# Supplementary Material (ESI) for Chemical Communications
# This journal is (c) The Royal Society of Chemistry 2006


data_global
_journal_name_full               Chem.Commun.

_publ_contact_author_name        'Samir Zard'
_publ_contact_author_address     
;Laboratoire DCPH
Ecole Polytechnique
Route de Saclay
F91128 Palaiseau
France
;
_publ_contact_author_email       ZARD@POLY.POLYTECHNIQUE.FR

_publ_contact_letter             
;
?
;
_journal_year                    ?
_journal_volume                  ?

_journal_issue                   ?
_journal_page_first              ?
_journal_page_last               ?


_publ_section_title              
;
An Unprecedented Radical Ring Closure on a Pyridine Nitrogen
;

#_publ_author_address
#;
#a)Sanofi-Aventis,
#94400 Vitry-sur-Seine,
#France
#b)Laboratoire de Synthese Organique associe au CNRS,
#Ecole Polytechnique,
#91128 Palaiseau cedex,
#France.
#c)Laboratoire Heteroelements et Coordination,
#CNRS UMR 7653,
#DCPH Ecole Polytechnique,
#F-91128 Palaiseau Cedex
#France


_publ_section_abstract           
; ?
;

_publ_section_comment            
;
;
_publ_section_exptl_prep         
;All structures were solved using SIR97 (Altomare et al.) and refined with
SHELXL97 (Sheldrick). Figures were drawn with Platon (Spek, 1990).
;

_publ_section_references         
;Altomare, A., Cascarano, G., Giacovazzo, C. & Guagliardi, A.
(1993) J. Appl. Cryst. 26, 343-350.

Sheldrick, G.M. SHELXL97. Program for crystal structure
refinement. University of G\\"ottingen, Germany, 1997.

Sluis, P. v.d., Spek, A.L. (1990). Acta Cryst. A46, 194-201.

Spek, A.L. (1990). Acta Cryst. A46, C-34.
;

_publ_section_figure_captions    
; ?
;

_publ_section_acknowledgements   
; ?
;
loop_
_publ_author_name
'Myriem El Qacemi'
'Louis Ricard'
'Samir Z. Zard'

data_me-878-3
_database_code_depnum_ccdc_archive 'CCDC 601962'
#compound 12

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
;
?
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C18 H23 N3 O6'
_chemical_formula_weight         377.39

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'

_symmetry_cell_setting           Monoclinic
_symmetry_space_group_name_H-M   'P21/c '

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

_cell_length_a                   17.4910(10)
_cell_length_b                   8.9170(10)
_cell_length_c                   12.0560(10)
_cell_angle_alpha                90.00
_cell_angle_beta                 94.8510(10)
_cell_angle_gamma                90.00
_cell_volume                     1873.6(3)
_cell_formula_units_Z            4
_cell_measurement_temperature    150.0(1)
_cell_measurement_reflns_used    4963
_cell_measurement_theta_min      0.998
_cell_measurement_theta_max      30.034

_exptl_crystal_description       plate
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.338
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             800
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9780
_exptl_absorpt_correction_T_max  0.9899
_exptl_absorpt_process_details   ?

_exptl_special_details           
;
?
;

_diffrn_ambient_temperature      150.0(1)
_diffrn_radiation_wavelength     0.71069
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi and omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            8739
_diffrn_reflns_av_R_equivalents  0.0143
_diffrn_reflns_av_sigmaI/netI    0.0342
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_theta_min         2.84
_diffrn_reflns_theta_max         30.03
_reflns_number_total             5450
_reflns_number_gt                4058
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    ?
_computing_publication_material  ?

_refine_special_details          
;
Refinement of F^2^ against ALL reflections. The weighted R-factor wR and
goodness of fit S are based on F^2^, conventional R-factors R are based
on F, with F set to zero for negative F^2^. The threshold expression of
F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is
not relevant to the choice of reflections for refinement. R-factors based
on F^2^ 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/[\s^2^(Fo^2^)+(0.0600P)^2^+0.1755P] where P=(Fo^2^+2Fc^2^)/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         5450
_refine_ls_number_parameters     289
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0573
_refine_ls_R_factor_gt           0.0391
_refine_ls_wR_factor_ref         0.1166
_refine_ls_wR_factor_gt          0.1060
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_restrained_S_all      1.048
_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
O1 O 0.29923(5) -0.88334(10) 0.21314(7) 0.0425(2) Uani 1 1 d . . .
O2 O 0.07411(4) -0.40241(11) 0.39937(7) 0.0430(2) Uani 1 1 d . . .
O3 O 0.18161(4) -0.31071(9) 0.49566(6) 0.03101(17) Uani 1 1 d . . .
O4 O 0.40462(5) -0.95894(11) 0.62770(9) 0.0537(3) Uani 1 1 d . . .
O5 O 0.62579(4) -0.72641(10) 0.70718(6) 0.03573(19) Uani 1 1 d . . .
O6 O 0.56186(4) -0.63061(10) 0.55520(6) 0.0368(2) Uani 1 1 d . . .
N1 N 0.23326(5) -0.71364(10) 0.30840(7) 0.02674(19) Uani 1 1 d . . .
N2 N 0.18940(4) -0.52318(10) 0.40389(7) 0.02631(18) Uani 1 1 d . . .
N3 N 0.50905(5) -0.81574(11) 0.66190(7) 0.0303(2) Uani 1 1 d . . .
C1 C 0.23625(7) -0.82805(13) 0.23043(9) 0.0334(2) Uani 1 1 d . . .
C2 C 0.16267(7) -0.86819(16) 0.17782(10) 0.0399(3) Uani 1 1 d . . .
H2 H 0.1634(8) -0.9496(18) 0.1276(12) 0.048 Uiso 1 1 d . . .
C3 C 0.09783(7) -0.79568(15) 0.20161(10) 0.0389(3) Uani 1 1 d . . .
H3 H 0.0503(8) -0.8262(17) 0.1661(12) 0.047 Uiso 1 1 d . . .
C4 C 0.09842(6) -0.67618(14) 0.27791(9) 0.0326(2) Uani 1 1 d . . .
H4 H 0.0546(8) -0.6246(16) 0.2931(10) 0.039 Uiso 1 1 d . . .
C5 C 0.16822(5) -0.63733(12) 0.32916(8) 0.0261(2) Uani 1 1 d . . .
C6 C 0.14132(6) -0.40855(13) 0.43039(8) 0.0289(2) Uani 1 1 d . . .
C7 C 0.27336(5) -0.51861(13) 0.43014(9) 0.0282(2) Uani 1 1 d . . .
H7A H 0.2842(7) -0.5209(15) 0.5115(11) 0.034 Uiso 1 1 d . . .
H7B H 0.2934(7) -0.4252(16) 0.3964(10) 0.034 Uiso 1 1 d . . .
C8 C 0.30209(5) -0.66127(12) 0.37630(8) 0.0268(2) Uani 1 1 d . . .
H8 H 0.3414(7) -0.6390(15) 0.3252(10) 0.032 Uiso 1 1 d . . .
C9 C 0.33082(6) -0.78121(13) 0.46012(9) 0.0296(2) Uani 1 1 d . . .
H9A H 0.2934(7) -0.7910(15) 0.5182(11) 0.036 Uiso 1 1 d . . .
H9B H 0.3338(7) -0.8765(16) 0.4223(10) 0.036 Uiso 1 1 d . . .
C10 C 0.41022(6) -0.74014(14) 0.51249(10) 0.0320(2) Uani 1 1 d . . .
H10A H 0.4473(7) -0.7402(16) 0.4559(11) 0.038 Uiso 1 1 d . . .
H10B H 0.4102(7) -0.6412(17) 0.5437(11) 0.038 Uiso 1 1 d . . .
C11 C 0.43913(6) -0.84798(13) 0.60237(10) 0.0338(2) Uani 1 1 d . . .
C12 C 0.53979(7) -0.91152(14) 0.75395(10) 0.0346(2) Uani 1 1 d . . .
H12A H 0.5556(7) -1.0142(17) 0.7240(11) 0.042 Uiso 1 1 d . . .
H12B H 0.5000(7) -0.9283(16) 0.8092(11) 0.042 Uiso 1 1 d . . .
C13 C 0.60709(7) -0.81837(14) 0.80071(10) 0.0360(3) Uani 1 1 d . . .
H13A H 0.5918(8) -0.7494(17) 0.8591(12) 0.043 Uiso 1 1 d . . .
H13B H 0.6517(8) -0.8769(17) 0.8239(11) 0.043 Uiso 1 1 d . . .
C14 C 0.56461(6) -0.71504(12) 0.63318(9) 0.0288(2) Uani 1 1 d . . .
C15 C 0.14606(7) -0.17104(13) 0.53378(9) 0.0346(2) Uani 1 1 d . . .
C16 C 0.07967(8) -0.20849(18) 0.60216(12) 0.0525(4) Uani 1 1 d . . .
H16A H 0.0381 -0.2543 0.5540 0.079 Uiso 1 1 calc R . .
H16B H 0.0610 -0.1165 0.6352 0.079 Uiso 1 1 calc R . .
H16C H 0.0970 -0.2789 0.6615 0.079 Uiso 1 1 calc R . .
C17 C 0.12262(11) -0.07376(18) 0.43416(13) 0.0609(4) Uani 1 1 d . . .
H17A H 0.1664 -0.0607 0.3895 0.091 Uiso 1 1 calc R . .
H17B H 0.1059 0.0244 0.4595 0.091 Uiso 1 1 calc R . .
H17C H 0.0803 -0.1218 0.3889 0.091 Uiso 1 1 calc R . .
C18 C 0.21170(8) -0.10080(16) 0.60527(12) 0.0484(3) Uani 1 1 d . . .
H18A H 0.2252 -0.1648 0.6700 0.073 Uiso 1 1 calc R . .
H18B H 0.1962 -0.0017 0.6304 0.073 Uiso 1 1 calc R . .
H18C H 0.2562 -0.0903 0.5617 0.073 Uiso 1 1 calc R . .

loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
O1 0.0441(5) 0.0464(5) 0.0371(4) -0.0107(4) 0.0034(4) 0.0079(4)
O2 0.0258(4) 0.0523(6) 0.0492(5) -0.0094(4) -0.0064(3) 0.0092(4)
O3 0.0284(4) 0.0309(4) 0.0334(4) -0.0037(3) 0.0007(3) 0.0034(3)
O4 0.0431(5) 0.0414(5) 0.0731(6) 0.0235(5) -0.0159(4) -0.0146(4)
O5 0.0282(4) 0.0441(5) 0.0337(4) 0.0079(4) -0.0043(3) -0.0042(3)
O6 0.0290(4) 0.0430(5) 0.0377(4) 0.0134(4) -0.0014(3) -0.0059(3)
N1 0.0240(4) 0.0311(5) 0.0246(4) -0.0023(3) -0.0011(3) -0.0009(3)
N2 0.0208(4) 0.0303(4) 0.0273(4) -0.0020(3) -0.0009(3) -0.0005(3)
N3 0.0252(4) 0.0297(5) 0.0352(5) 0.0089(4) -0.0018(3) -0.0007(3)
C1 0.0393(6) 0.0351(6) 0.0256(5) -0.0030(4) 0.0016(4) -0.0011(5)
C2 0.0468(6) 0.0419(7) 0.0299(5) -0.0080(5) -0.0038(5) -0.0090(5)
C3 0.0363(6) 0.0466(7) 0.0321(5) -0.0010(5) -0.0068(5) -0.0121(5)
C4 0.0247(5) 0.0398(6) 0.0324(5) 0.0019(5) -0.0025(4) -0.0059(4)
C5 0.0244(4) 0.0301(5) 0.0235(4) 0.0015(4) 0.0007(4) -0.0028(4)
C6 0.0259(4) 0.0345(6) 0.0261(5) 0.0015(4) 0.0006(4) 0.0019(4)
C7 0.0194(4) 0.0318(5) 0.0328(5) -0.0035(4) -0.0017(4) -0.0008(4)
C8 0.0209(4) 0.0319(5) 0.0272(5) -0.0016(4) 0.0000(4) -0.0015(4)
C9 0.0248(4) 0.0309(5) 0.0325(5) -0.0002(4) -0.0014(4) -0.0019(4)
C10 0.0246(4) 0.0334(6) 0.0371(6) 0.0064(5) -0.0027(4) -0.0016(4)
C11 0.0271(5) 0.0313(6) 0.0422(6) 0.0060(5) -0.0024(4) -0.0020(4)
C12 0.0338(5) 0.0329(6) 0.0361(6) 0.0094(5) -0.0028(4) 0.0017(5)
C13 0.0376(6) 0.0367(6) 0.0326(5) 0.0062(5) -0.0040(4) 0.0014(5)
C14 0.0235(4) 0.0314(5) 0.0313(5) 0.0012(4) 0.0007(4) -0.0007(4)
C15 0.0369(5) 0.0314(6) 0.0355(5) -0.0024(5) 0.0041(4) 0.0070(5)
C16 0.0468(7) 0.0584(9) 0.0549(8) -0.0134(7) 0.0193(6) 0.0021(6)
C17 0.0843(11) 0.0400(8) 0.0564(8) 0.0090(7) -0.0043(8) 0.0150(8)
C18 0.0474(7) 0.0423(7) 0.0551(8) -0.0175(6) 0.0021(6) 0.0007(6)

_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 C1 1.2405(14) . ?
O2 C6 1.2043(12) . ?
O3 C6 1.3353(13) . ?
O3 C15 1.4823(13) . ?
O4 C11 1.2115(14) . ?
O5 C14 1.3379(12) . ?
O5 C13 1.4538(14) . ?
O6 C14 1.2021(13) . ?
N1 C5 1.3666(13) . ?
N1 C1 1.3913(14) . ?
N1 C8 1.4734(12) . ?
N2 C6 1.3783(13) . ?
N2 C5 1.3887(13) . ?
N2 C7 1.4765(12) . ?
N3 C14 1.3883(14) . ?
N3 C11 1.3945(13) . ?
N3 C12 1.4661(14) . ?
C1 C2 1.4313(16) . ?
C2 C3 1.3571(19) . ?
C2 H2 0.946(15) . ?
C3 C4 1.4071(17) . ?
C3 H3 0.942(14) . ?
C4 C5 1.3656(14) . ?
C4 H4 0.926(14) . ?
C7 C8 1.5321(15) . ?
C7 H7A 0.983(13) . ?
C7 H7B 1.003(13) . ?
C8 C9 1.5270(15) . ?
C8 H8 0.982(12) . ?
C9 C10 1.5209(14) . ?
C9 H9A 1.002(13) . ?
C9 H9B 0.968(14) . ?
C10 C11 1.5040(15) . ?
C10 H10A 0.980(13) . ?
C10 H10B 0.959(15) . ?
C12 C13 1.5104(17) . ?
C12 H12A 1.030(14) . ?
C12 H12B 1.014(13) . ?
C13 H13A 0.989(15) . ?
C13 H13B 0.960(15) . ?
C15 C17 1.5099(18) . ?
C15 C18 1.5119(17) . ?
C15 C16 1.5170(17) . ?
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
C6 O3 C15 121.16(8) . . ?
C14 O5 C13 109.89(8) . . ?
C5 N1 C1 124.63(9) . . ?
C5 N1 C8 113.21(8) . . ?
C1 N1 C8 122.15(9) . . ?
C6 N2 C5 124.02(8) . . ?
C6 N2 C7 123.04(9) . . ?
C5 N2 C7 111.42(8) . . ?
C14 N3 C11 127.36(9) . . ?
C14 N3 C12 110.24(8) . . ?
C11 N3 C12 121.27(9) . . ?
O1 C1 N1 119.32(10) . . ?
O1 C1 C2 127.17(11) . . ?
N1 C1 C2 113.52(10) . . ?
C3 C2 C1 121.56(11) . . ?
C3 C2 H2 123.8(8) . . ?
C1 C2 H2 114.6(9) . . ?
C2 C3 C4 122.61(11) . . ?
C2 C3 H3 119.1(9) . . ?
C4 C3 H3 118.3(9) . . ?
C5 C4 C3 116.41(11) . . ?
C5 C4 H4 120.5(8) . . ?
C3 C4 H4 123.0(8) . . ?
C4 C5 N1 121.13(10) . . ?
C4 C5 N2 131.20(10) . . ?
N1 C5 N2 107.65(8) . . ?
O2 C6 O3 127.29(10) . . ?
O2 C6 N2 124.08(10) . . ?
O3 C6 N2 108.62(8) . . ?
N2 C7 C8 104.01(8) . . ?
N2 C7 H7A 108.5(7) . . ?
C8 C7 H7A 111.3(8) . . ?
N2 C7 H7B 108.1(7) . . ?
C8 C7 H7B 112.3(7) . . ?
H7A C7 H7B 112.2(10) . . ?
N1 C8 C9 110.70(9) . . ?
N1 C8 C7 102.51(8) . . ?
C9 C8 C7 113.73(9) . . ?
N1 C8 H8 107.4(7) . . ?
C9 C8 H8 110.3(7) . . ?
C7 C8 H8 111.8(8) . . ?
C10 C9 C8 110.11(9) . . ?
C10 C9 H9A 111.0(7) . . ?
C8 C9 H9A 109.0(7) . . ?
C10 C9 H9B 108.9(7) . . ?
C8 C9 H9B 109.3(7) . . ?
H9A C9 H9B 108.5(11) . . ?
C11 C10 C9 112.62(9) . . ?
C11 C10 H10A 107.4(8) . . ?
C9 C10 H10A 110.2(8) . . ?
C11 C10 H10B 108.5(8) . . ?
C9 C10 H10B 110.7(8) . . ?
H10A C10 H10B 107.2(11) . . ?
O4 C11 N3 118.20(10) . . ?
O4 C11 C10 124.02(10) . . ?
N3 C11 C10 117.76(9) . . ?
N3 C12 C13 100.75(9) . . ?
N3 C12 H12A 110.1(7) . . ?
C13 C12 H12A 113.3(7) . . ?
N3 C12 H12B 110.8(8) . . ?
C13 C12 H12B 113.1(8) . . ?
H12A C12 H12B 108.6(11) . . ?
O5 C13 C12 103.89(9) . . ?
O5 C13 H13A 107.1(8) . . ?
C12 C13 H13A 111.0(8) . . ?
O5 C13 H13B 107.6(8) . . ?
C12 C13 H13B 113.5(9) . . ?
H13A C13 H13B 113.1(12) . . ?
O6 C14 O5 123.08(9) . . ?
O6 C14 N3 128.13(10) . . ?
O5 C14 N3 108.78(9) . . ?
O3 C15 C17 109.20(10) . . ?
O3 C15 C18 101.93(9) . . ?
C17 C15 C18 110.95(12) . . ?
O3 C15 C16 110.12(10) . . ?
C17 C15 C16 112.94(12) . . ?
C18 C15 C16 111.14(11) . . ?
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 . . ?

_diffrn_measured_fraction_theta_max 0.994
_diffrn_reflns_theta_full        30.03
_diffrn_measured_fraction_theta_full 0.994
_refine_diff_density_max         0.334
_refine_diff_density_min         -0.281
_refine_diff_density_rms         0.038
#END===