C12 121.1(3) . . ?
C10 C11 H11A 119.4 . . ?
C12 C11 H11A 119.4 . . ?
C7 C12 C11 120.2(3) . . ?
C7 C12 H12A 119.9 . . ?
C11 C12 H12A 119.9 . . ?
O3 C13 C14 103.60(18) . . ?
O3 C13 C17 107.22(18) . . ?
C14 C13 C17 112.22(18) . . ?
O3 C13 C1 107.60(17) . . ?
C14 C13 C1 115.22(18) . . ?
C17 C13 C1 110.35(19) . . ?
C15 C14 C7 126.2(2) . . ?
C15 C14 C13 108.2(2) . . ?
C7 C14 C13 125.57(19) . . ?
C14 C15 C16 111.9(2) . . ?
C14 C15 H15A 124.1 . . ?
C16 C15 H15A 124.1 . . ?
O3 C16 C15 104.1(2) . . ?
O3 C16 H16A 110.9 . . ?
C15 C16 H16A 110.9 . . ?
O3 C16 H16B 110.9 . . ?
C15 C16 H16B 110.9 . . ?
H16A C16 H16B 109.0 . . ?
O1 C17 O2 125.0(3) . . ?
O1 C17 C13 121.4(2) . . ?
O2 C17 C13 113.60(18) . . ?

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
C6 C1 C2 C3 -2.7(3) . . . . ?
C13 C1 C2 C3 175.1(2) . . . . ?
C1 C2 C3 C4 1.2(4) . . . . ?
C2 C3 C4 C5 0.7(4) . . . . ?
C3 C4 C5 C6 -0.9(4) . . . . ?
C2 C1 C6 C5 2.5(3) . . . . ?
C13 C1 C6 C5 -175.3(2) . . . . ?
C4 C5 C6 C1 -0.7(4) . . . . ?
C12 C7 C8 C9 -0.6(3) . . . . ?
C14 C7 C8 C9 176.7(2) . . . . ?
C7 C8 C9 C10 0.6(4) . . . . ?
C8 C9 C10 C11 -0.4(4) . . . . ?
C9 C10 C11 C12 0.1(5) . . . . ?
C8 C7 C12 C11 0.3(3) . . . . ?
C14 C7 C12 C11 -177.0(2) . . . . ?
C10 C11 C12 C7 -0.1(4) . . . . ?
C16 O3 C13 C14 -13.9(3) . . . . ?
C16 O3 C13 C17 104.9(2) . . . . ?
C16 O3 C13 C1 -136.4(2) . . . . ?
C6 C1 C13 O3 -136.7(2) . . . . ?
C2 C1 C13 O3 45.6(3) . . . . ?
C6 C1 C13 C14 108.4(2) . . . . ?
C2 C1 C13 C14 -69.4(3) . . . . ?
C6 C1 C13 C17 -20.0(3) . . . . ?
C2 C1 C13 C17 162.26(18) . . . . ?
C12 C7 C14 C15 45.3(3) . . . . ?
C8 C7 C14 C15 -131.9(3) . . . . ?
C12 C7 C14 C13 -134.5(2) . . . . ?
C8 C7 C14 C13 48.3(3) . . . . ?
O3 C13 C14 C15 9.0(3) . . . . ?
C17 C13 C14 C15 -106.3(2) . . . . ?
C1 C13 C14 C15 126.3(2) . . . . ?
O3 C13 C14 C7 -171.2(2) . . . . ?
C17 C13 C14 C7 73.5(3) . . . . ?
C1 C13 C14 C7 -53.9(3) . . . . ?
C7 C14 C15 C16 179.2(2) . . . . ?
C13 C14 C15 C16 -1.0(3) . . . . ?
C13 O3 C16 C15 13.4(3) . . . . ?
C14 C15 C16 O3 -7.5(3) . . . . ?
O3 C13 C17 O1 24.9(3) . . . . ?
C14 C13 C17 O1 138.0(2) . . . . ?
C1 C13 C17 O1 -92.0(3) . . . . ?
O3 C13 C17 O2 -155.6(2) . . . . ?
C14 C13 C17 O2 -42.5(3) . . . . ?
C1 C13 C17 O2 87.5(2) . . . . ?

_diffrn_measured_fraction_theta_max 0.984
_diffrn_reflns_theta_full        28.71
_diffrn_measured_fraction_theta_full 0.984
_refine_diff_density_max         0.343
_refine_diff_density_min         -0.169
_refine_diff_density_rms         0.043
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: '
