# Electronic Supplementary Material (ESI) for Chemical Science.
# This journal is © The Royal Society of Chemistry 2018

####################################################################### 
# 
# 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. 
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#######################################################################

data_engle94
_database_code_depnum_ccdc_archive 'CCDC 1835959'
_audit_update_record             
;
2018-04-10 deposited with the CCDC.
2018-08-31 downloaded from the CCDC.
;
_audit_creation_date             2018-03-15
_audit_creation_method           
;
Olex2 1.2-beta
(compiled 2018.03.09 svn.r3491 for OlexSys, GUI svn.r5479)
;
_shelx_SHELXL_version_number     2016/6
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         'C19 H18 N2 O2'
_chemical_formula_sum            'C19 H18 N2 O2'
_chemical_formula_weight         306.35
_chemical_melting_point          ?
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'
N N 0.0311 0.0180 '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'

_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.
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 1 21/c 1'
_space_group_name_Hall           '-P 2ybc'
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'

_cell_length_a                   11.2477(4)
_cell_length_b                   15.3784(5)
_cell_length_c                   9.6298(3)
_cell_angle_alpha                90
_cell_angle_beta                 114.2040(10)
_cell_angle_gamma                90
_cell_volume                     1519.25(9)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    9966
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      72.31
_cell_measurement_theta_min      4.31
_shelx_estimated_absorpt_T_max   0.917
_shelx_estimated_absorpt_T_min   0.822
_exptl_absorpt_coefficient_mu    0.704
_exptl_absorpt_correction_T_max  0.5230
_exptl_absorpt_correction_T_min  0.4401
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0738 before and 0.0497 after correction. The Ratio of minimum to maximum transmission is 0.8415. The λ/2 correction factor is Not present.'
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            'light violet'
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    violet
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       irregular
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.125
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0359
_diffrn_reflns_av_unetI/netI     0.0199
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            19137
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        67.500
_diffrn_reflns_theta_max         72.273
_diffrn_reflns_theta_min         4.309
_diffrn_ambient_temperature      100.0
_diffrn_detector                 'Bruker Platinum135 CCD'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD Area Detector'
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device       'Fixed Chi Three-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Pt-135'
_diffrn_measurement_method       'ω and φ scans'
_diffrn_radiation_monochromator  'Multilayer Mirrors'
_diffrn_radiation_probe          X-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_source                   'Micro Focus Rotating Anode'
_diffrn_source_type              'Bruker FR-591'
_diffrn_standards_number         0
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2781
_reflns_number_total             2971
_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.
;
_reflns_threshold_expression     'I > 2σ(I)'
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2016)'
_computing_data_collection       'APEX3 v2016.1-0 (Bruker, 2016)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.047
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         2971
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0368
_refine_ls_R_factor_gt           0.0350
_refine_ls_restrained_S_all      1.036
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0485P)²+0.4813P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0906
_refine_ls_wR_factor_ref         0.0925
_refine_special_details          ?
_olex2_refinement_description    
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All O(H) groups
2.a Secondary CH2 refined with riding coordinates:
 C11(H11A,H11B), C12(H12A,H12B), C13(H13A,H13B)
2.b Aromatic/amide H refined with riding coordinates:
 N2(H2A), C1(H1), C2(H2B), C3(H3), C5(H5), C6(H6), C7(H7), C15(H15), C16(H16),
 C18(H18), C19(H19)
2.c Idealised tetrahedral OH refined as rotating group with stretchable bonds:
 O2(H2)
;
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
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
O1 O 0.29994(8) 0.50499(5) 0.45618(9) 0.0305(2) Uani 1 1 d . . . . .
O2 O 0.73220(8) 0.35280(6) 1.38971(9) 0.0272(2) Uani 1 1 d . . . . .
H2 H 0.7176(8) 0.4018(11) 1.4313(11) 0.041 Uiso 1 1 calc GR . . . .
N1 N 0.06126(9) 0.33295(6) -0.00024(10) 0.0239(2) Uani 1 1 d . . . . .
N2 N 0.19912(9) 0.40828(6) 0.26553(10) 0.0223(2) Uani 1 1 d . . . . .
H2A H 0.169445 0.354621 0.248373 0.027 Uiso 1 1 calc R . . . .
C1 C -0.00915(11) 0.29431(8) -0.13079(13) 0.0272(3) Uani 1 1 d . . . . .
H1 H -0.043703 0.238358 -0.127478 0.033 Uiso 1 1 calc R . . . .
C2 C -0.03617(11) 0.33102(8) -0.27483(13) 0.0299(3) Uani 1 1 d . . . . .
H2B H -0.087226 0.300392 -0.365471 0.036 Uiso 1 1 calc R . . . .
C3 C 0.01258(11) 0.41149(8) -0.28127(12) 0.0292(3) Uani 1 1 d . . . . .
H3 H -0.004663 0.437436 -0.377146 0.035 Uiso 1 1 calc R . . . .
C4 C 0.08892(10) 0.45640(8) -0.14510(12) 0.0249(2) Uani 1 1 d . . . . .
C5 C 0.14486(11) 0.53944(8) -0.14043(13) 0.0289(3) Uani 1 1 d . . . . .
H5 H 0.131999 0.568536 -0.232531 0.035 Uiso 1 1 calc R . . . .
C6 C 0.21743(11) 0.57782(8) -0.00341(14) 0.0286(3) Uani 1 1 d . . . . .
H6 H 0.255028 0.633333 -0.001761 0.034 Uiso 1 1 calc R . . . .
C7 C 0.23768(11) 0.53661(7) 0.13587(13) 0.0249(2) Uani 1 1 d . . . . .
H7 H 0.287868 0.564628 0.229704 0.030 Uiso 1 1 calc R . . . .
C8 C 0.18470(10) 0.45606(7) 0.13530(12) 0.0212(2) Uani 1 1 d . . . . .
C9 C 0.10960(10) 0.41349(7) -0.00613(12) 0.0217(2) Uani 1 1 d . . . . .
C10 C 0.25208(10) 0.43274(7) 0.41389(12) 0.0217(2) Uani 1 1 d . . . . .
C11 C 0.24561(10) 0.36361(7) 0.52285(12) 0.0229(2) Uani 1 1 d . . . . .
H11A H 0.260627 0.305991 0.487085 0.027 Uiso 1 1 calc R . . . .
H11B H 0.156923 0.363366 0.520902 0.027 Uiso 1 1 calc R . . . .
C12 C 0.34449(10) 0.37696(7) 0.68622(12) 0.0226(2) Uani 1 1 d . . . . .
H12A H 0.325308 0.432242 0.725579 0.027 Uiso 1 1 calc R . . . .
H12B H 0.432874 0.381508 0.687929 0.027 Uiso 1 1 calc R . . . .
C13 C 0.34191(10) 0.30218(7) 0.78997(12) 0.0221(2) Uani 1 1 d . . . . .
H13A H 0.253674 0.298171 0.788857 0.027 Uiso 1 1 calc R . . . .
H13B H 0.359694 0.246873 0.749400 0.027 Uiso 1 1 calc R . . . .
C14 C 0.44090(10) 0.31368(7) 0.95271(11) 0.0202(2) Uani 1 1 d . . . . .
C15 C 0.53793(10) 0.25186(7) 1.02348(12) 0.0220(2) Uani 1 1 d . . . . .
H15 H 0.538921 0.199883 0.970647 0.026 Uiso 1 1 calc R . . . .
C16 C 0.63328(10) 0.26485(7) 1.16998(12) 0.0231(2) Uani 1 1 d . . . . .
H16 H 0.698787 0.222156 1.215950 0.028 Uiso 1 1 calc R . . . .
C17 C 0.63242(10) 0.34028(7) 1.24869(11) 0.0212(2) Uani 1 1 d . . . . .
C18 C 0.53267(10) 0.40061(7) 1.18314(12) 0.0222(2) Uani 1 1 d . . . . .
H18 H 0.528441 0.450657 1.238765 0.027 Uiso 1 1 calc R . . . .
C19 C 0.43943(10) 0.38739(7) 1.03626(12) 0.0216(2) Uani 1 1 d . . . . .
H19 H 0.372944 0.429626 0.991531 0.026 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 C10 1.2290(13) . ?
O2 H2 0.899(17) . ?
O2 C17 1.3752(13) . ?
N1 C1 1.3208(14) . ?
N1 C9 1.3631(15) . ?
N2 H2A 0.8800 . ?
N2 C8 1.4044(13) . ?
N2 C10 1.3563(13) . ?
C1 H1 0.9500 . ?
C1 C2 1.4105(16) . ?
C2 H2B 0.9500 . ?
C2 C3 1.3652(18) . ?
C3 H3 0.9500 . ?
C3 C4 1.4179(16) . ?
C4 C5 1.4162(17) . ?
C4 C9 1.4231(15) . ?
C5 H5 0.9500 . ?
C5 C6 1.3684(17) . ?
C6 H6 0.9500 . ?
C6 C7 1.4149(16) . ?
C7 H7 0.9500 . ?
C7 C8 1.3736(16) . ?
C8 C9 1.4331(15) . ?
C10 C11 1.5162(15) . ?
C11 H11A 0.9900 . ?
C11 H11B 0.9900 . ?
C11 C12 1.5229(14) . ?
C12 H12A 0.9900 . ?
C12 H12B 0.9900 . ?
C12 C13 1.5314(15) . ?
C13 H13A 0.9900 . ?
C13 H13B 0.9900 . ?
C13 C14 1.5153(14) . ?
C14 C15 1.3963(15) . ?
C14 C19 1.3941(15) . ?
C15 H15 0.9500 . ?
C15 C16 1.3927(15) . ?
C16 H16 0.9500 . ?
C16 C17 1.3878(15) . ?
C17 C18 1.3919(15) . ?
C18 H18 0.9500 . ?
C18 C19 1.3876(15) . ?
C19 H19 0.9500 . ?

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
C17 O2 H2 109.5 . . ?
C1 N1 C9 117.57(10) . . ?
C8 N2 H2A 115.3 . . ?
C10 N2 H2A 115.3 . . ?
C10 N2 C8 129.46(9) . . ?
N1 C1 H1 118.0 . . ?
N1 C1 C2 124.01(11) . . ?
C2 C1 H1 118.0 . . ?
C1 C2 H2B 120.7 . . ?
C3 C2 C1 118.61(10) . . ?
C3 C2 H2B 120.7 . . ?
C2 C3 H3 119.9 . . ?
C2 C3 C4 120.11(10) . . ?
C4 C3 H3 119.9 . . ?
C3 C4 C9 116.57(11) . . ?
C5 C4 C3 124.14(10) . . ?
C5 C4 C9 119.28(10) . . ?
C4 C5 H5 120.0 . . ?
C6 C5 C4 120.07(10) . . ?
C6 C5 H5 120.0 . . ?
C5 C6 H6 119.3 . . ?
C5 C6 C7 121.43(11) . . ?
C7 C6 H6 119.3 . . ?
C6 C7 H7 120.0 . . ?
C8 C7 C6 119.94(10) . . ?
C8 C7 H7 120.0 . . ?
N2 C8 C9 114.63(9) . . ?
C7 C8 N2 125.25(10) . . ?
C7 C8 C9 120.10(10) . . ?
N1 C9 C4 123.11(10) . . ?
N1 C9 C8 117.73(9) . . ?
C4 C9 C8 119.16(10) . . ?
O1 C10 N2 122.91(10) . . ?
O1 C10 C11 122.91(9) . . ?
N2 C10 C11 114.17(9) . . ?
C10 C11 H11A 108.9 . . ?
C10 C11 H11B 108.9 . . ?
C10 C11 C12 113.49(9) . . ?
H11A C11 H11B 107.7 . . ?
C12 C11 H11A 108.9 . . ?
C12 C11 H11B 108.9 . . ?
C11 C12 H12A 109.3 . . ?
C11 C12 H12B 109.3 . . ?
C11 C12 C13 111.82(9) . . ?
H12A C12 H12B 107.9 . . ?
C13 C12 H12A 109.3 . . ?
C13 C12 H12B 109.3 . . ?
C12 C13 H13A 109.1 . . ?
C12 C13 H13B 109.1 . . ?
H13A C13 H13B 107.8 . . ?
C14 C13 C12 112.62(8) . . ?
C14 C13 H13A 109.1 . . ?
C14 C13 H13B 109.1 . . ?
C15 C14 C13 121.41(9) . . ?
C19 C14 C13 120.95(9) . . ?
C19 C14 C15 117.63(10) . . ?
C14 C15 H15 119.3 . . ?
C16 C15 C14 121.33(10) . . ?
C16 C15 H15 119.3 . . ?
C15 C16 H16 120.1 . . ?
C17 C16 C15 119.88(10) . . ?
C17 C16 H16 120.1 . . ?
O2 C17 C16 118.09(10) . . ?
O2 C17 C18 122.29(10) . . ?
C16 C17 C18 119.62(10) . . ?
C17 C18 H18 120.1 . . ?
C19 C18 C17 119.77(10) . . ?
C19 C18 H18 120.1 . . ?
C14 C19 H19 119.2 . . ?
C18 C19 C14 121.64(10) . . ?
C18 C19 H19 119.2 . . ?

loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
_geom_hbond_site_symmetry_A
O2 H2 O1 0.90 1.86 2.7487(12) 171.8 3_667

_olex2_submission_special_instructions 'No special instructions were received'
