# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2015

####################################################################### 
# 
# 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_11833_0m
_database_code_depnum_ccdc_archive 'CCDC 1429592'
_audit_update_record             
;
2015-10-06 deposited with the CCDC.
2015-12-15 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2014/7
_shelx_SHELXL_version_number     2014/7
_chemical_name_systematic        
"tert-butyl (S)-(2-(1-benzyl-5-bromo-4'-methyl-2,6'-dioxo-3',6'-dihydrospiro[indoline-3,2'-pyran]-5'-yl)phenyl)carbamate"
_chemical_name_common            'spirooxindole dihydropyranone'
_chemical_melting_point          145-146
_chemical_formula_moiety         C31H29BrN2O5
_chemical_formula_sum            'C31 H29 Br N2 O5'
_chemical_formula_weight         589.47

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'
Br Br -0.2901 2.4595 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_H-M_alt        'P 21'
_space_group_name_Hall           'P 2yb'

_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+1/2, -z'

_cell_length_a                   10.6073(4)
_cell_length_b                   9.8229(4)
_cell_length_c                   14.4413(6)
_cell_angle_alpha                90
_cell_angle_beta                 107.283(2)
_cell_angle_gamma                90
_cell_volume                     1436.76(10)
_cell_formula_units_Z            2
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    9984
_cell_measurement_theta_min      2.55
_cell_measurement_theta_max      27.67

_exptl_crystal_description       column
_exptl_crystal_colour            colourless
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_F_000             608
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.100
_exptl_absorpt_coefficient_mu    1.472
_shelx_estimated_absorpt_T_min   0.590
_shelx_estimated_absorpt_T_max   0.867
_exptl_absorpt_correction_type   multi_scan
_exptl_absorpt_correction_T_min  0.6095
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS, 2008)'
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      296(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_source                   ?
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            26335
_diffrn_reflns_av_unetI/netI     0.0449
_diffrn_reflns_av_R_equivalents  0.0320
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_theta_min         2.011
_diffrn_reflns_theta_max         28.345
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measured_fraction_theta_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_point_group_measured_fraction_full 0.999
_reflns_number_total             7077
_reflns_number_gt                5695
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.891
_reflns_Friedel_fraction_max     0.999
_reflns_Friedel_fraction_full    1.000

_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 APEX2'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_refine_special_details          
; 
 Refined as a 2-component inversion twin. 
;
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0474P)²+0.0413P] 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_abs_structure_details 
; 
 Refined as an inversion twin. 
;
_refine_ls_abs_structure_Flack   0.015(9)
_chemical_absolute_configuration rm
_refine_ls_number_reflns         7077
_refine_ls_number_parameters     353
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0358
_refine_ls_wR_factor_ref         0.0956
_refine_ls_wR_factor_gt          0.0903
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_restrained_S_all      1.049
_refine_ls_shift/su_max          0.001
_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
Br Br 0.67053(3) 0.56759(5) 0.70673(3) 0.07459(16) Uani 1 1 d . . . . .
O1 O 0.2209(2) -0.0525(3) 0.68232(19) 0.0589(6) Uani 1 1 d . . . . .
O2 O 0.2047(2) 0.2517(2) 0.70543(14) 0.0465(5) Uani 1 1 d . . . . .
O3 O 0.0149(2) 0.2705(3) 0.7336(2) 0.0714(8) Uani 1 1 d . . . . .
O4 O 0.0424(3) -0.1809(3) 0.7967(2) 0.0750(8) Uani 1 1 d . . . . .
O5 O -0.1737(2) -0.1424(4) 0.7765(2) 0.0769(9) Uani 1 1 d . . . . .
N1 N 0.4370(3) 0.0168(3) 0.73239(19) 0.0470(6) Uani 1 1 d . . . . .
N2 N -0.0689(3) -0.0632(3) 0.6709(2) 0.0527(6) Uani 1 1 d . . . . .
H2A H 0.0032 -0.0704 0.6556 0.063 Uiso 1 1 calc R U . . .
C1 C 0.4958(3) -0.1080(3) 0.7811(2) 0.0539(8) Uani 1 1 d . . . . .
H1A H 0.5716 -0.1317 0.7599 0.065 Uiso 1 1 calc R U . . .
H1B H 0.4320 -0.1813 0.7619 0.065 Uiso 1 1 calc R U . . .
C2 C 0.5388(3) -0.0965(3) 0.8896(2) 0.0508(7) Uani 1 1 d . . . . .
C3 C 0.4724(4) -0.0180(5) 0.9382(3) 0.0692(10) Uani 1 1 d . . . . .
H3A H 0.4015 0.0350 0.9035 0.083 Uiso 1 1 calc R U . . .
C4 C 0.5105(5) -0.0169(6) 1.0398(3) 0.0841(13) Uani 1 1 d . . . . .
H4A H 0.4644 0.0357 1.0724 0.101 Uiso 1 1 calc R U . . .
C5 C 0.6161(5) -0.0938(6) 1.0907(3) 0.0861(14) Uani 1 1 d . . . . .
H5A H 0.6405 -0.0949 1.1581 0.103 Uiso 1 1 calc R U . . .
C6 C 0.6852(5) -0.1684(6) 1.0434(4) 0.0894(15) Uani 1 1 d . . . . .
H6A H 0.7587 -0.2178 1.0785 0.107 Uiso 1 1 calc R U . . .
C7 C 0.6468(4) -0.1714(4) 0.9428(3) 0.0692(10) Uani 1 1 d . . . . .
H7A H 0.6938 -0.2240 0.9109 0.083 Uiso 1 1 calc R U . . .
C8 C 0.5063(3) 0.1386(3) 0.7327(2) 0.0431(6) Uani 1 1 d . . . . .
C9 C 0.6412(3) 0.1605(4) 0.7702(2) 0.0499(7) Uani 1 1 d . . . . .
H9A H 0.6979 0.0913 0.8012 0.060 Uiso 1 1 calc R U . . .
C10 C 0.6878(3) 0.2886(4) 0.7598(2) 0.0549(8) Uani 1 1 d . . . . .
H10A H 0.7779 0.3065 0.7832 0.066 Uiso 1 1 calc R U . . .
C11 C 0.6010(3) 0.3916(3) 0.7146(2) 0.0488(7) Uani 1 1 d . . . . .
C12 C 0.4661(3) 0.3690(3) 0.6772(2) 0.0457(6) Uani 1 1 d . . . . .
H12A H 0.4088 0.4383 0.6471 0.055 Uiso 1 1 calc R U . . .
C13 C 0.4205(3) 0.2400(3) 0.6864(2) 0.0399(6) Uani 1 1 d . . . . .
C14 C 0.2827(3) 0.1836(3) 0.6534(2) 0.0397(6) Uani 1 1 d . . . . .
C15 C 0.3052(3) 0.0338(3) 0.6894(2) 0.0422(6) Uani 1 1 d . . . . .
C16 C 0.2159(3) 0.1899(3) 0.5452(2) 0.0465(7) Uani 1 1 d . . . . .
H16A H 0.2229 0.2816 0.5224 0.056 Uiso 1 1 calc R U . . .
H16B H 0.2612 0.1293 0.5126 0.056 Uiso 1 1 calc R U . . .
C17 C 0.0733(3) 0.1504(3) 0.5193(2) 0.0440(6) Uani 1 1 d . . . . .
C18 C 0.0067(3) 0.1683(3) 0.5837(2) 0.0412(6) Uani 1 1 d . . . . .
C19 C 0.0719(3) 0.2313(3) 0.6796(2) 0.0455(7) Uani 1 1 d . . . . .
C20 C 0.0146(4) 0.0891(5) 0.4203(2) 0.0672(11) Uani 1 1 d . . . . .
H20A H 0.0803 0.0863 0.3868 0.101 Uiso 1 1 calc R U . . .
H20B H -0.0153 -0.0016 0.4268 0.101 Uiso 1 1 calc R U . . .
H20C H -0.0587 0.1436 0.3842 0.101 Uiso 1 1 calc R U . . .
C21 C -0.1351(3) 0.1317(3) 0.5665(2) 0.0449(7) Uani 1 1 d . . . . .
C22 C -0.2339(3) 0.2110(4) 0.5056(3) 0.0607(9) Uani 1 1 d . . . . .
H22A H -0.2112 0.2868 0.4755 0.073 Uiso 1 1 calc R U . . .
C23 C -0.3652(3) 0.1787(5) 0.4892(3) 0.0671(11) Uani 1 1 d . . . . .
H23A H -0.4306 0.2336 0.4495 0.080 Uiso 1 1 calc R U . . .
C24 C -0.3986(3) 0.0657(5) 0.5317(2) 0.0595(8) Uani 1 1 d . . . . .
H24A H -0.4872 0.0438 0.5203 0.071 Uiso 1 1 calc R U . . .
C25 C -0.3027(3) -0.0168(4) 0.5913(2) 0.0507(7) Uani 1 1 d . . . . .
H25A H -0.3269 -0.0946 0.6185 0.061 Uiso 1 1 calc R U . . .
C26 C -0.1701(3) 0.0169(3) 0.6105(2) 0.0428(6) Uani 1 1 d . . . . .
C27 C -0.0757(3) -0.1300(3) 0.7515(2) 0.0507(7) Uani 1 1 d . . . . .
C28 C 0.0766(4) -0.2454(5) 0.8914(3) 0.0694(11) Uani 1 1 d . . . . .
C29 C 0.2193(5) -0.2754(8) 0.9132(5) 0.131(3) Uani 1 1 d . . . . .
H29A H 0.2325 -0.3391 0.8665 0.196 Uiso 1 1 calc R U . . .
H29B H 0.2662 -0.1928 0.9101 0.196 Uiso 1 1 calc R U . . .
H29C H 0.2517 -0.3138 0.9770 0.196 Uiso 1 1 calc R U . . .
C30 C 0.0520(12) -0.1500(17) 0.9597(5) 0.256(9) Uani 1 1 d . . . . .
H30A H 0.0741 -0.1912 1.0228 0.384 Uiso 1 1 calc R U . . .
H30B H 0.1050 -0.0702 0.9622 0.384 Uiso 1 1 calc R U . . .
H30C H -0.0397 -0.1252 0.9397 0.384 Uiso 1 1 calc R U . . .
C31 C 0.0020(8) -0.3737(9) 0.8851(7) 0.194(5) Uani 1 1 d . . . . .
H31A H 0.0224 -0.4330 0.8386 0.292 Uiso 1 1 calc R U . . .
H31B H 0.0261 -0.4172 0.9474 0.292 Uiso 1 1 calc R U . . .
H31C H -0.0909 -0.3544 0.8650 0.292 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
Br C11 1.896(3) . ?
O1 C15 1.214(4) . ?
O2 C19 1.360(4) . ?
O2 C14 1.437(4) . ?
O3 C19 1.185(4) . ?
O4 C27 1.326(4) . ?
O4 C28 1.452(5) . ?
O5 C27 1.204(4) . ?
N1 C15 1.361(4) . ?
N1 C8 1.403(4) . ?
N1 C1 1.459(4) . ?
N2 C27 1.357(5) . ?
N2 C26 1.405(4) . ?
N2 H2A 0.8600 . ?
C1 C2 1.499(5) . ?
C1 H1A 0.9700 . ?
C1 H1B 0.9700 . ?
C2 C3 1.370(6) . ?
C2 C7 1.386(5) . ?
C3 C4 1.401(6) . ?
C3 H3A 0.9300 . ?
C4 C5 1.370(7) . ?
C4 H4A 0.9300 . ?
C5 C6 1.356(8) . ?
C5 H5A 0.9300 . ?
C6 C7 1.387(7) . ?
C6 H6A 0.9300 . ?
C7 H7A 0.9300 . ?
C8 C13 1.381(4) . ?
C8 C9 1.388(4) . ?
C9 C10 1.376(5) . ?
C9 H9A 0.9300 . ?
C10 C11 1.393(5) . ?
C10 H10A 0.9300 . ?
C11 C12 1.389(4) . ?
C12 C13 1.377(5) . ?
C12 H12A 0.9300 . ?
C13 C14 1.502(4) . ?
C14 C16 1.513(4) . ?
C14 C15 1.556(4) . ?
C16 C17 1.498(4) . ?
C16 H16A 0.9700 . ?
C16 H16B 0.9700 . ?
C17 C18 1.336(4) . ?
C17 C20 1.504(4) . ?
C18 C19 1.486(4) . ?
C18 C21 1.494(4) . ?
C20 H20A 0.9600 . ?
C20 H20B 0.9600 . ?
C20 H20C 0.9600 . ?
C21 C22 1.389(4) . ?
C21 C26 1.398(4) . ?
C22 C23 1.378(5) . ?
C22 H22A 0.9300 . ?
C23 C24 1.365(6) . ?
C23 H23A 0.9300 . ?
C24 C25 1.382(5) . ?
C24 H24A 0.9300 . ?
C25 C26 1.391(4) . ?
C25 H25A 0.9300 . ?
C28 C30 1.440(11) . ?
C28 C31 1.476(8) . ?
C28 C29 1.481(7) . ?
C29 H29A 0.9600 . ?
C29 H29B 0.9600 . ?
C29 H29C 0.9600 . ?
C30 H30A 0.9600 . ?
C30 H30B 0.9600 . ?
C30 H30C 0.9600 . ?
C31 H31A 0.9600 . ?
C31 H31B 0.9600 . ?
C31 H31C 0.9600 . ?

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
C19 O2 C14 119.9(2) . . ?
C27 O4 C28 124.3(3) . . ?
C15 N1 C8 111.3(2) . . ?
C15 N1 C1 123.8(3) . . ?
C8 N1 C1 124.5(2) . . ?
C27 N2 C26 125.3(3) . . ?
C27 N2 H2A 117.3 . . ?
C26 N2 H2A 117.3 . . ?
N1 C1 C2 113.2(3) . . ?
N1 C1 H1A 108.9 . . ?
C2 C1 H1A 108.9 . . ?
N1 C1 H1B 108.9 . . ?
C2 C1 H1B 108.9 . . ?
H1A C1 H1B 107.8 . . ?
C3 C2 C7 118.7(3) . . ?
C3 C2 C1 122.3(3) . . ?
C7 C2 C1 118.9(3) . . ?
C2 C3 C4 120.6(4) . . ?
C2 C3 H3A 119.7 . . ?
C4 C3 H3A 119.7 . . ?
C5 C4 C3 119.5(5) . . ?
C5 C4 H4A 120.2 . . ?
C3 C4 H4A 120.2 . . ?
C6 C5 C4 120.4(4) . . ?
C6 C5 H5A 119.8 . . ?
C4 C5 H5A 119.8 . . ?
C5 C6 C7 120.3(4) . . ?
C5 C6 H6A 119.9 . . ?
C7 C6 H6A 119.9 . . ?
C2 C7 C6 120.5(4) . . ?
C2 C7 H7A 119.8 . . ?
C6 C7 H7A 119.8 . . ?
C13 C8 C9 122.1(3) . . ?
C13 C8 N1 110.1(2) . . ?
C9 C8 N1 127.7(3) . . ?
C10 C9 C8 117.5(3) . . ?
C10 C9 H9A 121.2 . . ?
C8 C9 H9A 121.2 . . ?
C9 C10 C11 120.4(3) . . ?
C9 C10 H10A 119.8 . . ?
C11 C10 H10A 119.8 . . ?
C12 C11 C10 121.8(3) . . ?
C12 C11 Br 119.8(3) . . ?
C10 C11 Br 118.4(2) . . ?
C13 C12 C11 117.4(3) . . ?
C13 C12 H12A 121.3 . . ?
C11 C12 H12A 121.3 . . ?
C12 C13 C8 120.7(3) . . ?
C12 C13 C14 130.2(3) . . ?
C8 C13 C14 109.1(3) . . ?
O2 C14 C13 108.6(2) . . ?
O2 C14 C16 110.8(2) . . ?
C13 C14 C16 115.2(2) . . ?
O2 C14 C15 108.7(2) . . ?
C13 C14 C15 101.8(2) . . ?
C16 C14 C15 111.2(2) . . ?
O1 C15 N1 125.8(3) . . ?
O1 C15 C14 126.6(3) . . ?
N1 C15 C14 107.6(2) . . ?
C17 C16 C14 112.1(2) . . ?
C17 C16 H16A 109.2 . . ?
C14 C16 H16A 109.2 . . ?
C17 C16 H16B 109.2 . . ?
C14 C16 H16B 109.2 . . ?
H16A C16 H16B 107.9 . . ?
C18 C17 C16 119.7(3) . . ?
C18 C17 C20 124.0(3) . . ?
C16 C17 C20 116.3(3) . . ?
C17 C18 C19 120.5(3) . . ?
C17 C18 C21 124.5(3) . . ?
C19 C18 C21 115.0(3) . . ?
O3 C19 O2 117.4(3) . . ?
O3 C19 C18 124.2(3) . . ?
O2 C19 C18 118.3(3) . . ?
C17 C20 H20A 109.5 . . ?
C17 C20 H20B 109.5 . . ?
H20A C20 H20B 109.5 . . ?
C17 C20 H20C 109.5 . . ?
H20A C20 H20C 109.5 . . ?
H20B C20 H20C 109.5 . . ?
C22 C21 C26 119.2(3) . . ?
C22 C21 C18 120.3(3) . . ?
C26 C21 C18 120.5(3) . . ?
C23 C22 C21 120.9(4) . . ?
C23 C22 H22A 119.5 . . ?
C21 C22 H22A 119.5 . . ?
C24 C23 C22 119.6(3) . . ?
C24 C23 H23A 120.2 . . ?
C22 C23 H23A 120.2 . . ?
C23 C24 C25 121.0(3) . . ?
C23 C24 H24A 119.5 . . ?
C25 C24 H24A 119.5 . . ?
C24 C25 C26 119.9(3) . . ?
C24 C25 H25A 120.0 . . ?
C26 C25 H25A 120.0 . . ?
C25 C26 C21 119.4(3) . . ?
C25 C26 N2 122.1(3) . . ?
C21 C26 N2 118.5(3) . . ?
O5 C27 O4 126.0(3) . . ?
O5 C27 N2 125.2(3) . . ?
O4 C27 N2 108.8(3) . . ?
C30 C28 O4 108.4(6) . . ?
C30 C28 C31 113.3(9) . . ?
O4 C28 C31 109.5(4) . . ?
C30 C28 C29 111.5(6) . . ?
O4 C28 C29 103.9(4) . . ?
C31 C28 C29 109.8(6) . . ?
C28 C29 H29A 109.5 . . ?
C28 C29 H29B 109.5 . . ?
H29A C29 H29B 109.5 . . ?
C28 C29 H29C 109.5 . . ?
H29A C29 H29C 109.5 . . ?
H29B C29 H29C 109.5 . . ?
C28 C30 H30A 109.5 . . ?
C28 C30 H30B 109.5 . . ?
H30A C30 H30B 109.5 . . ?
C28 C30 H30C 109.5 . . ?
H30A C30 H30C 109.5 . . ?
H30B C30 H30C 109.5 . . ?
C28 C31 H31A 109.5 . . ?
C28 C31 H31B 109.5 . . ?
H31A C31 H31B 109.5 . . ?
C28 C31 H31C 109.5 . . ?
H31A C31 H31C 109.5 . . ?
H31B C31 H31C 109.5 . . ?

_refine_diff_density_max         0.436
_refine_diff_density_min         -0.365
_refine_diff_density_rms         0.040


_exptl_crystal_recrystallization_method 
'Re-crystallisation from solvent: hexane/dichloromethane'
_chemical_compound_source        Synthezied
