# Electronic Supplementary Material (ESI) for Chemical Communications.
# This journal is © The Royal Society of Chemistry 2016

####################################################################### 
# 
# 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_Stepherson1
_database_code_depnum_ccdc_archive 'CCDC 1438658'
_audit_update_record             
;
2015-11-24 deposited with the CCDC.
2016-01-04 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         'C18 H32 O3 Si'
_chemical_formula_sum            'C18 H32 O3 Si'
_chemical_formula_weight         324.53

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'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Si Si 0.0817 0.0704 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_symmetry_space_group_name_H-M   'C 2/c         '
_symmetry_space_group_name_Hall  '-C 2yc '
_symmetry_cell_setting           Monoclinic

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

_cell_length_a                   29.017(4)
_cell_length_b                   11.4978(17)
_cell_length_c                   12.6967(16)
_cell_angle_alpha                90
_cell_angle_beta                 111.472(8)
_cell_angle_gamma                90
_cell_volume                     3942.0(9)
_cell_formula_units_Z            8
_cell_measurement_temperature    90.0(5)
_cell_measurement_reflns_used    3436
_cell_measurement_theta_min      2.546
_cell_measurement_theta_max      26.373

_exptl_crystal_description       plate
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.08
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.094
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1424
_exptl_absorpt_coefficient_mu    0.129
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9443
_exptl_absorpt_correction_T_max  0.9898
_exptl_absorpt_process_details   'Denzo & Scalepack (Otwinowski & Minor, 1997)'

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      90.0(5)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device       'Nonius KappaCCD '
_diffrn_measurement_method       'φ and ω scans '
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            10745
_diffrn_reflns_av_R_equivalents  0.0602
_diffrn_reflns_av_sigmaI/netI    0.0877
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_theta_min         2.76
_diffrn_reflns_theta_max         26.25
_reflns_number_total             3950
_reflns_number_gt                2423
_reflns_threshold_expression     I>2σ(I)

_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction        
'Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_cell_refinement       
'Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_structure_solution    'Direct_methods (SIR, Altomare, et al., 1994)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 2012)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'

_refine_special_details          
; 
 Refinement of F² against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F², conventional R-factors R are based 
 on F, with F set to zero for negative F². The threshold expression of 
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F² 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/[σ²(Fo²)+(0.0305P)²+9.0605P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         3950
_refine_ls_number_parameters     209
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1345
_refine_ls_R_factor_gt           0.0686
_refine_ls_wR_factor_ref         0.1452
_refine_ls_wR_factor_gt          0.1192
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_restrained_S_all      1.067
_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
Si1 Si 0.58731(3) 0.16366(8) 0.46049(7) 0.0302(2) Uani 1 1 d . . .
O1 O 0.61758(7) 0.26041(17) 0.55928(16) 0.0262(5) Uani 1 1 d . . .
O2 O 0.69316(8) 0.35988(19) 0.45389(18) 0.0353(6) Uani 1 1 d . . .
C1 C 0.59887(11) 0.3687(3) 0.5703(2) 0.0280(7) Uani 1 1 d . . .
O3 O 0.75160(10) 0.2410(2) 0.6616(2) 0.0466(7) Uani 1 1 d . . .
H3O H 0.7663(15) 0.236(4) 0.620(3) 0.070 Uiso 1 1 d . . .
C15 C 0.62385(12) 0.0248(3) 0.4983(3) 0.0310(8) Uani 1 1 d . . .
C13 C 0.52378(12) 0.1432(3) 0.4616(3) 0.0479(10) Uani 1 1 d . . .
H13A H 0.5259 0.1068 0.5330 0.072 Uiso 1 1 calc R . .
H13B H 0.5046 0.0931 0.3983 0.072 Uiso 1 1 calc R . .
H13C H 0.5074 0.2189 0.4541 0.072 Uiso 1 1 calc R . .
C7 C 0.66996(12) 0.4998(3) 0.5702(3) 0.0296(7) Uani 1 1 d . . .
C11 C 0.69089(12) 0.5071(3) 0.7021(3) 0.0383(9) Uani 1 1 d . . .
H11A H 0.7156 0.5704 0.7284 0.046 Uiso 1 1 calc R . .
H11B H 0.6639 0.5221 0.7305 0.046 Uiso 1 1 calc R . .
C8 C 0.69902(11) 0.3991(3) 0.5472(3) 0.0294(7) Uani 1 1 d . . .
C5 C 0.57198(11) 0.3918(3) 0.6332(3) 0.0316(8) Uani 1 1 d . . .
C9 C 0.73799(12) 0.3581(3) 0.6577(3) 0.0338(8) Uani 1 1 d . . .
H9 H 0.7684 0.4067 0.6733 0.041 Uiso 1 1 calc R . .
C6 C 0.55711(13) 0.3073(3) 0.7049(3) 0.0436(9) Uani 1 1 d . . .
H6A H 0.5212 0.2949 0.6721 0.065 Uiso 1 1 calc R . .
H6B H 0.5662 0.3386 0.7816 0.065 Uiso 1 1 calc R . .
H6C H 0.5742 0.2331 0.7078 0.065 Uiso 1 1 calc R . .
C12 C 0.68169(14) 0.6096(3) 0.5148(3) 0.0457(9) Uani 1 1 d . . .
H12A H 0.7176 0.6202 0.5410 0.069 Uiso 1 1 calc R . .
H12B H 0.6666 0.6776 0.5360 0.069 Uiso 1 1 calc R . .
H12C H 0.6682 0.6006 0.4323 0.069 Uiso 1 1 calc R . .
C2 C 0.61372(11) 0.4744(3) 0.5200(3) 0.0295(7) Uani 1 1 d . . .
H2 H 0.6032 0.4636 0.4363 0.035 Uiso 1 1 calc R . .
C10 C 0.71509(12) 0.3890(3) 0.7440(3) 0.0373(8) Uani 1 1 d . . .
H10A H 0.7407 0.3953 0.8210 0.045 Uiso 1 1 calc R . .
H10B H 0.6902 0.3306 0.7446 0.045 Uiso 1 1 calc R . .
C14 C 0.58236(15) 0.2184(3) 0.3189(3) 0.0495(10) Uani 1 1 d . . .
H14A H 0.5581 0.2818 0.2959 0.074 Uiso 1 1 calc R . .
H14B H 0.5716 0.1551 0.2636 0.074 Uiso 1 1 calc R . .
H14C H 0.6147 0.2472 0.3227 0.074 Uiso 1 1 calc R . .
C4 C 0.56079(13) 0.5194(3) 0.6308(3) 0.0408(9) Uani 1 1 d . . .
H4A H 0.5775 0.5547 0.7064 0.049 Uiso 1 1 calc R . .
H4B H 0.5247 0.5329 0.6065 0.049 Uiso 1 1 calc R . .
C3 C 0.58121(13) 0.5704(3) 0.5442(3) 0.0380(8) Uani 1 1 d . . .
H3A H 0.6013 0.6407 0.5754 0.046 Uiso 1 1 calc R . .
H3B H 0.5537 0.5921 0.4736 0.046 Uiso 1 1 calc R . .
C16 C 0.63830(14) -0.0020(3) 0.6244(3) 0.0457(9) Uani 1 1 d . . .
H16A H 0.6084 -0.0076 0.6426 0.069 Uiso 1 1 calc R . .
H16B H 0.6595 0.0603 0.6692 0.069 Uiso 1 1 calc R . .
H16C H 0.6563 -0.0760 0.6420 0.069 Uiso 1 1 calc R . .
C17 C 0.59231(13) -0.0750(3) 0.4285(3) 0.0466(10) Uani 1 1 d . . .
H17A H 0.6121 -0.1465 0.4432 0.070 Uiso 1 1 calc R . .
H17B H 0.5812 -0.0558 0.3479 0.070 Uiso 1 1 calc R . .
H17C H 0.5634 -0.0867 0.4499 0.070 Uiso 1 1 calc R . .
C18 C 0.67148(13) 0.0341(3) 0.4717(3) 0.0439(9) Uani 1 1 d . . .
H18A H 0.6923 0.0968 0.5168 0.066 Uiso 1 1 calc R . .
H18B H 0.6628 0.0509 0.3910 0.066 Uiso 1 1 calc R . .
H18C H 0.6897 -0.0396 0.4904 0.066 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
Si1 O1 1.666(2) . ?
Si1 C14 1.860(3) . ?
Si1 C13 1.864(3) . ?
Si1 C15 1.879(3) . ?
O1 C1 1.386(4) . ?
O2 C8 1.220(3) . ?
C1 C5 1.331(4) . ?
C1 C2 1.508(4) . ?
O3 C9 1.399(4) . ?
O3 H3O 0.80(4) . ?
C15 C16 1.531(4) . ?
C15 C17 1.531(4) . ?
C15 C18 1.542(4) . ?
C13 H13A 0.9800 . ?
C13 H13B 0.9800 . ?
C13 H13C 0.9800 . ?
C7 C8 1.522(4) . ?
C7 C12 1.542(4) . ?
C7 C2 1.547(4) . ?
C7 C11 1.560(4) . ?
C11 C10 1.532(5) . ?
C11 H11A 0.9900 . ?
C11 H11B 0.9900 . ?
C8 C9 1.519(4) . ?
C5 C6 1.499(4) . ?
C5 C4 1.500(5) . ?
C9 C10 1.517(4) . ?
C9 H9 1.0000 . ?
C6 H6A 0.9800 . ?
C6 H6B 0.9800 . ?
C6 H6C 0.9800 . ?
C12 H12A 0.9800 . ?
C12 H12B 0.9800 . ?
C12 H12C 0.9800 . ?
C2 C3 1.554(4) . ?
C2 H2 1.0000 . ?
C10 H10A 0.9900 . ?
C10 H10B 0.9900 . ?
C14 H14A 0.9800 . ?
C14 H14B 0.9800 . ?
C14 H14C 0.9800 . ?
C4 C3 1.544(4) . ?
C4 H4A 0.9900 . ?
C4 H4B 0.9900 . ?
C3 H3A 0.9900 . ?
C3 H3B 0.9900 . ?
C16 H16A 0.9800 . ?
C16 H16B 0.9800 . ?
C16 H16C 0.9800 . ?
C17 H17A 0.9800 . ?
C17 H17B 0.9800 . ?
C17 H17C 0.9800 . ?
C18 H18A 0.9800 . ?
C18 H18B 0.9800 . ?
C18 H18C 0.9800 . ?

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
O1 Si1 C14 109.53(14) . . ?
O1 Si1 C13 109.21(14) . . ?
C14 Si1 C13 108.88(18) . . ?
O1 Si1 C15 106.41(12) . . ?
C14 Si1 C15 111.78(16) . . ?
C13 Si1 C15 110.98(15) . . ?
C1 O1 Si1 123.92(18) . . ?
C5 C1 O1 125.2(3) . . ?
C5 C1 C2 114.5(3) . . ?
O1 C1 C2 119.9(2) . . ?
C9 O3 H3O 105(3) . . ?
C16 C15 C17 109.3(3) . . ?
C16 C15 C18 108.6(3) . . ?
C17 C15 C18 108.6(3) . . ?
C16 C15 Si1 110.5(2) . . ?
C17 C15 Si1 109.1(2) . . ?
C18 C15 Si1 110.7(2) . . ?
Si1 C13 H13A 109.5 . . ?
Si1 C13 H13B 109.5 . . ?
H13A C13 H13B 109.5 . . ?
Si1 C13 H13C 109.5 . . ?
H13A C13 H13C 109.5 . . ?
H13B C13 H13C 109.5 . . ?
C8 C7 C12 107.8(2) . . ?
C8 C7 C2 110.6(2) . . ?
C12 C7 C2 110.0(3) . . ?
C8 C7 C11 102.8(3) . . ?
C12 C7 C11 112.4(3) . . ?
C2 C7 C11 113.0(2) . . ?
C10 C11 C7 105.9(2) . . ?
C10 C11 H11A 110.6 . . ?
C7 C11 H11A 110.6 . . ?
C10 C11 H11B 110.6 . . ?
C7 C11 H11B 110.6 . . ?
H11A C11 H11B 108.7 . . ?
O2 C8 C9 125.0(3) . . ?
O2 C8 C7 125.3(3) . . ?
C9 C8 C7 109.7(3) . . ?
C1 C5 C6 126.7(3) . . ?
C1 C5 C4 110.7(3) . . ?
C6 C5 C4 122.5(3) . . ?
O3 C9 C10 113.1(3) . . ?
O3 C9 C8 115.9(3) . . ?
C10 C9 C8 102.7(3) . . ?
O3 C9 H9 108.3 . . ?
C10 C9 H9 108.3 . . ?
C8 C9 H9 108.3 . . ?
C5 C6 H6A 109.5 . . ?
C5 C6 H6B 109.5 . . ?
H6A C6 H6B 109.5 . . ?
C5 C6 H6C 109.5 . . ?
H6A C6 H6C 109.5 . . ?
H6B C6 H6C 109.5 . . ?
C7 C12 H12A 109.5 . . ?
C7 C12 H12B 109.5 . . ?
H12A C12 H12B 109.5 . . ?
C7 C12 H12C 109.5 . . ?
H12A C12 H12C 109.5 . . ?
H12B C12 H12C 109.5 . . ?
C1 C2 C7 113.5(3) . . ?
C1 C2 C3 101.6(2) . . ?
C7 C2 C3 114.2(3) . . ?
C1 C2 H2 109.1 . . ?
C7 C2 H2 109.1 . . ?
C3 C2 H2 109.1 . . ?
C9 C10 C11 102.9(3) . . ?
C9 C10 H10A 111.2 . . ?
C11 C10 H10A 111.2 . . ?
C9 C10 H10B 111.2 . . ?
C11 C10 H10B 111.2 . . ?
H10A C10 H10B 109.1 . . ?
Si1 C14 H14A 109.5 . . ?
Si1 C14 H14B 109.5 . . ?
H14A C14 H14B 109.5 . . ?
Si1 C14 H14C 109.5 . . ?
H14A C14 H14C 109.5 . . ?
H14B C14 H14C 109.5 . . ?
C5 C4 C3 104.4(3) . . ?
C5 C4 H4A 110.9 . . ?
C3 C4 H4A 110.9 . . ?
C5 C4 H4B 110.9 . . ?
C3 C4 H4B 110.9 . . ?
H4A C4 H4B 108.9 . . ?
C4 C3 C2 106.9(3) . . ?
C4 C3 H3A 110.3 . . ?
C2 C3 H3A 110.3 . . ?
C4 C3 H3B 110.3 . . ?
C2 C3 H3B 110.3 . . ?
H3A C3 H3B 108.6 . . ?
C15 C16 H16A 109.5 . . ?
C15 C16 H16B 109.5 . . ?
H16A C16 H16B 109.5 . . ?
C15 C16 H16C 109.5 . . ?
H16A C16 H16C 109.5 . . ?
H16B C16 H16C 109.5 . . ?
C15 C17 H17A 109.5 . . ?
C15 C17 H17B 109.5 . . ?
H17A C17 H17B 109.5 . . ?
C15 C17 H17C 109.5 . . ?
H17A C17 H17C 109.5 . . ?
H17B C17 H17C 109.5 . . ?
C15 C18 H18A 109.5 . . ?
C15 C18 H18B 109.5 . . ?
H18A C18 H18B 109.5 . . ?
C15 C18 H18C 109.5 . . ?
H18A C18 H18C 109.5 . . ?
H18B C18 H18C 109.5 . . ?

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
C14 Si1 O1 C1 68.4(3) . . . . ?
C13 Si1 O1 C1 -50.7(3) . . . . ?
C15 Si1 O1 C1 -170.6(2) . . . . ?
Si1 O1 C1 C5 89.9(3) . . . . ?
Si1 O1 C1 C2 -97.6(3) . . . . ?
O1 Si1 C15 C16 46.4(3) . . . . ?
C14 Si1 C15 C16 166.0(2) . . . . ?
C13 Si1 C15 C16 -72.3(3) . . . . ?
O1 Si1 C15 C17 166.6(2) . . . . ?
C14 Si1 C15 C17 -73.8(3) . . . . ?
C13 Si1 C15 C17 47.9(3) . . . . ?
O1 Si1 C15 C18 -73.9(2) . . . . ?
C14 Si1 C15 C18 45.6(3) . . . . ?
C13 Si1 C15 C18 167.4(2) . . . . ?
C8 C7 C11 C10 -19.5(3) . . . . ?
C12 C7 C11 C10 -135.1(3) . . . . ?
C2 C7 C11 C10 99.7(3) . . . . ?
C12 C7 C8 O2 -64.0(4) . . . . ?
C2 C7 C8 O2 56.3(4) . . . . ?
C11 C7 C8 O2 177.1(3) . . . . ?
C12 C7 C8 C9 113.5(3) . . . . ?
C2 C7 C8 C9 -126.2(3) . . . . ?
C11 C7 C8 C9 -5.3(3) . . . . ?
O1 C1 C5 C6 0.8(5) . . . . ?
C2 C1 C5 C6 -172.1(3) . . . . ?
O1 C1 C5 C4 176.5(3) . . . . ?
C2 C1 C5 C4 3.6(4) . . . . ?
O2 C8 C9 O3 -30.5(4) . . . . ?
C7 C8 C9 O3 151.9(3) . . . . ?
O2 C8 C9 C10 -154.3(3) . . . . ?
C7 C8 C9 C10 28.1(3) . . . . ?
C5 C1 C2 C7 111.9(3) . . . . ?
O1 C1 C2 C7 -61.4(4) . . . . ?
C5 C1 C2 C3 -11.2(4) . . . . ?
O1 C1 C2 C3 175.6(3) . . . . ?
C8 C7 C2 C1 61.6(3) . . . . ?
C12 C7 C2 C1 -179.5(3) . . . . ?
C11 C7 C2 C1 -53.0(3) . . . . ?
C8 C7 C2 C3 177.4(3) . . . . ?
C12 C7 C2 C3 -63.7(3) . . . . ?
C11 C7 C2 C3 62.8(3) . . . . ?
O3 C9 C10 C11 -164.9(3) . . . . ?
C8 C9 C10 C11 -39.2(3) . . . . ?
C7 C11 C10 C9 37.1(3) . . . . ?
C1 C5 C4 C3 5.7(4) . . . . ?
C6 C5 C4 C3 -178.3(3) . . . . ?
C5 C4 C3 C2 -12.3(4) . . . . ?
C1 C2 C3 C4 13.8(3) . . . . ?
C7 C2 C3 C4 -108.8(3) . . . . ?

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
O3 H3O O2 0.80(4) 2.07(4) 2.790(3) 151(4) 7_656

_diffrn_measured_fraction_theta_max 0.992
_diffrn_reflns_theta_full        25.00
_diffrn_measured_fraction_theta_full 0.996
_refine_diff_density_max         0.267
_refine_diff_density_min         -0.226
_refine_diff_density_rms         0.059
# END OF CIF
_exptl_crystal_recrystallization_method 
'Re-crystallisation from solvent: Hexane/dichloromethane'
