# Electronic Supplementary Material (ESI) for Chemical Science.
# This journal is © The Royal Society of Chemistry 2017

####################################################################### 
# 
# 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_G402
_database_code_depnum_ccdc_archive 'CCDC 1506724'
_audit_update_record             
;
2016-09-26 deposited with the CCDC.
2017-04-27 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2014/7
_shelx_SHELXL_version_number     2014/7
_chemical_name_systematic        ?
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C20 H24 N2'
_chemical_formula_weight         292.41

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'

_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 21/n'
_space_group_name_Hall           '-P 2yn'

_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+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x-1/2, -y-1/2, z-1/2'

_cell_length_a                   16.6451(18)
_cell_length_b                   5.8536(6)
_cell_length_c                   19.416(2)
_cell_angle_alpha                90
_cell_angle_beta                 113.818(5)
_cell_angle_gamma                90
_cell_volume                     1730.6(3)
_cell_formula_units_Z            4
_cell_measurement_temperature    100(2)
_cell_measurement_reflns_used    2345
_cell_measurement_theta_min      2.96
_cell_measurement_theta_max      65.90

_exptl_crystal_description       Needle
_exptl_crystal_colour            Colourless
_exptl_crystal_density_meas      'Not Measured'
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_density_diffrn    1.122
_exptl_crystal_F_000             632
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.594
_exptl_crystal_size_mid          0.046
_exptl_crystal_size_min          0.043
_exptl_absorpt_coefficient_mu    0.499
_shelx_estimated_absorpt_T_min   0.756
_shelx_estimated_absorpt_T_max   0.979
_exptl_absorpt_correction_type   Multi-scan
_exptl_absorpt_correction_T_min  0.4273
_exptl_absorpt_correction_T_max  0.7528
_exptl_absorpt_process_details   'Sadabs, (Sheldrick 2012)'
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      100(2)
_diffrn_radiation_wavelength     1.54178
_diffrn_radiation_type           CuK\a
_diffrn_source                   ?
_diffrn_measurement_device_type  'Bruker D8 venture'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            14377
_diffrn_reflns_av_unetI/netI     0.0867
_diffrn_reflns_av_R_equivalents  0.1171
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_theta_min         2.963
_diffrn_reflns_theta_max         66.678
_diffrn_reflns_theta_full        66.678
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measured_fraction_theta_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_point_group_measured_fraction_full 0.995
_reflns_number_total             3030
_reflns_number_gt                1837
_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_bruker_data_scaling   'SADABS V2012/1 (Bruker AXS Inc.)'
_computing_cell_refinement       'APEX3 v2016.1-0 (Bruker AXS)'
_computing_data_collection       'APEX3 (Bruker AXS)'
_computing_data_reduction        'SAINT V8.32B (Bruker AXS Inc., 2014)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL--2014 (Sheldrick 2014)'
_computing_structure_solution    'SHELXT--(Sheldrick 2015)'
_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)+(0.1405P)²] 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         3030
_refine_ls_number_parameters     202
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1297
_refine_ls_R_factor_gt           0.0794
_refine_ls_wR_factor_ref         0.2432
_refine_ls_wR_factor_gt          0.1965
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_restrained_S_all      1.032
_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 0.5124(2) 1.1160(6) 0.58688(18) 0.0584(9) Uani 1 1 d . . . . .
N2 N 0.3483(2) 0.5570(7) 0.46844(18) 0.0656(10) Uani 1 1 d . . . . .
C1 C 0.5623(2) 0.6306(7) 0.73293(18) 0.0470(8) Uani 1 1 d . . . . .
H1 H 0.5725 0.7978 0.7434 0.056 Uiso 1 1 calc R U . . .
C2 C 0.6418(2) 0.5313(7) 0.7231(2) 0.0520(9) Uani 1 1 d . . . . .
H2A H 0.6283 0.3751 0.7020 0.062 Uiso 1 1 calc R U . . .
H2B H 0.6564 0.6270 0.6876 0.062 Uiso 1 1 calc R U . . .
C3 C 0.7194(2) 0.5245(7) 0.7991(2) 0.0535(9) Uani 1 1 d . . . . .
H3A H 0.7299 0.6791 0.8217 0.064 Uiso 1 1 calc R U . . .
H3B H 0.7728 0.4761 0.7923 0.064 Uiso 1 1 calc R U . . .
C4 C 0.7013(2) 0.3587(8) 0.8513(2) 0.0590(10) Uani 1 1 d . . . . .
H4A H 0.7048 0.2004 0.8347 0.071 Uiso 1 1 calc R U . . .
H4B H 0.7472 0.3768 0.9029 0.071 Uiso 1 1 calc R U . . .
C5 C 0.6118(2) 0.3953(6) 0.85289(19) 0.0471(8) Uani 1 1 d . . . . .
C6 C 0.5518(2) 0.5200(6) 0.79923(18) 0.0470(9) Uani 1 1 d . . . . .
H6 H 0.4971 0.5416 0.8030 0.056 Uiso 1 1 calc R U . . .
C7 C 0.5961(2) 0.2844(6) 0.91770(18) 0.0477(8) Uani 1 1 d . . . . .
C8 C 0.6603(3) 0.3865(8) 0.9938(2) 0.0631(11) Uani 1 1 d . . . . .
H8A H 0.6493 0.3168 1.0350 0.095 Uiso 1 1 calc R U . . .
H8B H 0.6513 0.5520 0.9937 0.095 Uiso 1 1 calc R U . . .
H8C H 0.7209 0.3552 1.0006 0.095 Uiso 1 1 calc R U . . .
C9 C 0.6106(3) 0.0273(7) 0.9182(2) 0.0597(10) Uani 1 1 d . . . . .
H9A H 0.5687 -0.0389 0.8710 0.090 Uiso 1 1 calc R U . . .
H9B H 0.6017 -0.0414 0.9606 0.090 Uiso 1 1 calc R U . . .
H9C H 0.6706 -0.0033 0.9233 0.090 Uiso 1 1 calc R U . . .
C10 C 0.5025(2) 0.3275(8) 0.9120(2) 0.0594(10) Uani 1 1 d . . . . .
H10A H 0.4599 0.2643 0.8646 0.089 Uiso 1 1 calc R U . . .
H10B H 0.4928 0.4922 0.9135 0.089 Uiso 1 1 calc R U . . .
H10C H 0.4952 0.2534 0.9544 0.089 Uiso 1 1 calc R U . . .
C11 C 0.4747(2) 0.6002(6) 0.66230(18) 0.0459(8) Uani 1 1 d . . . . .
H11 H 0.4618 0.4327 0.6569 0.055 Uiso 1 1 calc R U . . .
C12 C 0.4851(2) 0.6784(6) 0.58938(18) 0.0471(8) Uani 1 1 d . . . . .
H12 H 0.5372 0.5973 0.5879 0.057 Uiso 1 1 calc R U . . .
C13 C 0.5006(2) 0.9254(7) 0.58740(19) 0.0493(9) Uani 1 1 d . . . . .
C14 C 0.4074(2) 0.6112(7) 0.5212(2) 0.0524(9) Uani 1 1 d . . . . .
C15 C 0.3963(2) 0.7155(6) 0.66865(17) 0.0433(8) Uani 1 1 d . . . . .
C16 C 0.4020(2) 0.9278(7) 0.70202(18) 0.0481(9) Uani 1 1 d . . . . .
H16 H 0.4566 1.0064 0.7212 0.058 Uiso 1 1 calc R U . . .
C17 C 0.3293(2) 1.0275(7) 0.70783(19) 0.0495(9) Uani 1 1 d . . . . .
H17 H 0.3340 1.1731 0.7308 0.059 Uiso 1 1 calc R U . . .
C18 C 0.2497(2) 0.9125(7) 0.67981(19) 0.0501(9) Uani 1 1 d . . . . .
H18 H 0.1998 0.9793 0.6840 0.060 Uiso 1 1 calc R U . . .
C19 C 0.2423(2) 0.7027(7) 0.64605(18) 0.0509(9) Uani 1 1 d . . . . .
H19 H 0.1876 0.6249 0.6267 0.061 Uiso 1 1 calc R U . . .
C20 C 0.3154(2) 0.6057(6) 0.64044(18) 0.0476(8) Uani 1 1 d . . . . .
H20 H 0.3100 0.4610 0.6168 0.057 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 C13 1.133(5) . ?
N2 C14 1.141(5) . ?
C1 C6 1.513(5) . ?
C1 C2 1.527(5) . ?
C1 C11 1.556(4) . ?
C1 H1 1.0000 . ?
C2 C3 1.519(5) . ?
C2 H2A 0.9900 . ?
C2 H2B 0.9900 . ?
C3 C4 1.519(5) . ?
C3 H3A 0.9900 . ?
C3 H3B 0.9900 . ?
C4 C5 1.518(5) . ?
C4 H4A 0.9900 . ?
C4 H4B 0.9900 . ?
C5 C6 1.332(5) . ?
C5 C7 1.529(5) . ?
C6 H6 0.9500 . ?
C7 C9 1.524(5) . ?
C7 C10 1.537(5) . ?
C7 C8 1.551(5) . ?
C8 H8A 0.9800 . ?
C8 H8B 0.9800 . ?
C8 H8C 0.9800 . ?
C9 H9A 0.9800 . ?
C9 H9B 0.9800 . ?
C9 H9C 0.9800 . ?
C10 H10A 0.9800 . ?
C10 H10B 0.9800 . ?
C10 H10C 0.9800 . ?
C11 C15 1.518(5) . ?
C11 C12 1.562(5) . ?
C11 H11 1.0000 . ?
C12 C13 1.472(6) . ?
C12 C14 1.482(5) . ?
C12 H12 1.0000 . ?
C15 C16 1.387(5) . ?
C15 C20 1.390(5) . ?
C16 C17 1.389(5) . ?
C16 H16 0.9500 . ?
C17 C18 1.387(5) . ?
C17 H17 0.9500 . ?
C18 C19 1.374(5) . ?
C18 H18 0.9500 . ?
C19 C20 1.386(5) . ?
C19 H19 0.9500 . ?
C20 H20 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
C6 C1 C2 110.3(3) . . ?
C6 C1 C11 108.2(3) . . ?
C2 C1 C11 113.4(3) . . ?
C6 C1 H1 108.3 . . ?
C2 C1 H1 108.3 . . ?
C11 C1 H1 108.3 . . ?
C3 C2 C1 109.1(3) . . ?
C3 C2 H2A 109.9 . . ?
C1 C2 H2A 109.9 . . ?
C3 C2 H2B 109.9 . . ?
C1 C2 H2B 109.9 . . ?
H2A C2 H2B 108.3 . . ?
C2 C3 C4 110.2(3) . . ?
C2 C3 H3A 109.6 . . ?
C4 C3 H3A 109.6 . . ?
C2 C3 H3B 109.6 . . ?
C4 C3 H3B 109.6 . . ?
H3A C3 H3B 108.1 . . ?
C5 C4 C3 112.6(3) . . ?
C5 C4 H4A 109.1 . . ?
C3 C4 H4A 109.1 . . ?
C5 C4 H4B 109.1 . . ?
C3 C4 H4B 109.1 . . ?
H4A C4 H4B 107.8 . . ?
C6 C5 C4 119.6(3) . . ?
C6 C5 C7 123.6(3) . . ?
C4 C5 C7 116.9(3) . . ?
C5 C6 C1 126.3(3) . . ?
C5 C6 H6 116.8 . . ?
C1 C6 H6 116.8 . . ?
C9 C7 C5 110.2(3) . . ?
C9 C7 C10 108.4(3) . . ?
C5 C7 C10 112.1(3) . . ?
C9 C7 C8 109.1(3) . . ?
C5 C7 C8 109.8(3) . . ?
C10 C7 C8 107.1(3) . . ?
C7 C8 H8A 109.5 . . ?
C7 C8 H8B 109.5 . . ?
H8A C8 H8B 109.5 . . ?
C7 C8 H8C 109.5 . . ?
H8A C8 H8C 109.5 . . ?
H8B C8 H8C 109.5 . . ?
C7 C9 H9A 109.5 . . ?
C7 C9 H9B 109.5 . . ?
H9A C9 H9B 109.5 . . ?
C7 C9 H9C 109.5 . . ?
H9A C9 H9C 109.5 . . ?
H9B C9 H9C 109.5 . . ?
C7 C10 H10A 109.5 . . ?
C7 C10 H10B 109.5 . . ?
H10A C10 H10B 109.5 . . ?
C7 C10 H10C 109.5 . . ?
H10A C10 H10C 109.5 . . ?
H10B C10 H10C 109.5 . . ?
C15 C11 C1 114.1(3) . . ?
C15 C11 C12 110.9(3) . . ?
C1 C11 C12 111.0(3) . . ?
C15 C11 H11 106.8 . . ?
C1 C11 H11 106.8 . . ?
C12 C11 H11 106.8 . . ?
C13 C12 C14 109.7(3) . . ?
C13 C12 C11 113.4(3) . . ?
C14 C12 C11 110.8(3) . . ?
C13 C12 H12 107.6 . . ?
C14 C12 H12 107.6 . . ?
C11 C12 H12 107.6 . . ?
N1 C13 C12 178.9(4) . . ?
N2 C14 C12 179.0(4) . . ?
C16 C15 C20 118.2(3) . . ?
C16 C15 C11 122.5(3) . . ?
C20 C15 C11 119.4(3) . . ?
C15 C16 C17 121.1(3) . . ?
C15 C16 H16 119.5 . . ?
C17 C16 H16 119.5 . . ?
C18 C17 C16 119.4(4) . . ?
C18 C17 H17 120.3 . . ?
C16 C17 H17 120.3 . . ?
C19 C18 C17 120.5(3) . . ?
C19 C18 H18 119.7 . . ?
C17 C18 H18 119.7 . . ?
C18 C19 C20 119.4(3) . . ?
C18 C19 H19 120.3 . . ?
C20 C19 H19 120.3 . . ?
C19 C20 C15 121.4(4) . . ?
C19 C20 H20 119.3 . . ?
C15 C20 H20 119.3 . . ?

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
C6 C1 C2 C3 -46.7(4) . . . . ?
C11 C1 C2 C3 -168.2(3) . . . . ?
C1 C2 C3 C4 65.3(4) . . . . ?
C2 C3 C4 C5 -48.6(5) . . . . ?
C3 C4 C5 C6 15.6(5) . . . . ?
C3 C4 C5 C7 -164.3(3) . . . . ?
C4 C5 C6 C1 1.4(6) . . . . ?
C7 C5 C6 C1 -178.8(3) . . . . ?
C2 C1 C6 C5 14.8(5) . . . . ?
C11 C1 C6 C5 139.4(4) . . . . ?
C6 C5 C7 C9 122.6(4) . . . . ?
C4 C5 C7 C9 -57.5(4) . . . . ?
C6 C5 C7 C10 1.8(5) . . . . ?
C4 C5 C7 C10 -178.3(3) . . . . ?
C6 C5 C7 C8 -117.1(4) . . . . ?
C4 C5 C7 C8 62.8(4) . . . . ?
C6 C1 C11 C15 62.2(4) . . . . ?
C2 C1 C11 C15 -175.1(3) . . . . ?
C6 C1 C11 C12 -171.7(3) . . . . ?
C2 C1 C11 C12 -49.0(4) . . . . ?
C15 C11 C12 C13 61.5(4) . . . . ?
C1 C11 C12 C13 -66.4(4) . . . . ?
C15 C11 C12 C14 -62.4(4) . . . . ?
C1 C11 C12 C14 169.8(3) . . . . ?
C1 C11 C15 C16 39.3(4) . . . . ?
C12 C11 C15 C16 -86.9(4) . . . . ?
C1 C11 C15 C20 -140.5(3) . . . . ?
C12 C11 C15 C20 93.4(4) . . . . ?
C20 C15 C16 C17 0.6(5) . . . . ?
C11 C15 C16 C17 -179.2(3) . . . . ?
C15 C16 C17 C18 0.0(5) . . . . ?
C16 C17 C18 C19 -0.5(5) . . . . ?
C17 C18 C19 C20 0.3(5) . . . . ?
C18 C19 C20 C15 0.4(5) . . . . ?
C16 C15 C20 C19 -0.8(5) . . . . ?
C11 C15 C20 C19 179.0(3) . . . . ?

_refine_diff_density_max         0.323
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.072



