# Electronic Supplementary Material (ESI) for Chemical Communications
# This journal is © The Royal Society of Chemistry 2013

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#
#                 Cambridge Crystallographic Data Centre
#                                CCDC 
# 
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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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#  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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#  data retrieval see:
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data_shelxl

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         'C23 H16 N3 O'
_chemical_formula_sum            'C23 H16 N3 O'
_chemical_formula_weight         350.39

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 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           Monoclinic
_symmetry_space_group_name_H-M   'P 21/n'


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

_cell_length_a                   9.9695(7)
_cell_length_b                   8.1556(6)
_cell_length_c                   20.8837(15)
_cell_angle_alpha                90.00
_cell_angle_beta                 99.284(7)
_cell_angle_gamma                90.00
_cell_volume                     1675.8(2)
_cell_formula_units_Z            4
_cell_measurement_temperature    100(2)
_cell_measurement_reflns_used    2787
_cell_measurement_theta_min      2.9591
_cell_measurement_theta_max      29.5886

_exptl_crystal_description       rod
_exptl_crystal_colour            Black
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.389
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             732
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.84473
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_process_details   
'Empirical absorption correction (CrysAlis RED, Oxford Diffraction)'

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      100(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'SuperNova (Mo) X-ray Source'
_diffrn_radiation_monochromator  mirror
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_detector_area_resol_mean 10.4223
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            8466
_diffrn_reflns_av_R_equivalents  0.0308
_diffrn_reflns_av_sigmaI/netI    0.0362
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_theta_min         3.24
_diffrn_reflns_theta_max         25.00
_reflns_number_total             2949
_reflns_number_gt                2352
_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 F^2^ against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F^2^, conventional R-factors R are based 
 on F, with F set to zero for negative F^2^. The threshold expression of 
 F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F^2^ 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/[\s^2^(Fo^2^)+(0.0536P)^2^+0.6689P] where P=(Fo^2^+2Fc^2^)/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_number_reflns         2949
_refine_ls_number_parameters     244
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0576
_refine_ls_R_factor_gt           0.0447
_refine_ls_wR_factor_ref         0.1248
_refine_ls_wR_factor_gt          0.1179
_refine_ls_goodness_of_fit_ref   1.096
_refine_ls_restrained_S_all      1.096
_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
C1 C 1.16630(17) -0.4534(2) -0.08520(8) 0.0182(4) Uani 1 1 d . . .
C2 C 1.09681(17) -0.3189(2) 0.00027(9) 0.0184(4) Uani 1 1 d . . .
C3 C 1.11946(18) -0.2591(2) 0.06388(9) 0.0203(4) Uani 1 1 d . . .
H3 H 1.2008 -0.2832 0.0908 0.024 Uiso 1 1 calc R . .
C4 C 1.02417(18) -0.1658(2) 0.08710(9) 0.0210(4) Uani 1 1 d . . .
H4 H 1.0413 -0.1284 0.1297 0.025 Uiso 1 1 calc R . .
C5 C 0.90033(18) -0.1255(2) 0.04756(9) 0.0190(4) Uani 1 1 d . . .
C6 C 0.87606(17) -0.1824(2) -0.01592(9) 0.0186(4) Uani 1 1 d . . .
H6 H 0.7952 -0.1559 -0.0428 0.022 Uiso 1 1 calc R . .
C7 C 0.97238(18) -0.2788(2) -0.03946(8) 0.0180(4) Uani 1 1 d . . .
C8 C 0.80158(18) -0.0272(2) 0.07395(9) 0.0197(4) Uani 1 1 d . . .
C9 C 0.79751(18) 0.0293(2) 0.13408(9) 0.0220(4) Uani 1 1 d . . .
H9 H 0.8634 0.0138 0.1705 0.026 Uiso 1 1 calc R . .
C10 C 0.67416(19) 0.1166(2) 0.13162(10) 0.0250(4) Uani 1 1 d . . .
H10 H 0.6435 0.1696 0.1659 0.030 Uiso 1 1 calc R . .
C11 C 0.61045(19) 0.1080(2) 0.07043(10) 0.0260(5) Uani 1 1 d . . .
H11 H 0.5265 0.1551 0.0551 0.031 Uiso 1 1 calc R . .
C12 C 0.83255(17) -0.3123(2) -0.14719(8) 0.0189(4) Uani 1 1 d . . .
C13 C 0.71093(18) -0.3719(2) -0.13293(9) 0.0196(4) Uani 1 1 d . . .
H13 H 0.7086 -0.4277 -0.0943 0.024 Uiso 1 1 calc R . .
C14 C 0.59297(18) -0.3479(2) -0.17658(9) 0.0232(4) Uani 1 1 d . . .
H14 H 0.5110 -0.3892 -0.1676 0.028 Uiso 1 1 calc R . .
C15 C 0.59645(19) -0.2628(2) -0.23354(9) 0.0269(5) Uani 1 1 d . . .
H15 H 0.5166 -0.2454 -0.2625 0.032 Uiso 1 1 calc R . .
C16 C 0.7184(2) -0.2035(3) -0.24750(9) 0.0283(5) Uani 1 1 d . . .
H16 H 0.7205 -0.1466 -0.2859 0.034 Uiso 1 1 calc R . .
C17 C 0.83766(19) -0.2285(2) -0.20436(9) 0.0246(4) Uani 1 1 d . . .
H17 H 0.9200 -0.1895 -0.2137 0.029 Uiso 1 1 calc R . .
C18 C 1.27086(17) -0.5511(2) -0.11154(9) 0.0186(4) Uani 1 1 d . . .
C19 C 1.25617(18) -0.5937(2) -0.17708(9) 0.0208(4) Uani 1 1 d . . .
H19 H 1.1817 -0.5557 -0.2059 0.025 Uiso 1 1 calc R . .
C20 C 1.35168(18) -0.6920(2) -0.19936(9) 0.0228(4) Uani 1 1 d . . .
H20 H 1.3402 -0.7216 -0.2429 0.027 Uiso 1 1 calc R . .
C21 C 1.46475(19) -0.7469(2) -0.15703(9) 0.0246(5) Uani 1 1 d . . .
H21 H 1.5287 -0.8135 -0.1721 0.030 Uiso 1 1 calc R . .
C22 C 1.48152(18) -0.7021(2) -0.09245(9) 0.0245(4) Uani 1 1 d . . .
H22 H 1.5578 -0.7370 -0.0641 0.029 Uiso 1 1 calc R . .
C23 C 1.38536(18) -0.6056(2) -0.06992(9) 0.0218(4) Uani 1 1 d . . .
H23 H 1.3973 -0.5765 -0.0263 0.026 Uiso 1 1 calc R . .
N1 N 0.95518(14) -0.33837(18) -0.10216(7) 0.0191(4) Uani 1 1 d . . .
N2 N 1.05474(14) -0.41965(18) -0.12749(7) 0.0191(4) Uani 1 1 d . . .
N3 N 1.19321(15) -0.41240(18) -0.02210(7) 0.0197(4) Uani 1 1 d . . .
O1 O 0.68640(13) 0.01957(16) 0.03321(6) 0.0262(3) Uani 1 1 d . . .

loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
C1 0.0167(9) 0.0188(9) 0.0193(9) 0.0034(8) 0.0036(7) -0.0026(7)
C2 0.0173(9) 0.0183(9) 0.0200(9) 0.0031(8) 0.0044(7) -0.0012(7)
C3 0.0180(9) 0.0245(10) 0.0172(9) 0.0029(8) -0.0008(7) 0.0008(8)
C4 0.0238(10) 0.0233(10) 0.0159(9) 0.0008(8) 0.0033(8) -0.0019(8)
C5 0.0195(9) 0.0160(9) 0.0219(9) 0.0032(8) 0.0042(7) -0.0033(7)
C6 0.0153(9) 0.0202(9) 0.0195(9) 0.0027(8) 0.0002(7) -0.0012(7)
C7 0.0190(9) 0.0182(9) 0.0167(9) 0.0031(8) 0.0028(7) -0.0044(7)
C8 0.0170(9) 0.0183(9) 0.0233(10) 0.0041(8) 0.0017(7) -0.0029(7)
C9 0.0200(9) 0.0245(10) 0.0208(10) -0.0016(8) 0.0012(8) -0.0006(8)
C10 0.0267(10) 0.0238(10) 0.0264(10) -0.0028(9) 0.0096(9) 0.0024(8)
C11 0.0212(10) 0.0251(10) 0.0328(11) 0.0021(9) 0.0073(9) 0.0068(8)
C12 0.0165(9) 0.0201(9) 0.0189(9) -0.0032(8) -0.0005(7) 0.0014(7)
C13 0.0203(9) 0.0192(9) 0.0196(9) -0.0012(8) 0.0037(8) 0.0016(8)
C14 0.0163(9) 0.0240(10) 0.0297(11) -0.0054(9) 0.0043(8) 0.0012(8)
C15 0.0201(10) 0.0337(11) 0.0246(10) -0.0044(9) -0.0036(8) 0.0070(8)
C16 0.0296(11) 0.0366(12) 0.0178(10) 0.0038(9) 0.0010(8) 0.0044(9)
C17 0.0219(10) 0.0303(10) 0.0222(10) 0.0008(9) 0.0057(8) -0.0017(8)
C18 0.0156(9) 0.0186(9) 0.0220(9) 0.0024(8) 0.0040(7) -0.0025(7)
C19 0.0166(9) 0.0230(10) 0.0224(10) 0.0016(8) 0.0015(8) -0.0034(7)
C20 0.0221(10) 0.0255(10) 0.0217(10) -0.0019(8) 0.0067(8) -0.0022(8)
C21 0.0217(10) 0.0237(10) 0.0308(11) 0.0039(9) 0.0113(8) 0.0025(8)
C22 0.0172(9) 0.0303(11) 0.0262(10) 0.0077(9) 0.0040(8) 0.0024(8)
C23 0.0204(9) 0.0259(10) 0.0198(9) 0.0025(8) 0.0053(8) -0.0005(8)
N1 0.0137(7) 0.0252(8) 0.0180(8) -0.0010(7) 0.0019(6) 0.0008(6)
N2 0.0154(8) 0.0225(8) 0.0201(8) -0.0003(7) 0.0044(6) 0.0007(6)
N3 0.0177(8) 0.0232(8) 0.0184(8) 0.0016(7) 0.0032(6) 0.0007(6)
O1 0.0241(7) 0.0291(7) 0.0250(7) 0.0001(6) 0.0031(6) 0.0028(6)

_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
C1 N2 1.333(2) . ?
C1 N3 1.344(2) . ?
C1 C18 1.487(2) . ?
C2 N3 1.367(2) . ?
C2 C3 1.399(2) . ?
C2 C7 1.415(2) . ?
C3 C4 1.366(3) . ?
C3 H3 0.9300 . ?
C4 C5 1.409(3) . ?
C4 H4 0.9300 . ?
C5 C6 1.388(3) . ?
C5 C8 1.446(3) . ?
C6 C7 1.391(3) . ?
C6 H6 0.9300 . ?
C7 N1 1.381(2) . ?
C8 C9 1.344(3) . ?
C8 O1 1.368(2) . ?
C9 C10 1.415(3) . ?
C9 H9 0.9300 . ?
C10 C11 1.334(3) . ?
C10 H10 0.9300 . ?
C11 O1 1.374(2) . ?
C11 H11 0.9300 . ?
C12 C13 1.383(2) . ?
C12 C17 1.384(3) . ?
C12 N1 1.433(2) . ?
C13 C14 1.381(3) . ?
C13 H13 0.9300 . ?
C14 C15 1.383(3) . ?
C14 H14 0.9300 . ?
C15 C16 1.383(3) . ?
C15 H15 0.9300 . ?
C16 C17 1.386(3) . ?
C16 H16 0.9300 . ?
C17 H17 0.9300 . ?
C18 C23 1.391(3) . ?
C18 C19 1.397(3) . ?
C19 C20 1.382(3) . ?
C19 H19 0.9300 . ?
C20 C21 1.390(3) . ?
C20 H20 0.9300 . ?
C21 C22 1.381(3) . ?
C21 H21 0.9300 . ?
C22 C23 1.381(3) . ?
C22 H22 0.9300 . ?
C23 H23 0.9300 . ?
N1 N2 1.369(2) . ?

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
N2 C1 N3 127.71(16) . . ?
N2 C1 C18 115.19(15) . . ?
N3 C1 C18 117.08(15) . . ?
N3 C2 C3 120.29(16) . . ?
N3 C2 C7 121.79(16) . . ?
C3 C2 C7 117.93(16) . . ?
C4 C3 C2 121.09(17) . . ?
C4 C3 H3 119.5 . . ?
C2 C3 H3 119.5 . . ?
C3 C4 C5 121.05(17) . . ?
C3 C4 H4 119.5 . . ?
C5 C4 H4 119.5 . . ?
C6 C5 C4 118.88(16) . . ?
C6 C5 C8 121.64(16) . . ?
C4 C5 C8 119.48(16) . . ?
C5 C6 C7 120.16(16) . . ?
C5 C6 H6 119.9 . . ?
C7 C6 H6 119.9 . . ?
N1 C7 C6 123.14(16) . . ?
N1 C7 C2 115.96(15) . . ?
C6 C7 C2 120.88(16) . . ?
C9 C8 O1 109.67(16) . . ?
C9 C8 C5 132.14(17) . . ?
O1 C8 C5 118.18(16) . . ?
C8 C9 C10 107.19(17) . . ?
C8 C9 H9 126.4 . . ?
C10 C9 H9 126.4 . . ?
C11 C10 C9 106.55(17) . . ?
C11 C10 H10 126.7 . . ?
C9 C10 H10 126.7 . . ?
C10 C11 O1 110.43(17) . . ?
C10 C11 H11 124.8 . . ?
O1 C11 H11 124.8 . . ?
C13 C12 C17 121.00(17) . . ?
C13 C12 N1 119.44(16) . . ?
C17 C12 N1 119.55(16) . . ?
C14 C13 C12 119.41(17) . . ?
C14 C13 H13 120.3 . . ?
C12 C13 H13 120.3 . . ?
C13 C14 C15 120.15(17) . . ?
C13 C14 H14 119.9 . . ?
C15 C14 H14 119.9 . . ?
C14 C15 C16 120.14(18) . . ?
C14 C15 H15 119.9 . . ?
C16 C15 H15 119.9 . . ?
C15 C16 C17 120.17(18) . . ?
C15 C16 H16 119.9 . . ?
C17 C16 H16 119.9 . . ?
C12 C17 C16 119.11(17) . . ?
C12 C17 H17 120.4 . . ?
C16 C17 H17 120.4 . . ?
C23 C18 C19 118.60(16) . . ?
C23 C18 C1 119.58(16) . . ?
C19 C18 C1 121.81(16) . . ?
C20 C19 C18 120.35(17) . . ?
C20 C19 H19 119.8 . . ?
C18 C19 H19 119.8 . . ?
C19 C20 C21 120.34(17) . . ?
C19 C20 H20 119.8 . . ?
C21 C20 H20 119.8 . . ?
C22 C21 C20 119.59(17) . . ?
C22 C21 H21 120.2 . . ?
C20 C21 H21 120.2 . . ?
C23 C22 C21 120.16(18) . . ?
C23 C22 H22 119.9 . . ?
C21 C22 H22 119.9 . . ?
C22 C23 C18 120.93(17) . . ?
C22 C23 H23 119.5 . . ?
C18 C23 H23 119.5 . . ?
N2 N1 C7 123.35(14) . . ?
N2 N1 C12 114.41(13) . . ?
C7 N1 C12 122.17(14) . . ?
C1 N2 N1 115.06(14) . . ?
C1 N3 C2 115.70(15) . . ?
C8 O1 C11 106.16(14) . . ?

_diffrn_measured_fraction_theta_max 0.998
_diffrn_reflns_theta_full        25.00
_diffrn_measured_fraction_theta_full 0.998
_refine_diff_density_max         0.178
_refine_diff_density_min         -0.284
_refine_diff_density_rms         0.050
_database_code_depnum_ccdc_archive 'CCDC 947823'