# Electronic Supplementary Material (ESI) for RSC Advances.
# This journal is © The Royal Society of Chemistry 2014

#######################################################################
#
#                 Cambridge Crystallographic Data Centre
#                                CCDC 
# 
#######################################################################
# 
#  This CIF contains data from an original supplementary publication
#  deposited with the CCDC, and may include chemical, crystal,
#  experimental, refinement, atomic coordinates,
#  anisotropic displacement parameters and molecular geometry data,
#  as required by the journal to which it was submitted.
#
#  This CIF is provided on the understanding that it is used for bona
#  fide research purposes only. It may contain copyright material
#  of the CCDC or of third parties, and may not be copied or further
#  disseminated in any form, whether machine-readable or not,
#  except for the purpose of generating routine backup copies
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# 
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#  data retrieval see:
#                         www.ccdc.cam.ac.uk
#
#  Bona fide researchers may freely download Mercury and enCIFer
#  from this site to visualise CIF-encoded structures and 
#  to carry out CIF format checking respectively.
#
data_p

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C28 H22 N2 O2'
_chemical_formula_weight         418.48

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'
N N 0.0061 0.0033 '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           Triclinic
_symmetry_space_group_name_H-M   P-1

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, -z'

_cell_length_a                   8.8350(19)
_cell_length_b                   11.026(2)
_cell_length_c                   12.387(3)
_cell_angle_alpha                91.060(4)
_cell_angle_beta                 101.971(3)
_cell_angle_gamma                109.109(4)
_cell_volume                     1110.5(4)
_cell_formula_units_Z            2
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    1180
_cell_measurement_theta_min      2.467
_cell_measurement_theta_max      22.038

_exptl_crystal_description       block
_exptl_crystal_colour            ?
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.252
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             440
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9906
_exptl_absorpt_correction_T_max  0.9937
_exptl_absorpt_process_details   SADABS

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      293(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_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            5568
_diffrn_reflns_av_R_equivalents  0.0206
_diffrn_reflns_av_sigmaI/netI    0.0448
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_theta_min         1.96
_diffrn_reflns_theta_max         25.00
_reflns_number_total             3877
_reflns_number_gt                2404
_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)+(0.0550P)²+0.1794P] 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         3877
_refine_ls_number_parameters     289
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0861
_refine_ls_R_factor_gt           0.0498
_refine_ls_wR_factor_ref         0.1373
_refine_ls_wR_factor_gt          0.1155
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_restrained_S_all      1.020
_refine_ls_shift/su_max          0.003
_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
O1 O 0.13776(18) 0.85300(13) 0.58603(11) 0.0521(4) Uani 1 1 d . . .
O2 O -0.0654(2) 0.72219(16) 0.65668(13) 0.0675(5) Uani 1 1 d . . .
N1 N -0.0760(2) 0.71799(18) 0.39302(14) 0.0520(5) Uani 1 1 d . . .
N2 N -0.1860(2) 0.6856(2) 0.29184(14) 0.0606(5) Uani 1 1 d . . .
C15 C 0.0275(3) 0.6574(2) 0.39614(17) 0.0467(5) Uani 1 1 d . . .
C11 C -0.0017(3) 0.8248(2) 0.62515(17) 0.0518(6) Uani 1 1 d . . .
C1 C 0.2076(3) 0.7563(2) 0.58338(18) 0.0478(5) Uani 1 1 d . . .
C2 C 0.1596(3) 0.6669(2) 0.49266(17) 0.0462(5) Uani 1 1 d . . .
C23 C -0.0906(3) 0.6733(2) 0.11833(17) 0.0522(6) Uani 1 1 d . . .
C5 C 0.4128(3) 0.6668(2) 0.67675(19) 0.0561(6) Uani 1 1 d . . .
C22 C -0.1463(3) 0.6040(2) 0.21534(17) 0.0530(6) Uani 1 1 d . . .
H22 H -0.2415 0.5258 0.1881 0.064 Uiso 1 1 calc R . .
C3 C 0.2452(3) 0.5778(2) 0.49473(19) 0.0549(6) Uani 1 1 d . . .
H3 H 0.2180 0.5179 0.4338 0.066 Uiso 1 1 calc R . .
C6 C 0.3332(3) 0.7597(2) 0.67680(18) 0.0533(6) Uani 1 1 d . . .
C16 C -0.3252(3) 0.7222(2) 0.27378(19) 0.0551(6) Uani 1 1 d . . .
C14 C -0.0086(3) 0.5698(2) 0.29216(17) 0.0541(6) Uani 1 1 d . . .
H14A H -0.0455 0.4798 0.3066 0.065 Uiso 1 1 calc R . .
H14B H 0.0875 0.5874 0.2607 0.065 Uiso 1 1 calc R . .
C4 C 0.3662(3) 0.5771(2) 0.5832(2) 0.0587(6) Uani 1 1 d . . .
H4 H 0.4185 0.5166 0.5817 0.070 Uiso 1 1 calc R . .
C28 C -0.1095(4) 0.6057(3) 0.0191(2) 0.0854(9) Uani 1 1 d . . .
H28 H -0.1645 0.5172 0.0092 0.102 Uiso 1 1 calc R . .
C12 C -0.0565(3) 0.9374(2) 0.62411(19) 0.0598(6) Uani 1 1 d . . .
H12 H 0.0105 1.0155 0.6066 0.072 Uiso 1 1 calc R . .
C17 C -0.3621(3) 0.7809(3) 0.3592(2) 0.0670(7) Uani 1 1 d . . .
H17 H -0.2941 0.7950 0.4298 0.080 Uiso 1 1 calc R . .
C21 C -0.4303(3) 0.6984(3) 0.1696(2) 0.0733(7) Uani 1 1 d . . .
H21 H -0.4096 0.6565 0.1113 0.088 Uiso 1 1 calc R . .
C7 C 0.3817(3) 0.8513(3) 0.7702(2) 0.0677(7) Uani 1 1 d . . .
H7 H 0.3329 0.9143 0.7707 0.081 Uiso 1 1 calc R . .
C24 C -0.0115(3) 0.8043(3) 0.1288(2) 0.0701(7) Uani 1 1 d . . .
H24 H -0.0002 0.8517 0.1946 0.084 Uiso 1 1 calc R . .
C27 C -0.0459(5) 0.6699(5) -0.0676(3) 0.1093(13) Uani 1 1 d . . .
H27 H -0.0586 0.6244 -0.1347 0.131 Uiso 1 1 calc R . .
C10 C 0.5356(3) 0.6672(3) 0.7714(2) 0.0711(7) Uani 1 1 d . . .
H10 H 0.5884 0.6066 0.7724 0.085 Uiso 1 1 calc R . .
C20 C -0.5669(3) 0.7378(3) 0.1534(3) 0.0867(9) Uani 1 1 d . . .
H20 H -0.6370 0.7229 0.0836 0.104 Uiso 1 1 calc R . .
C8 C 0.5000(4) 0.8475(3) 0.8593(2) 0.0825(8) Uani 1 1 d . . .
H8 H 0.5299 0.9074 0.9205 0.099 Uiso 1 1 calc R . .
C9 C 0.5769(3) 0.7546(3) 0.8599(2) 0.0839(9) Uani 1 1 d . . .
H9 H 0.6567 0.7530 0.9215 0.101 Uiso 1 1 calc R . .
C19 C -0.5997(4) 0.7980(3) 0.2385(3) 0.0928(10) Uani 1 1 d . . .
H19 H -0.6908 0.8247 0.2265 0.111 Uiso 1 1 calc R . .
C18 C -0.4974(4) 0.8188(3) 0.3416(3) 0.0875(9) Uani 1 1 d . . .
H18 H -0.5200 0.8590 0.3999 0.105 Uiso 1 1 calc R . .
C25 C 0.0518(4) 0.8676(4) 0.0445(3) 0.0989(11) Uani 1 1 d . . .
H25 H 0.1059 0.9563 0.0537 0.119 Uiso 1 1 calc R . .
C13 C -0.1960(4) 0.9308(3) 0.6469(2) 0.0795(8) Uani 1 1 d . . .
H13A H -0.2643 0.8533 0.6645 0.095 Uiso 1 1 calc R . .
H13B H -0.2275 1.0035 0.6456 0.095 Uiso 1 1 calc R . .
C26 C 0.0339(5) 0.7991(5) -0.0515(3) 0.1166(14) Uani 1 1 d . . .
H26 H 0.0775 0.8415 -0.1081 0.140 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
O1 C11 1.361(3) . ?
O1 C1 1.399(2) . ?
O2 C11 1.200(3) . ?
N1 C15 1.293(3) . ?
N1 N2 1.376(2) . ?
N2 C16 1.392(3) . ?
N2 C22 1.464(3) . ?
C15 C2 1.462(3) . ?
C15 C14 1.509(3) . ?
C11 C12 1.473(3) . ?
C1 C2 1.379(3) . ?
C1 C6 1.418(3) . ?
C2 C3 1.421(3) . ?
C23 C24 1.373(3) . ?
C23 C28 1.377(3) . ?
C23 C22 1.518(3) . ?
C5 C4 1.408(3) . ?
C5 C6 1.420(3) . ?
C5 C10 1.421(3) . ?
C22 C14 1.537(3) . ?
C22 H22 0.9800 . ?
C3 C4 1.365(3) . ?
C3 H3 0.9300 . ?
C6 C7 1.418(3) . ?
C16 C17 1.379(3) . ?
C16 C21 1.389(3) . ?
C14 H14A 0.9700 . ?
C14 H14B 0.9700 . ?
C4 H4 0.9300 . ?
C28 C27 1.409(4) . ?
C28 H28 0.9300 . ?
C12 C13 1.300(3) . ?
C12 H12 0.9300 . ?
C17 C18 1.369(4) . ?
C17 H17 0.9300 . ?
C21 C20 1.390(4) . ?
C21 H21 0.9300 . ?
C7 C8 1.365(3) . ?
C7 H7 0.9300 . ?
C24 C25 1.380(4) . ?
C24 H24 0.9300 . ?
C27 C26 1.356(5) . ?
C27 H27 0.9300 . ?
C10 C9 1.353(4) . ?
C10 H10 0.9300 . ?
C20 C19 1.364(4) . ?
C20 H20 0.9300 . ?
C8 C9 1.402(4) . ?
C8 H8 0.9300 . ?
C9 H9 0.9300 . ?
C19 C18 1.369(4) . ?
C19 H19 0.9300 . ?
C18 H18 0.9300 . ?
C25 C26 1.349(5) . ?
C25 H25 0.9300 . ?
C13 H13A 0.9300 . ?
C13 H13B 0.9300 . ?
C26 H26 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
C11 O1 C1 117.28(16) . . ?
C15 N1 N2 108.84(17) . . ?
N1 N2 C16 120.06(18) . . ?
N1 N2 C22 113.25(17) . . ?
C16 N2 C22 126.51(19) . . ?
N1 C15 C2 123.57(19) . . ?
N1 C15 C14 112.79(19) . . ?
C2 C15 C14 123.55(19) . . ?
O2 C11 O1 123.0(2) . . ?
O2 C11 C12 126.9(2) . . ?
O1 C11 C12 110.1(2) . . ?
C2 C1 O1 121.05(18) . . ?
C2 C1 C6 122.9(2) . . ?
O1 C1 C6 115.97(19) . . ?
C1 C2 C3 116.8(2) . . ?
C1 C2 C15 124.79(19) . . ?
C3 C2 C15 118.4(2) . . ?
C24 C23 C28 117.9(2) . . ?
C24 C23 C22 121.1(2) . . ?
C28 C23 C22 120.9(2) . . ?
C4 C5 C6 118.7(2) . . ?
C4 C5 C10 122.5(2) . . ?
C6 C5 C10 118.8(2) . . ?
N2 C22 C23 112.71(18) . . ?
N2 C22 C14 101.43(16) . . ?
C23 C22 C14 112.49(19) . . ?
N2 C22 H22 110.0 . . ?
C23 C22 H22 110.0 . . ?
C14 C22 H22 110.0 . . ?
C4 C3 C2 122.1(2) . . ?
C4 C3 H3 118.9 . . ?
C2 C3 H3 118.9 . . ?
C7 C6 C1 122.8(2) . . ?
C7 C6 C5 118.8(2) . . ?
C1 C6 C5 118.4(2) . . ?
C17 C16 C21 119.0(2) . . ?
C17 C16 N2 120.7(2) . . ?
C21 C16 N2 120.4(2) . . ?
C15 C14 C22 102.64(17) . . ?
C15 C14 H14A 111.2 . . ?
C22 C14 H14A 111.2 . . ?
C15 C14 H14B 111.2 . . ?
C22 C14 H14B 111.2 . . ?
H14A C14 H14B 109.2 . . ?
C3 C4 C5 121.0(2) . . ?
C3 C4 H4 119.5 . . ?
C5 C4 H4 119.5 . . ?
C23 C28 C27 120.4(3) . . ?
C23 C28 H28 119.8 . . ?
C27 C28 H28 119.8 . . ?
C13 C12 C11 121.9(2) . . ?
C13 C12 H12 119.1 . . ?
C11 C12 H12 119.1 . . ?
C18 C17 C16 120.9(3) . . ?
C18 C17 H17 119.5 . . ?
C16 C17 H17 119.5 . . ?
C16 C21 C20 119.2(3) . . ?
C16 C21 H21 120.4 . . ?
C20 C21 H21 120.4 . . ?
C8 C7 C6 120.2(3) . . ?
C8 C7 H7 119.9 . . ?
C6 C7 H7 119.9 . . ?
C23 C24 C25 122.0(3) . . ?
C23 C24 H24 119.0 . . ?
C25 C24 H24 119.0 . . ?
C26 C27 C28 118.9(3) . . ?
C26 C27 H27 120.5 . . ?
C28 C27 H27 120.5 . . ?
C9 C10 C5 120.9(3) . . ?
C9 C10 H10 119.6 . . ?
C5 C10 H10 119.6 . . ?
C19 C20 C21 121.0(3) . . ?
C19 C20 H20 119.5 . . ?
C21 C20 H20 119.5 . . ?
C7 C8 C9 121.0(3) . . ?
C7 C8 H8 119.5 . . ?
C9 C8 H8 119.5 . . ?
C10 C9 C8 120.3(3) . . ?
C10 C9 H9 119.8 . . ?
C8 C9 H9 119.8 . . ?
C20 C19 C18 119.6(3) . . ?
C20 C19 H19 120.2 . . ?
C18 C19 H19 120.2 . . ?
C19 C18 C17 120.4(3) . . ?
C19 C18 H18 119.8 . . ?
C17 C18 H18 119.8 . . ?
C26 C25 C24 119.1(3) . . ?
C26 C25 H25 120.5 . . ?
C24 C25 H25 120.5 . . ?
C12 C13 H13A 120.0 . . ?
C12 C13 H13B 120.0 . . ?
H13A C13 H13B 120.0 . . ?
C25 C26 C27 121.7(4) . . ?
C25 C26 H26 119.1 . . ?
C27 C26 H26 119.1 . . ?

_diffrn_measured_fraction_theta_max 0.991
_diffrn_reflns_theta_full        25.00
_diffrn_measured_fraction_theta_full 0.991
_refine_diff_density_max         0.233
_refine_diff_density_min         -0.170
_refine_diff_density_rms         0.033
_database_code_depnum_ccdc_archive 'CCDC 1000795'
