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# 
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#  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.
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data_a30604a

_audit_creation_method           SHELXL-2013
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C11 H8.33 N0.33 O0.33'
_chemical_formula_weight         150.51

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'

_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_H-M_alt        'P -1'
_space_group_name_Hall           '-P 1'

_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. 
;

loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, -z'

_cell_length_a                   9.595(4)
_cell_length_b                   11.379(5)
_cell_length_c                   12.774(6)
_cell_angle_alpha                81.149(7)
_cell_angle_beta                 72.684(7)
_cell_angle_gamma                67.299(7)
_cell_volume                     1227.2(9)
_cell_formula_units_Z            6
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    699
_cell_measurement_theta_min      2.384
_cell_measurement_theta_max      21.183

_exptl_crystal_description       block
_exptl_crystal_colour            colorless
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.222
_exptl_crystal_F_000             476
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.360
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.060
_exptl_absorpt_coefficient_mu    0.073
_shelx_estimated_absorpt_T_min   0.974
_shelx_estimated_absorpt_T_max   0.996
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.235
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_process_details   sadabs

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_source                   ?
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            5084
_diffrn_reflns_av_unetI/netI     0.1407
_diffrn_reflns_av_R_equivalents  0.0452
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_theta_min         1.671
_diffrn_reflns_theta_max         25.009
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measured_fraction_theta_full 0.956
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_Laue_measured_fraction_full 0.956
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_point_group_measured_fraction_full 0.956
_reflns_number_total             4244
_reflns_number_gt                1448
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_max     .
_reflns_Friedel_fraction_full    .

_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. 
;

_computing_data_collection       'Bruker SMART'
_computing_cell_refinement       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
; 
 ? 
;
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
; 
 w=1/[σ²(Fo²)+(0.0406P)²-0.1400P] 
 where P=(Fo²+2Fc²)/3 
;
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       .
_refine_ls_number_reflns         4244
_refine_ls_number_parameters     316
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1544
_refine_ls_R_factor_gt           0.0501
_refine_ls_wR_factor_ref         0.1132
_refine_ls_wR_factor_gt          0.0942
_refine_ls_goodness_of_fit_ref   0.750
_refine_ls_restrained_S_all      0.750
_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_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
N1 N 0.8029(2) 1.0500(2) 0.73789(19) 0.0560(7) Uani 1 1 d . . . . .
O1 O 0.5457(3) 0.86649(18) 0.66006(16) 0.0680(6) Uani 1 1 d . . . . .
C1 C 0.7910(4) 0.8903(3) 0.6443(2) 0.0516(8) Uani 1 1 d . . . . .
C2 C 0.9097(3) 0.7598(3) 0.6162(2) 0.0717(10) Uani 1 1 d . . . . .
H2A H 0.9668 0.7122 0.6697 0.086 Uiso 1 1 calc R U . . .
H2B H 0.8869 0.7083 0.5744 0.086 Uiso 1 1 calc R U . . .
C3 C 0.9431(3) 0.8739(3) 0.5595(2) 0.0744(10) Uani 1 1 d . . . . .
H3A H 0.9405 0.8918 0.4832 0.089 Uiso 1 1 calc R U . . .
H3B H 1.0204 0.8958 0.5785 0.089 Uiso 1 1 calc R U . . .
C4 C 0.7696(3) 0.9454(3) 0.7487(2) 0.0514(8) Uani 1 1 d . . . . .
C5 C 0.7188(3) 0.8896(3) 0.8535(2) 0.0487(8) Uani 1 1 d . . . . .
C6 C 0.6761(3) 0.7826(3) 0.8685(2) 0.0589(9) Uani 1 1 d . . . . .
H6 H 0.6772 0.7459 0.8080 0.071 Uiso 1 1 calc R U . . .
C7 C 0.6329(3) 0.7319(3) 0.9710(3) 0.0670(9) Uani 1 1 d . . . . .
H7 H 0.6047 0.6607 0.9800 0.080 Uiso 1 1 calc R U . . .
C8 C 0.6306(3) 0.7855(3) 1.0620(3) 0.0699(10) Uani 1 1 d . . . . .
H8 H 0.6016 0.7496 1.1317 0.084 Uiso 1 1 calc R U . . .
C9 C 0.6702(3) 0.8897(3) 1.0504(2) 0.0680(9) Uani 1 1 d . . . . .
H9 H 0.6683 0.9251 1.1120 0.082 Uiso 1 1 calc R U . . .
C10 C 0.7142(3) 0.9446(3) 0.9452(2) 0.0518(8) Uani 1 1 d . . . . .
C11 C 0.7529(3) 1.0558(3) 0.9295(3) 0.0623(9) Uani 1 1 d . . . . .
H11 H 0.7524 1.0934 0.9894 0.075 Uiso 1 1 calc R U . . .
C12 C 0.7900(3) 1.1064(3) 0.8277(3) 0.0548(8) Uani 1 1 d . . . . .
C13 C 0.8215(3) 1.2272(3) 0.8047(3) 0.0644(9) Uani 1 1 d . . . . .
C14 C 0.8174(3) 1.2909(3) 0.7054(3) 0.0775(10) Uani 1 1 d . . . . .
H14 H 0.7957 1.2585 0.6521 0.093 Uiso 1 1 calc R U . . .
C15 C 0.8456(4) 1.4047(4) 0.6840(3) 0.1037(14) Uani 1 1 d . . . . .
H15 H 0.8410 1.4482 0.6164 0.124 Uiso 1 1 calc R U . . .
C16 C 0.8794(5) 1.4529(4) 0.7589(4) 0.1172(18) Uani 1 1 d . . . . .
H16 H 0.8992 1.5284 0.7433 0.141 Uiso 1 1 calc R U . . .
C17 C 0.8840(5) 1.3900(4) 0.8574(3) 0.1302(18) Uani 1 1 d . . . . .
H17 H 0.9072 1.4227 0.9097 0.156 Uiso 1 1 calc R U . . .
C18 C 0.8545(4) 1.2773(4) 0.8814(3) 0.1031(13) Uani 1 1 d . . . . .
H18 H 0.8571 1.2356 0.9497 0.124 Uiso 1 1 calc R U . . .
C19 C 0.6538(4) 0.9300(3) 0.5983(2) 0.0662(9) Uani 1 1 d . . . . .
H19 H 0.6907 0.9047 0.5220 0.079 Uiso 1 1 calc R U . . .
C20 C 0.5507(5) 1.0675(3) 0.6018(3) 0.0639(9) Uani 1 1 d . . . . .
C21 C 0.5872(4) 1.1733(4) 0.5574(3) 0.0790(10) Uani 1 1 d . . . . .
H21 H 0.6895 1.1648 0.5195 0.095 Uiso 1 1 calc R U . . .
C22 C 0.4722(5) 1.2903(4) 0.5695(3) 0.0857(11) Uani 1 1 d . . . . .
H22 H 0.4956 1.3625 0.5399 0.103 Uiso 1 1 calc R U . . .
C23 C 0.3229(5) 1.3023(3) 0.6247(3) 0.0853(11) Uani 1 1 d . . . . .
H23 H 0.2458 1.3833 0.6330 0.102 Uiso 1 1 calc R U . . .
C24 C 0.2818(4) 1.1966(4) 0.6695(2) 0.0750(10) Uani 1 1 d . . . . .
H24 H 0.1791 1.2050 0.7059 0.090 Uiso 1 1 calc R U . . .
C25 C 0.4009(5) 1.0796(3) 0.6569(2) 0.0616(9) Uani 1 1 d . . . . .
C26 C 0.3962(5) 0.9533(3) 0.6905(2) 0.0659(9) Uani 1 1 d . . . . .
C27 C 0.2752(4) 0.9191(3) 0.7405(2) 0.0684(10) Uani 1 1 d . . . . .
H27 H 0.1795 0.9858 0.7599 0.082 Uiso 1 1 calc R U . . .
C28 C 0.2701(4) 0.7915(3) 0.7699(2) 0.0647(9) Uani 1 1 d . . . . .
C29 C 0.1263(4) 0.7813(3) 0.8241(3) 0.0786(10) Uani 1 1 d . . . . .
H29 H 0.0393 0.8558 0.8411 0.094 Uiso 1 1 calc R U . . .
C30 C 0.1064(4) 0.6671(4) 0.8535(3) 0.0841(11) Uani 1 1 d . . . . .
H30 H 0.0077 0.6645 0.8889 0.101 Uiso 1 1 calc R U . . .
C31 C 0.2322(5) 0.5575(3) 0.8305(3) 0.0902(12) Uani 1 1 d . . . . .
H31 H 0.2212 0.4788 0.8505 0.108 Uiso 1 1 calc R U . . .
C32 C 0.3764(5) 0.5646(4) 0.7771(3) 0.1083(14) Uani 1 1 d . . . . .
H32 H 0.4630 0.4898 0.7608 0.130 Uiso 1 1 calc R U . . .
C33 C 0.3949(4) 0.6793(4) 0.7474(3) 0.0877(12) Uani 1 1 d . . . . .
H33 H 0.4938 0.6812 0.7114 0.105 Uiso 1 1 calc R U . . .


_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
N1 C4 1.325(3) . ?
N1 C12 1.350(3) . ?
O1 C26 1.370(3) . ?
O1 C19 1.461(3) . ?
C1 C19 1.484(4) . ?
C1 C4 1.486(4) . ?
C1 C2 1.499(3) . ?
C1 C3 1.500(3) . ?
C2 C3 1.486(3) . ?
C4 C5 1.423(3) . ?
C5 C10 1.393(3) . ?
C5 C6 1.397(3) . ?
C6 C7 1.359(3) . ?
C7 C8 1.385(4) . ?
C8 C9 1.354(3) . ?
C9 C10 1.408(3) . ?
C10 C11 1.421(3) . ?
C11 C12 1.343(3) . ?
C12 C13 1.487(4) . ?
C13 C14 1.364(4) . ?
C13 C18 1.371(4) . ?
C14 C15 1.394(4) . ?
C15 C16 1.343(5) . ?
C16 C17 1.352(5) . ?
C17 C18 1.388(4) . ?
C19 C20 1.494(4) . ?
C20 C25 1.362(4) . ?
C20 C21 1.375(4) . ?
C21 C22 1.357(4) . ?
C22 C23 1.358(4) . ?
C23 C24 1.395(4) . ?
C24 C25 1.374(4) . ?
C25 C26 1.449(4) . ?
C26 C27 1.318(4) . ?
C27 C28 1.458(4) . ?
C28 C33 1.369(4) . ?
C28 C29 1.388(4) . ?
C29 C30 1.365(3) . ?
C30 C31 1.355(4) . ?
C31 C32 1.376(4) . ?
C32 C33 1.366(4) . ?

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
C4 N1 C12 120.2(3) . . ?
C26 O1 C19 110.6(2) . . ?
C19 C1 C4 118.0(2) . . ?
C19 C1 C2 115.4(3) . . ?
C4 C1 C2 120.0(3) . . ?
C19 C1 C3 114.1(3) . . ?
C4 C1 C3 116.4(3) . . ?
C2 C1 C3 59.40(16) . . ?
C3 C2 C1 60.31(17) . . ?
C2 C3 C1 60.30(16) . . ?
N1 C4 C5 121.8(3) . . ?
N1 C4 C1 115.5(3) . . ?
C5 C4 C1 122.7(3) . . ?
C10 C5 C6 119.0(3) . . ?
C10 C5 C4 117.4(3) . . ?
C6 C5 C4 123.6(3) . . ?
C7 C6 C5 120.5(3) . . ?
C6 C7 C8 120.4(3) . . ?
C9 C8 C7 120.6(3) . . ?
C8 C9 C10 120.1(3) . . ?
C5 C10 C9 119.4(3) . . ?
C5 C10 C11 118.7(3) . . ?
C9 C10 C11 121.9(3) . . ?
C12 C11 C10 119.6(3) . . ?
C11 C12 N1 122.1(3) . . ?
C11 C12 C13 123.0(3) . . ?
N1 C12 C13 114.9(3) . . ?
C14 C13 C18 118.6(3) . . ?
C14 C13 C12 119.9(3) . . ?
C18 C13 C12 121.6(3) . . ?
C13 C14 C15 120.0(4) . . ?
C16 C15 C14 121.3(4) . . ?
C15 C16 C17 119.0(5) . . ?
C16 C17 C18 120.9(4) . . ?
C13 C18 C17 120.2(4) . . ?
O1 C19 C1 110.4(2) . . ?
O1 C19 C20 102.7(3) . . ?
C1 C19 C20 117.7(3) . . ?
C25 C20 C21 120.6(3) . . ?
C25 C20 C19 109.9(3) . . ?
C21 C20 C19 129.5(4) . . ?
C22 C21 C20 119.1(3) . . ?
C21 C22 C23 120.2(3) . . ?
C22 C23 C24 121.9(3) . . ?
C25 C24 C23 116.6(3) . . ?
C20 C25 C24 121.5(3) . . ?
C20 C25 C26 108.5(3) . . ?
C24 C25 C26 129.9(4) . . ?
C27 C26 O1 122.4(3) . . ?
C27 C26 C25 129.4(4) . . ?
O1 C26 C25 108.1(3) . . ?
C26 C27 C28 129.2(3) . . ?
C33 C28 C29 116.3(3) . . ?
C33 C28 C27 125.8(3) . . ?
C29 C28 C27 117.8(3) . . ?
C30 C29 C28 123.1(3) . . ?
C31 C30 C29 119.3(3) . . ?
C30 C31 C32 118.9(3) . . ?
C33 C32 C31 121.4(3) . . ?
C32 C33 C28 121.0(3) . . ?

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
C19 C1 C2 C3 104.2(3) . . . . ?
C4 C1 C2 C3 -104.8(3) . . . . ?
C19 C1 C3 C2 -106.4(3) . . . . ?
C4 C1 C3 C2 110.8(3) . . . . ?
C12 N1 C4 C5 0.5(4) . . . . ?
C12 N1 C4 C1 -178.8(3) . . . . ?
C19 C1 C4 N1 -92.7(3) . . . . ?
C2 C1 C4 N1 116.9(3) . . . . ?
C3 C1 C4 N1 48.6(3) . . . . ?
C19 C1 C4 C5 88.0(3) . . . . ?
C2 C1 C4 C5 -62.3(4) . . . . ?
C3 C1 C4 C5 -130.7(3) . . . . ?
N1 C4 C5 C10 -3.9(4) . . . . ?
C1 C4 C5 C10 175.4(3) . . . . ?
N1 C4 C5 C6 177.1(2) . . . . ?
C1 C4 C5 C6 -3.7(4) . . . . ?
C10 C5 C6 C7 -0.9(4) . . . . ?
C4 C5 C6 C7 178.1(3) . . . . ?
C5 C6 C7 C8 0.0(4) . . . . ?
C6 C7 C8 C9 0.5(5) . . . . ?
C7 C8 C9 C10 0.0(4) . . . . ?
C6 C5 C10 C9 1.4(4) . . . . ?
C4 C5 C10 C9 -177.7(2) . . . . ?
C6 C5 C10 C11 -178.0(2) . . . . ?
C4 C5 C10 C11 3.0(4) . . . . ?
C8 C9 C10 C5 -0.9(4) . . . . ?
C8 C9 C10 C11 178.4(3) . . . . ?
C5 C10 C11 C12 1.1(4) . . . . ?
C9 C10 C11 C12 -178.2(3) . . . . ?
C10 C11 C12 N1 -4.8(4) . . . . ?
C10 C11 C12 C13 175.8(3) . . . . ?
C4 N1 C12 C11 4.0(4) . . . . ?
C4 N1 C12 C13 -176.5(2) . . . . ?
C11 C12 C13 C14 -162.5(3) . . . . ?
N1 C12 C13 C14 18.0(4) . . . . ?
C11 C12 C13 C18 17.2(4) . . . . ?
N1 C12 C13 C18 -162.3(3) . . . . ?
C18 C13 C14 C15 -0.3(5) . . . . ?
C12 C13 C14 C15 179.5(3) . . . . ?
C13 C14 C15 C16 0.9(5) . . . . ?
C14 C15 C16 C17 -0.8(7) . . . . ?
C15 C16 C17 C18 0.0(7) . . . . ?
C14 C13 C18 C17 -0.5(5) . . . . ?
C12 C13 C18 C17 179.8(3) . . . . ?
C16 C17 C18 C13 0.6(6) . . . . ?
C26 O1 C19 C1 129.8(3) . . . . ?
C26 O1 C19 C20 3.4(3) . . . . ?
C4 C1 C19 O1 -75.8(3) . . . . ?
C2 C1 C19 O1 75.9(3) . . . . ?
C3 C1 C19 O1 142.0(2) . . . . ?
C4 C1 C19 C20 41.7(4) . . . . ?
C2 C1 C19 C20 -166.6(3) . . . . ?
C3 C1 C19 C20 -100.5(3) . . . . ?
O1 C19 C20 C25 -1.4(3) . . . . ?
C1 C19 C20 C25 -122.9(3) . . . . ?
O1 C19 C20 C21 -180.0(3) . . . . ?
C1 C19 C20 C21 58.5(4) . . . . ?
C25 C20 C21 C22 0.3(5) . . . . ?
C19 C20 C21 C22 178.8(3) . . . . ?
C20 C21 C22 C23 -0.1(5) . . . . ?
C21 C22 C23 C24 -0.8(5) . . . . ?
C22 C23 C24 C25 1.4(5) . . . . ?
C21 C20 C25 C24 0.4(4) . . . . ?
C19 C20 C25 C24 -178.4(3) . . . . ?
C21 C20 C25 C26 177.8(3) . . . . ?
C19 C20 C25 C26 -1.0(3) . . . . ?
C23 C24 C25 C20 -1.2(4) . . . . ?
C23 C24 C25 C26 -178.0(3) . . . . ?
C19 O1 C26 C27 175.2(3) . . . . ?
C19 O1 C26 C25 -4.1(3) . . . . ?
C20 C25 C26 C27 -176.1(3) . . . . ?
C24 C25 C26 C27 1.0(5) . . . . ?
C20 C25 C26 O1 3.1(3) . . . . ?
C24 C25 C26 O1 -179.7(3) . . . . ?
O1 C26 C27 C28 -2.2(5) . . . . ?
C25 C26 C27 C28 177.0(3) . . . . ?
C26 C27 C28 C33 -1.8(5) . . . . ?
C26 C27 C28 C29 179.2(3) . . . . ?
C33 C28 C29 C30 -0.6(5) . . . . ?
C27 C28 C29 C30 178.5(3) . . . . ?
C28 C29 C30 C31 0.8(5) . . . . ?
C29 C30 C31 C32 -0.6(5) . . . . ?
C30 C31 C32 C33 0.3(6) . . . . ?
C31 C32 C33 C28 0.0(6) . . . . ?
C29 C28 C33 C32 0.2(5) . . . . ?
C27 C28 C33 C32 -178.8(3) . . . . ?

_refine_diff_density_max         0.131
_refine_diff_density_min         -0.154
_refine_diff_density_rms         0.035

_shelxl_version_number           2013-2



_database_code_depnum_ccdc_archive 'CCDC 973694'
