# Electronic Supplementary Material (ESI) for ChemComm.
# 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. 
# 
#######################################################################

data_shelx
_database_code_depnum_ccdc_archive 'CCDC 1822336'
_audit_update_record             
;
2018-02-06 deposited with the CCDC.
2018-03-14 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2016/4
_shelx_SHELXL_version_number     2016/4
_chemical_name_systematic        ?
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C23 H19 N3 O3 S'
_chemical_formula_weight         417.47

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'
S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_H-M_alt        'P 21 21 21'
_space_group_name_Hall           'P 2ac 2ab'

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

_cell_length_a                   8.5975(2)
_cell_length_b                   12.0983(2)
_cell_length_c                   19.9600(4)
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_volume                     2076.14(7)
_cell_formula_units_Z            4
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    5948
_cell_measurement_theta_min      2.907
_cell_measurement_theta_max      27.863

_exptl_crystal_description       needle
_exptl_crystal_colour            yellow
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.336
_exptl_crystal_F_000             872
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.800
_exptl_crystal_size_mid          0.400
_exptl_crystal_size_min          0.200
_exptl_absorpt_coefficient_mu    0.186
_shelx_estimated_absorpt_T_min   0.866
_shelx_estimated_absorpt_T_max   0.964
_exptl_absorpt_correction_type   ?
_exptl_absorpt_correction_T_min  ?
_exptl_absorpt_correction_T_max  ?
_exptl_absorpt_process_details   ?
_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            12106
_diffrn_reflns_av_unetI/netI     0.0303
_diffrn_reflns_av_R_equivalents  0.0220
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_theta_min         2.907
_diffrn_reflns_theta_max         27.863
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measured_fraction_theta_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_point_group_measured_fraction_full 0.995
_reflns_number_total             4933
_reflns_number_gt                4563
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.763
_reflns_Friedel_fraction_max     0.998
_reflns_Friedel_fraction_full    0.997

_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       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    ?
_computing_structure_refinement  'SHELXL-2016/4 (Sheldrick, 2016)'
_computing_molecular_graphics    ?
_computing_publication_material  ?
_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)+(0.0647P)²+0.7048P] 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 
;
 Flack x determined using 1836 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.04(3)
_chemical_absolute_configuration ?
_refine_ls_number_reflns         4933
_refine_ls_number_parameters     271
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0449
_refine_ls_R_factor_gt           0.0408
_refine_ls_wR_factor_ref         0.1139
_refine_ls_wR_factor_gt          0.1107
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_restrained_S_all      1.057
_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
S1 S 0.18515(9) 0.46835(8) 0.14532(4) 0.0355(2) Uani 1 1 d . . . . .
O3 O 0.7365(2) 0.57465(17) -0.03539(9) 0.0258(4) Uani 1 1 d . . . . .
O1 O 0.7592(2) 0.48754(17) 0.19706(10) 0.0275(4) Uani 1 1 d . . . . .
O2 O 0.6400(2) 0.59039(19) 0.27627(10) 0.0316(5) Uani 1 1 d . . . . .
N1 N 0.4191(3) 0.6426(2) 0.19828(12) 0.0238(5) Uani 1 1 d . . . . .
N3 N 0.5666(2) 0.59412(17) 0.05305(11) 0.0177(4) Uani 1 1 d . . . . .
C3 C 0.2451(3) 0.54688(17) 0.02443(13) 0.0161(5) Uani 1 1 d . . . . .
H3 H 0.295135 0.575437 -0.013077 0.019 Uiso 1 1 calc R U . . .
C18 C 0.6547(3) 0.4198(2) 0.03496(13) 0.0211(5) Uani 1 1 d . . . . .
C10 C 0.5503(3) 0.7138(2) 0.05012(13) 0.0200(5) Uani 1 1 d . . . . .
H10A H 0.443378 0.733319 0.060082 0.024 Uiso 1 1 calc R U . . .
H10B H 0.572868 0.738512 0.004918 0.024 Uiso 1 1 calc R U . . .
N2 N 0.3360(3) 0.7059(2) 0.21851(14) 0.0360(6) Uani 1 1 d . . . . .
C5 C 0.4874(3) 0.5264(2) 0.10382(12) 0.0171(5) Uani 1 1 d . . . . .
C16 C 0.8119(3) 0.7435(2) 0.10415(14) 0.0238(5) Uani 1 1 d . . . . .
H16 H 0.849039 0.683498 0.079818 0.029 Uiso 1 1 calc R U . . .
C17 C 0.6608(3) 0.5360(2) 0.01124(12) 0.0193(5) Uani 1 1 d . . . . .
C11 C 0.6570(3) 0.7739(2) 0.09863(13) 0.0199(5) Uani 1 1 d . . . . .
C6 C 0.5150(3) 0.5674(2) 0.17449(13) 0.0200(5) Uani 1 1 d . . . . .
C15 C 0.9120(3) 0.8018(3) 0.14567(16) 0.0324(6) Uani 1 1 d . . . . .
H15 H 1.015748 0.780828 0.149133 0.039 Uiso 1 1 calc R U . . .
C12 C 0.6028(3) 0.8643(2) 0.13490(15) 0.0270(6) Uani 1 1 d . . . . .
H12 H 0.499305 0.885914 0.131219 0.032 Uiso 1 1 calc R U . . .
C20 C 0.5354(4) 0.3143(2) 0.12373(16) 0.0277(6) Uani 1 1 d . . . . .
H20 H 0.469365 0.309534 0.160514 0.033 Uiso 1 1 calc R U . . .
C19 C 0.5592(3) 0.4134(2) 0.09028(13) 0.0197(5) Uani 1 1 d . . . . .
C14 C 0.8572(4) 0.8912(3) 0.18193(17) 0.0367(7) Uani 1 1 d . . . . .
H14 H 0.923864 0.930333 0.209907 0.044 Uiso 1 1 calc R U . . .
C4 C 0.3145(3) 0.5213(2) 0.08827(12) 0.0192(5) Uani 1 1 d . . . . .
C7 C 0.6523(3) 0.5435(2) 0.21527(13) 0.0217(5) Uani 1 1 d . . . . .
C23 C 0.7344(4) 0.3278(2) 0.01107(16) 0.0296(6) Uani 1 1 d . . . . .
H23 H 0.799886 0.332652 -0.025902 0.036 Uiso 1 1 calc R U . . .
C21 C 0.6150(4) 0.2222(2) 0.09972(18) 0.0355(7) Uani 1 1 d . . . . .
H21 H 0.602536 0.154624 0.121279 0.043 Uiso 1 1 calc R U . . .
C2 C 0.0791(3) 0.5188(2) 0.03049(15) 0.0240(5) Uani 1 1 d . . . . .
H2 H 0.009032 0.529297 -0.004435 0.029 Uiso 1 1 calc R U . . .
C13 C 0.7026(4) 0.9220(3) 0.17638(15) 0.0341(7) Uani 1 1 d . . . . .
H13 H 0.665647 0.982063 0.200752 0.041 Uiso 1 1 calc R U . . .
C22 C 0.7125(4) 0.2286(3) 0.04446(19) 0.0371(8) Uani 1 1 d . . . . .
H22 H 0.763881 0.165489 0.029648 0.044 Uiso 1 1 calc R U . . .
C1 C 0.0356(3) 0.4766(3) 0.09036(15) 0.0281(6) Uani 1 1 d . . . . .
H1 H -0.065457 0.454548 0.100271 0.034 Uiso 1 1 calc R U . . .
C8 C 0.7650(4) 0.5663(3) 0.32302(16) 0.0387(8) Uani 1 1 d . . . . .
H8A H 0.802292 0.491676 0.315515 0.046 Uiso 1 1 calc R U . . .
H8B H 0.725601 0.570573 0.368484 0.046 Uiso 1 1 calc R U . . .
C9 C 0.8980(5) 0.6467(3) 0.3148(2) 0.0568(11) Uani 1 1 d . . . . .
H9A H 0.978811 0.628925 0.346199 0.085 Uiso 1 1 calc R U . . .
H9B H 0.938197 0.641656 0.270021 0.085 Uiso 1 1 calc R U . . .
H9C H 0.861600 0.720456 0.322924 0.085 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
S1 C1 1.693(3) . ?
S1 C4 1.716(3) . ?
O3 C17 1.228(3) . ?
O1 C7 1.198(3) . ?
O2 C7 1.348(3) . ?
O2 C8 1.452(3) . ?
N1 N2 1.122(3) . ?
N1 C6 1.316(3) . ?
N3 C17 1.359(3) . ?
N3 C10 1.456(3) . ?
N3 C5 1.470(3) . ?
C3 C4 1.441(3) . ?
C3 C2 1.472(3) . ?
C3 H3 0.9300 . ?
C18 C19 1.378(4) . ?
C18 C23 1.392(4) . ?
C18 C17 1.485(4) . ?
C10 C11 1.519(4) . ?
C10 H10A 0.9700 . ?
C10 H10B 0.9700 . ?
C5 C6 1.514(3) . ?
C5 C4 1.520(3) . ?
C5 C19 1.525(3) . ?
C16 C11 1.386(4) . ?
C16 C15 1.387(4) . ?
C16 H16 0.9300 . ?
C11 C12 1.392(4) . ?
C6 C7 1.463(4) . ?
C15 C14 1.384(5) . ?
C15 H15 0.9300 . ?
C12 C13 1.382(4) . ?
C12 H12 0.9300 . ?
C20 C19 1.388(4) . ?
C20 C21 1.393(4) . ?
C20 H20 0.9300 . ?
C14 C13 1.385(5) . ?
C14 H14 0.9300 . ?
C23 C22 1.385(5) . ?
C23 H23 0.9300 . ?
C21 C22 1.387(5) . ?
C21 H21 0.9300 . ?
C2 C1 1.352(4) . ?
C2 H2 0.9300 . ?
C13 H13 0.9300 . ?
C22 H22 0.9300 . ?
C1 H1 0.9300 . ?
C8 C9 1.510(6) . ?
C8 H8A 0.9700 . ?
C8 H8B 0.9700 . ?
C9 H9A 0.9600 . ?
C9 H9B 0.9600 . ?
C9 H9C 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
C1 S1 C4 92.30(13) . . ?
C7 O2 C8 116.0(2) . . ?
N2 N1 C6 179.2(3) . . ?
C17 N3 C10 123.1(2) . . ?
C17 N3 C5 114.3(2) . . ?
C10 N3 C5 122.5(2) . . ?
C4 C3 C2 106.2(2) . . ?
C4 C3 H3 126.9 . . ?
C2 C3 H3 126.9 . . ?
C19 C18 C23 121.5(3) . . ?
C19 C18 C17 109.3(2) . . ?
C23 C18 C17 129.1(3) . . ?
N3 C10 C11 113.1(2) . . ?
N3 C10 H10A 108.9 . . ?
C11 C10 H10A 108.9 . . ?
N3 C10 H10B 108.9 . . ?
C11 C10 H10B 108.9 . . ?
H10A C10 H10B 107.8 . . ?
N3 C5 C6 112.8(2) . . ?
N3 C5 C4 109.57(19) . . ?
C6 C5 C4 110.9(2) . . ?
N3 C5 C19 100.96(19) . . ?
C6 C5 C19 113.3(2) . . ?
C4 C5 C19 108.8(2) . . ?
C11 C16 C15 120.6(3) . . ?
C11 C16 H16 119.7 . . ?
C15 C16 H16 119.7 . . ?
O3 C17 N3 125.8(2) . . ?
O3 C17 C18 128.4(2) . . ?
N3 C17 C18 105.8(2) . . ?
C16 C11 C12 119.3(3) . . ?
C16 C11 C10 120.2(2) . . ?
C12 C11 C10 120.4(2) . . ?
N1 C6 C7 116.2(2) . . ?
N1 C6 C5 117.7(2) . . ?
C7 C6 C5 125.4(2) . . ?
C14 C15 C16 119.9(3) . . ?
C14 C15 H15 120.1 . . ?
C16 C15 H15 120.1 . . ?
C13 C12 C11 120.1(3) . . ?
C13 C12 H12 120.0 . . ?
C11 C12 H12 120.0 . . ?
C19 C20 C21 117.0(3) . . ?
C19 C20 H20 121.5 . . ?
C21 C20 H20 121.5 . . ?
C18 C19 C20 121.5(2) . . ?
C18 C19 C5 109.4(2) . . ?
C20 C19 C5 129.1(2) . . ?
C15 C14 C13 119.7(3) . . ?
C15 C14 H14 120.2 . . ?
C13 C14 H14 120.1 . . ?
C3 C4 C5 125.2(2) . . ?
C3 C4 S1 113.52(18) . . ?
C5 C4 S1 120.91(18) . . ?
O1 C7 O2 124.9(2) . . ?
O1 C7 C6 124.2(2) . . ?
O2 C7 C6 110.9(2) . . ?
C22 C23 C18 117.5(3) . . ?
C22 C23 H23 121.3 . . ?
C18 C23 H23 121.3 . . ?
C22 C21 C20 121.7(3) . . ?
C22 C21 H21 119.1 . . ?
C20 C21 H21 119.1 . . ?
C1 C2 C3 115.3(2) . . ?
C1 C2 H2 122.3 . . ?
C3 C2 H2 122.3 . . ?
C12 C13 C14 120.5(3) . . ?
C12 C13 H13 119.7 . . ?
C14 C13 H13 119.7 . . ?
C23 C22 C21 120.8(3) . . ?
C23 C22 H22 119.6 . . ?
C21 C22 H22 119.6 . . ?
C2 C1 S1 112.6(2) . . ?
C2 C1 H1 123.7 . . ?
S1 C1 H1 123.7 . . ?
O2 C8 C9 111.2(3) . . ?
O2 C8 H8A 109.4 . . ?
C9 C8 H8A 109.4 . . ?
O2 C8 H8B 109.4 . . ?
C9 C8 H8B 109.4 . . ?
H8A C8 H8B 108.0 . . ?
C8 C9 H9A 109.5 . . ?
C8 C9 H9B 109.5 . . ?
H9A C9 H9B 109.5 . . ?
C8 C9 H9C 109.5 . . ?
H9A C9 H9C 109.5 . . ?
H9B C9 H9C 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
C17 N3 C10 C11 -94.8(3) . . . . ?
C5 N3 C10 C11 82.3(3) . . . . ?
C17 N3 C5 C6 125.6(2) . . . . ?
C10 N3 C5 C6 -51.7(3) . . . . ?
C17 N3 C5 C4 -110.4(2) . . . . ?
C10 N3 C5 C4 72.3(3) . . . . ?
C17 N3 C5 C19 4.3(3) . . . . ?
C10 N3 C5 C19 -173.0(2) . . . . ?
C10 N3 C17 O3 -3.8(4) . . . . ?
C5 N3 C17 O3 178.9(2) . . . . ?
C10 N3 C17 C18 174.8(2) . . . . ?
C5 N3 C17 C18 -2.4(3) . . . . ?
C19 C18 C17 O3 177.8(3) . . . . ?
C23 C18 C17 O3 1.2(5) . . . . ?
C19 C18 C17 N3 -0.8(3) . . . . ?
C23 C18 C17 N3 -177.5(3) . . . . ?
C15 C16 C11 C12 0.4(4) . . . . ?
C15 C16 C11 C10 176.5(3) . . . . ?
N3 C10 C11 C16 45.5(3) . . . . ?
N3 C10 C11 C12 -138.5(2) . . . . ?
N3 C5 C6 N1 88.2(3) . . . . ?
C4 C5 C6 N1 -35.1(3) . . . . ?
C19 C5 C6 N1 -157.9(2) . . . . ?
N3 C5 C6 C7 -82.0(3) . . . . ?
C4 C5 C6 C7 154.7(2) . . . . ?
C19 C5 C6 C7 31.9(3) . . . . ?
C11 C16 C15 C14 0.0(5) . . . . ?
C16 C11 C12 C13 -0.6(4) . . . . ?
C10 C11 C12 C13 -176.7(3) . . . . ?
C23 C18 C19 C20 -1.5(4) . . . . ?
C17 C18 C19 C20 -178.4(2) . . . . ?
C23 C18 C19 C5 -179.5(2) . . . . ?
C17 C18 C19 C5 3.6(3) . . . . ?
C21 C20 C19 C18 1.3(4) . . . . ?
C21 C20 C19 C5 178.9(3) . . . . ?
N3 C5 C19 C18 -4.6(3) . . . . ?
C6 C5 C19 C18 -125.5(2) . . . . ?
C4 C5 C19 C18 110.6(2) . . . . ?
N3 C5 C19 C20 177.5(3) . . . . ?
C6 C5 C19 C20 56.7(4) . . . . ?
C4 C5 C19 C20 -67.2(3) . . . . ?
C16 C15 C14 C13 -0.2(5) . . . . ?
C2 C3 C4 C5 173.9(2) . . . . ?
C2 C3 C4 S1 0.6(2) . . . . ?
N3 C5 C4 C3 18.2(3) . . . . ?
C6 C5 C4 C3 143.4(2) . . . . ?
C19 C5 C4 C3 -91.3(3) . . . . ?
N3 C5 C4 S1 -169.01(18) . . . . ?
C6 C5 C4 S1 -43.8(3) . . . . ?
C19 C5 C4 S1 81.5(2) . . . . ?
C1 S1 C4 C3 -0.1(2) . . . . ?
C1 S1 C4 C5 -173.7(2) . . . . ?
C8 O2 C7 O1 -2.3(4) . . . . ?
C8 O2 C7 C6 176.1(2) . . . . ?
N1 C6 C7 O1 -170.7(3) . . . . ?
C5 C6 C7 O1 -0.4(4) . . . . ?
N1 C6 C7 O2 10.9(3) . . . . ?
C5 C6 C7 O2 -178.8(2) . . . . ?
C19 C18 C23 C22 0.9(4) . . . . ?
C17 C18 C23 C22 177.2(3) . . . . ?
C19 C20 C21 C22 -0.6(5) . . . . ?
C4 C3 C2 C1 -1.1(3) . . . . ?
C11 C12 C13 C14 0.4(5) . . . . ?
C15 C14 C13 C12 0.0(5) . . . . ?
C18 C23 C22 C21 -0.2(5) . . . . ?
C20 C21 C22 C23 0.1(5) . . . . ?
C3 C2 C1 S1 1.0(3) . . . . ?
C4 S1 C1 C2 -0.5(2) . . . . ?
C7 O2 C8 C9 86.9(4) . . . . ?

_refine_diff_density_max         0.534
_refine_diff_density_min         -0.463
_refine_diff_density_rms         0.052

