##############################################################################
###                                                                        ###
###        Electronic paper (Acta Crystallographica Section E)             ###
###                                                                        ###
##############################################################################
#                                                                            #
# This CIF contains the data in a paper accepted for publication in Acta     #
# Crystallographica Section E. It conforms to the requirements of Notes      #
# for Authors for Section E, and has been peer reviewed under the auspices   #
# of the IUCr Commission on Journals.                                        #
#                                                                            #
# Full details of the Crystallographic Information File format               #
# are given in the paper "The Crystallographic Information File (CIF):       #
# a New Standard Archive File for Crystallography" by S. R. Hall, F. H.      #
# Allen and I. D. Brown [Acta Cryst. (1991), A47, 655-685].                  #
#                                                                            #
# The current version of the core CIF dictionary is obtainable from          #
# ftp://ftp.iucr.org/pub/cif_core.dic. The current version number is 2.1.    #
#                                                                            #
# Software is freely available for graphical display of the structure(s) in  #
# this CIF.  For information consult the CIF home page http://www.iucr.org/  #
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##############################################################################
                                             
data_global
_audit_creation_method     'SHELXL97'
_journal_date_recd_electronic     2007-04-03
_journal_date_accepted     2007-06-07
_journal_name_full     'Acta Crystallographica, Section E'
_journal_year     2007
_journal_volume     63
_journal_issue      7
_journal_page_first     m1883
_journal_page_last     m1883
_journal_paper_category     QM
_journal_coeditor_code     WW2083
_publ_contact_author_name     'Li-Bin Wang'
_publ_contact_author_address
;
Department of Chemistry
Tonghua Teachers' College
Tonghua Jilin 134001
People's Republic of China
;
_publ_contact_author_email     wanglibin0612@yahoo.com.cn
_publ_contact_author_fax     ?
_publ_contact_author_phone     ?
_publ_section_title
;\
(μ-2,2'-Biquinolinyl-4,4'-dicarboxylato-κ²O:O')\
bis[(dimethylformamide-κO)triphenyltin(IV)]
;
loop_
    _publ_author_name
    _publ_author_address
    'Li-Bin Wang'
;
Department of Chemistry
Tonghua Teachers' College
Tonghua Jilin 134001
People's Republic of China
;
data_I
_audit_creation_method     SHELXL97
_chemical_name_systematic
;
(μ-2,2'-Biquinolinyl-4,4'-dicarboxylato-κ²O:O')bis[(dimethylformamide-
\kO)triphenyltin(IV)]
;
_chemical_name_common     ?
_chemical_formula_moiety     'C62 H54 N4 O6 Sn2'
_chemical_formula_sum     'C62 H54 N4 O6 Sn2'
_chemical_formula_iupac     '[Sn2 (C6 H5)6 (C10 H5 N O2)2 (C3 H7 N O)2]'
_chemical_formula_weight     1188.47
_chemical_melting_point     ?
_symmetry_cell_setting     monoclinic
_symmetry_space_group_name_H-M     'C 2/c'
_symmetry_space_group_name_Hall     '-C 2yc'
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     30.4592(17)
_cell_length_b     9.5344(5)
_cell_length_c     22.0343(14)
_cell_angle_alpha     90.00
_cell_angle_beta     123.051(2)
_cell_angle_gamma     90.00
_cell_volume     5363.5(5)
_cell_formula_units_Z     4
_cell_measurement_reflns_used     6203
_cell_measurement_theta_min     1.6
_cell_measurement_theta_max     28.3
_cell_measurement_temperature     293(2)
_exptl_crystal_description     block
_exptl_crystal_colour     colourless
_exptl_crystal_size_max     0.54
_exptl_crystal_size_mid     0.48
_exptl_crystal_size_min     0.39
_exptl_crystal_density_diffrn     1.472
_exptl_crystal_density_meas     ?
_exptl_crystal_density_method     'not measured'
_exptl_crystal_F_000     2408
_exptl_absorpt_coefficient_mu     0.987
_exptl_absorpt_correction_type     multi-scan
_exptl_absorpt_process_details     '(SADABS; Sheldrick, 1996)'
_exptl_absorpt_correction_T_min     0.590
_exptl_absorpt_correction_T_max     0.678
_exptl_special_details
;
;
_diffrn_ambient_temperature     293(2)
_diffrn_radiation_type     MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_source     'fine-focus sealed tube'
_diffrn_radiation_monochromator     graphite
_diffrn_measurement_device_type     'Bruker APEX CCD area-detector'
_diffrn_measurement_method     ω
_diffrn_detector_area_resol_mean     ?
_diffrn_reflns_number     15947
_diffrn_reflns_av_R_equivalents     0.0325
_diffrn_reflns_av_sigmaI/netI     0.0339
_diffrn_reflns_theta_min     1.60
_diffrn_reflns_theta_max     28.29
_diffrn_reflns_theta_full     25.00
_diffrn_measured_fraction_theta_max     0.930
_diffrn_measured_fraction_theta_full     0.993
_diffrn_reflns_limit_h_min     -40
_diffrn_reflns_limit_h_max     26
_diffrn_reflns_limit_k_min     -12
_diffrn_reflns_limit_k_max     10
_diffrn_reflns_limit_l_min     -26
_diffrn_reflns_limit_l_max     29
_diffrn_standards_number     0
_diffrn_standards_interval_count     .
_diffrn_standards_interval_time     .
_diffrn_standards_decay_%     ?
_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.
;
_reflns_number_total     6203
_reflns_number_gt     4618
_reflns_threshold_expression     I>2σ(I)
_refine_ls_structure_factor_coef     Fsqd
_refine_ls_matrix_type     full
_refine_ls_R_factor_all     0.0666
_refine_ls_R_factor_gt     0.0540
_refine_ls_wR_factor_gt     0.1630
_refine_ls_wR_factor_ref     0.1700
_refine_ls_goodness_of_fit_ref     1.076
_refine_ls_restrained_S_all     1.076
_refine_ls_number_reflns     6203
_refine_ls_number_parameters     334
_refine_ls_number_restraints     0
_refine_ls_hydrogen_treatment     constr
_refine_ls_weighting_scheme     calc
_refine_ls_weighting_details
               'calc w = 1/[σ²(Fo²)+(0.1137P)²] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_hydrogens     geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary     difmap
_refine_ls_shift/su_max     0.001
_refine_ls_shift/su_mean     0.000
_refine_diff_density_max     2.817
_refine_diff_density_min     -1.142
_refine_ls_extinction_method     none
_refine_ls_extinction_coef     ?
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'
    'Sn' 'Sn' -0.6537 1.4246
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
_computing_data_collection     'SMART (Bruker, 1997)'
_computing_cell_refinement     'SAINT (Bruker, 1999)'
_computing_data_reduction     'SAINT'
_computing_structure_solution     'SHELXS97 (Sheldrick, 1997)'
_computing_structure_refinement     'SHELXL97 (Sheldrick, 1997)'
_computing_molecular_graphics     'SHELXTL-Plus (Sheldrick, 1990)'
_computing_publication_material     'SHELXL97'
loop_
    _atom_site_type_symbol
    _atom_site_label
    _atom_site_fract_x
    _atom_site_fract_y
    _atom_site_fract_z
    _atom_site_U_iso_or_equiv
    _atom_site_adp_type
    _atom_site_calc_flag
    _atom_site_refinement_flags
    _atom_site_occupancy
    _atom_site_disorder_assembly
    _atom_site_disorder_group
    Sn Sn1 0.347644(10) 0.11246(3) 0.186776(13) 0.04892(14) Uani d . 1 . .
    C C1 0.37845(18) -0.0948(5) 0.2087(2) 0.0555(11) Uani d . 1 . .
    C C2 0.36527(18) -0.1935(5) 0.2426(2) 0.0593(11) Uani d . 1 . .
    H H2 0.3448 -0.1670 0.2602 0.071 Uiso calc R 1 . .
    C C3 0.3825(2) -0.3329(6) 0.2507(3) 0.0728(13) Uani d . 1 . .
    H H3 0.3731 -0.3993 0.2724 0.087 Uiso calc R 1 . .
    C C4 0.4137(3) -0.3694(5) 0.2257(3) 0.0765(16) Uani d . 1 . .
    H H4 0.4251 -0.4616 0.2304 0.092 Uiso calc R 1 . .
    C C5 0.4280(2) -0.2738(7) 0.1948(3) 0.0810(15) Uani d . 1 . .
    H H5 0.4495 -0.2999 0.1788 0.097 Uiso calc R 1 . .
    C C6 0.4110(2) -0.1384(6) 0.1867(3) 0.0693(13) Uani d . 1 . .
    H H6 0.4216 -0.0735 0.1657 0.083 Uiso calc R 1 . .
    C C7 0.27208(17) 0.1477(6) 0.1675(2) 0.0567(11) Uani d . 1 . .
    C C8 0.2439(2) 0.0377(8) 0.1703(3) 0.0898(17) Uani d . 1 . .
    H H8 0.2588 -0.0513 0.1823 0.108 Uiso calc R 1 . .
    C C9 0.1931(2) 0.0564(9) 0.1553(4) 0.0997(19) Uani d . 1 . .
    H H9 0.1751 -0.0185 0.1588 0.120 Uiso calc R 1 . .
    C C10 0.1708(2) 0.1853(9) 0.1356(3) 0.094(2) Uani d . 1 . .
    H H10 0.1365 0.1988 0.1225 0.113 Uiso calc R 1 . .
    C C11 0.1984(3) 0.2913(9) 0.1352(5) 0.121(3) Uani d . 1 . .
    H H11 0.1839 0.3807 0.1245 0.145 Uiso calc R 1 . .
    C C12 0.2486(3) 0.2729(8) 0.1503(4) 0.102(2) Uani d . 1 . .
    H H12 0.2664 0.3502 0.1485 0.122 Uiso calc R 1 . .
    C C13 0.37577(16) 0.2455(4) 0.1378(2) 0.0487(9) Uani d . 1 . .
    C C14 0.3425(2) 0.3145(5) 0.0722(3) 0.0650(12) Uani d . 1 . .
    H H14 0.3066 0.2999 0.0481 0.078 Uiso calc R 1 . .
    C C15 0.3608(3) 0.4014(6) 0.0428(4) 0.0840(18) Uani d . 1 . .
    H H15 0.3374 0.4478 -0.0002 0.101 Uiso calc R 1 . .
    C C16 0.4128(4) 0.4219(6) 0.0753(5) 0.096(2) Uani d . 1 . .
    H H16 0.4253 0.4799 0.0540 0.116 Uiso calc R 1 . .
    C C17 0.4480(3) 0.3552(6) 0.1413(4) 0.0890(19) Uani d . 1 . .
    H H17 0.4839 0.3697 0.1645 0.107 Uiso calc R 1 . .
    C C18 0.42890(18) 0.2687(5) 0.1710(3) 0.0672(12) Uani d . 1 . .
    H H18 0.4522 0.2243 0.2147 0.081 Uiso calc R 1 . .
    C C19 0.44734(17) 0.1592(6) 0.4717(3) 0.0637(12) Uani d . 1 . .
    C C20 0.4307(2) 0.0166(7) 0.4709(4) 0.088(2) Uani d . 1 . .
    H H20 0.4080 -0.0268 0.4267 0.105 Uiso calc R 1 . .
    C C21 0.4477(3) -0.0562(8) 0.5337(5) 0.0917(18) Uani d . 1 . .
    H H21 0.4369 -0.1483 0.5315 0.110 Uiso calc R 1 . .
    C C22 0.4809(2) 0.0069(7) 0.6004(4) 0.0861(16) Uani d . 1 . .
    H H22 0.4915 -0.0423 0.6427 0.103 Uiso calc R 1 . .
    C C23 0.4981(2) 0.1400(6) 0.6043(3) 0.0698(13) Uani d . 1 . .
    H H23 0.5211 0.1796 0.6495 0.084 Uiso calc R 1 . .
    C C24 0.48187(17) 0.2212(5) 0.5406(3) 0.0612(11) Uani d . 1 . .
    C C25 0.48861(15) 0.4313(5) 0.4933(2) 0.0549(10) Uani d . 1 . .
    C C26 0.45349(18) 0.3773(5) 0.4212(2) 0.0632(13) Uani d . 1 . .
    H H26 0.4448 0.4320 0.3812 0.076 Uiso calc R 1 . .
    C C27 0.43283(16) 0.2450(6) 0.4116(3) 0.0658(14) Uani d . 1 . .
    C C28 0.3947(2) 0.1862(8) 0.3373(3) 0.087(2) Uani d . 1 . .
    C C29 0.2256(3) -0.1292(7) -0.0722(4) 0.109(3) Uani d . 1 . .
    H H29A 0.2124 -0.1853 -0.1149 0.163 Uiso calc R 1 . .
    H H29C 0.2084 -0.0397 -0.0852 0.163 Uiso calc R 1 . .
    H H29B 0.2190 -0.1759 -0.0393 0.163 Uiso calc R 1 . .
    C C30 0.3076(4) -0.1706(11) -0.0725(6) 0.151(4) Uani d . 1 . .
    H H30B 0.2818 -0.2201 -0.1154 0.226 Uiso calc R 1 . .
    H H30C 0.3346 -0.2345 -0.0397 0.226 Uiso calc R 1 . .
    H H30A 0.3226 -0.0972 -0.0853 0.226 Uiso calc R 1 . .
    C C31 0.3084(2) -0.0349(5) 0.0229(3) 0.0668(12) Uani d . 1 . .
    H H31 0.3437 -0.0186 0.0418 0.080 Uiso calc R 1 . .
    N N1 0.50173(14) 0.3517(4) 0.55044(19) 0.0541(8) Uani d . 1 . .
    N N2 0.2823(2) -0.1090(4) -0.0371(3) 0.0769(13) Uani d . 1 . .
    O O1 0.40005(16) 0.2196(6) 0.2896(2) 0.1038(15) Uani d . 1 . .
    O O2 0.3613(2) 0.0932(5) 0.3264(2) 0.0980(14) Uani d . 1 . .
    O O3 0.29056(13) 0.0138(3) 0.05551(17) 0.0662(8) Uani d . 1 . .
_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_site_symmetry_2
    _geom_bond_distance
    _geom_bond_publ_flag
    Sn1 C13 . 2.125(4) yes
    Sn1 C7 . 2.127(4) yes
    Sn1 C1 . 2.127(4) yes
    Sn1 O1 . 2.187(4) yes
    C1 C6 . 1.384(7) ?
    C1 C2 . 1.390(6) ?
    C2 C3 . 1.404(7) ?
    C2 H2 . 0.9300 ?
    C3 C4 . 1.377(8) ?
    C3 H3 . 0.9300 ?
    C4 C5 . 1.344(8) ?
    C4 H4 . 0.9300 ?
    C5 C6 . 1.366(7) ?
    C5 H5 . 0.9300 ?
    C6 H6 . 0.9300 ?
    C7 C12 . 1.337(8) ?
    C7 C8 . 1.378(8) ?
    C8 C9 . 1.406(8) ?
    C8 H8 . 0.9300 ?
    C9 C10 . 1.356(11) ?
    C9 H9 . 0.9300 ?
    C10 C11 . 1.318(10) ?
    C10 H10 . 0.9300 ?
    C11 C12 . 1.385(9) ?
    C11 H11 . 0.9300 ?
    C12 H12 . 0.9300 ?
    C13 C18 . 1.383(6) ?
    C13 C14 . 1.397(7) ?
    C14 C15 . 1.345(8) ?
    C14 H14 . 0.9300 ?
    C15 C16 . 1.351(11) ?
    C15 H15 . 0.9300 ?
    C16 C17 . 1.403(11) ?
    C16 H16 . 0.9300 ?
    C17 C18 . 1.364(8) ?
    C17 H17 . 0.9300 ?
    C18 H18 . 0.9300 ?
    C19 C27 . 1.407(8) ?
    C19 C24 . 1.422(7) ?
    C19 C20 . 1.447(8) ?
    C20 C21 . 1.371(9) ?
    C20 H20 . 0.9300 ?
    C21 C22 . 1.387(10) ?
    C21 H21 . 0.9300 ?
    C22 C23 . 1.358(8) ?
    C22 H22 . 0.9300 ?
    C23 C24 . 1.433(8) ?
    C23 H23 . 0.9300 ?
    C24 N1 . 1.349(6) ?
    C25 N1 . 1.331(6) ?
    C25 C25 5_666 1.436(10) ?
    C25 C26 . 1.443(6) ?
    C26 C27 . 1.373(7) ?
    C26 H26 . 0.9300 ?
    C27 C28 . 1.507(6) ?
    C28 O1 . 1.190(7) ?
    C28 O2 . 1.270(8) ?
    C29 N2 . 1.471(9) ?
    C29 H29A . 0.9600 ?
    C29 H29C . 0.9600 ?
    C29 H29B . 0.9600 ?
    C30 N2 . 1.482(9) ?
    C30 H30B . 0.9600 ?
    C30 H30C . 0.9600 ?
    C30 H30A . 0.9600 ?
    C31 O3 . 1.206(6) ?
    C31 N2 . 1.316(6) ?
    C31 H31 . 0.9300 ?
loop_
    _geom_angle_atom_site_label_1
    _geom_angle_atom_site_label_2
    _geom_angle_atom_site_label_3
    _geom_angle_site_symmetry_1
    _geom_angle_site_symmetry_3
    _geom_angle
    _geom_angle_publ_flag
    C13 Sn1 C7 . . 119.75(18) yes
    C13 Sn1 C1 . . 114.85(16) yes
    C7 Sn1 C1 . . 119.16(19) yes
    C13 Sn1 O1 . . 88.78(16) yes
    C7 Sn1 O1 . . 103.41(17) yes
    C1 Sn1 O1 . . 102.48(19) yes
    C6 C1 C2 . . 117.2(4) ?
    C6 C1 Sn1 . . 120.7(4) ?
    C2 C1 Sn1 . . 122.0(3) ?
    C1 C2 C3 . . 120.7(5) ?
    C1 C2 H2 . . 119.7 ?
    C3 C2 H2 . . 119.7 ?
    C4 C3 C2 . . 118.8(5) ?
    C4 C3 H3 . . 120.6 ?
    C2 C3 H3 . . 120.6 ?
    C5 C4 C3 . . 121.0(5) ?
    C5 C4 H4 . . 119.5 ?
    C3 C4 H4 . . 119.5 ?
    C4 C5 C6 . . 120.2(5) ?
    C4 C5 H5 . . 119.9 ?
    C6 C5 H5 . . 119.9 ?
    C5 C6 C1 . . 122.1(5) ?
    C5 C6 H6 . . 119.0 ?
    C1 C6 H6 . . 119.0 ?
    C12 C7 C8 . . 116.2(5) ?
    C12 C7 Sn1 . . 123.5(4) ?
    C8 C7 Sn1 . . 120.2(4) ?
    C7 C8 C9 . . 121.7(6) ?
    C7 C8 H8 . . 119.1 ?
    C9 C8 H8 . . 119.1 ?
    C10 C9 C8 . . 119.0(7) ?
    C10 C9 H9 . . 120.5 ?
    C8 C9 H9 . . 120.5 ?
    C11 C10 C9 . . 119.2(6) ?
    C11 C10 H10 . . 120.4 ?
    C9 C10 H10 . . 120.4 ?
    C10 C11 C12 . . 121.7(7) ?
    C10 C11 H11 . . 119.2 ?
    C12 C11 H11 . . 119.2 ?
    C7 C12 C11 . . 122.1(7) ?
    C7 C12 H12 . . 118.9 ?
    C11 C12 H12 . . 118.9 ?
    C18 C13 C14 . . 116.8(4) ?
    C18 C13 Sn1 . . 120.4(4) ?
    C14 C13 Sn1 . . 122.7(3) ?
    C15 C14 C13 . . 122.1(5) ?
    C15 C14 H14 . . 119.0 ?
    C13 C14 H14 . . 119.0 ?
    C14 C15 C16 . . 120.5(6) ?
    C14 C15 H15 . . 119.7 ?
    C16 C15 H15 . . 119.7 ?
    C15 C16 C17 . . 119.7(5) ?
    C15 C16 H16 . . 120.2 ?
    C17 C16 H16 . . 120.2 ?
    C18 C17 C16 . . 119.1(6) ?
    C18 C17 H17 . . 120.4 ?
    C16 C17 H17 . . 120.4 ?
    C17 C18 C13 . . 121.7(6) ?
    C17 C18 H18 . . 119.2 ?
    C13 C18 H18 . . 119.2 ?
    C27 C19 C24 . . 115.7(5) ?
    C27 C19 C20 . . 127.4(5) ?
    C24 C19 C20 . . 117.0(5) ?
    C21 C20 C19 . . 121.8(6) ?
    C21 C20 H20 . . 119.1 ?
    C19 C20 H20 . . 119.1 ?
    C20 C21 C22 . . 120.3(6) ?
    C20 C21 H21 . . 119.9 ?
    C22 C21 H21 . . 119.9 ?
    C23 C22 C21 . . 120.4(6) ?
    C23 C22 H22 . . 119.8 ?
    C21 C22 H22 . . 119.8 ?
    C22 C23 C24 . . 121.8(6) ?
    C22 C23 H23 . . 119.1 ?
    C24 C23 H23 . . 119.1 ?
    N1 C24 C19 . . 124.1(5) ?
    N1 C24 C23 . . 117.2(4) ?
    C19 C24 C23 . . 118.7(5) ?
    N1 C25 C25 . 5_666 117.6(4) ?
    N1 C25 C26 . . 119.9(5) ?
    C25 C25 C26 5_666 . 122.5(5) ?
    C27 C26 C25 . . 120.0(5) ?
    C27 C26 H26 . . 120.0 ?
    C25 C26 H26 . . 120.0 ?
    C26 C27 C19 . . 120.5(4) ?
    C26 C27 C28 . . 121.7(6) ?
    C19 C27 C28 . . 117.8(5) ?
    O1 C28 O2 . . 120.1(5) ?
    O1 C28 C27 . . 117.7(6) ?
    O2 C28 C27 . . 121.8(6) ?
    N2 C29 H29A . . 109.5 ?
    N2 C29 H29C . . 109.5 ?
    H29A C29 H29C . . 109.5 ?
    N2 C29 H29B . . 109.5 ?
    H29A C29 H29B . . 109.5 ?
    H29C C29 H29B . . 109.5 ?
    N2 C30 H30B . . 109.5 ?
    N2 C30 H30C . . 109.5 ?
    H30B C30 H30C . . 109.5 ?
    N2 C30 H30A . . 109.5 ?
    H30B C30 H30A . . 109.5 ?
    H30C C30 H30A . . 109.5 ?
    O3 C31 N2 . . 125.7(5) ?
    O3 C31 H31 . . 117.2 ?
    N2 C31 H31 . . 117.2 ?
    C25 N1 C24 . . 119.8(4) ?
    C31 N2 C29 . . 119.4(5) ?
    C31 N2 C30 . . 122.6(6) ?
    C29 N2 C30 . . 118.0(6) ?
    C28 O1 Sn1 . . 114.5(4) ?
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_site_symmetry_1
    _geom_torsion_site_symmetry_2
    _geom_torsion_site_symmetry_3
    _geom_torsion_site_symmetry_4
    _geom_torsion
    _geom_torsion_publ_flag
    C13 Sn1 C1 C6 . . . . -4.8(5) ?
    C7 Sn1 C1 C6 . . . . 147.4(4) ?
    O1 Sn1 C1 C6 . . . . -99.3(4) ?
    C13 Sn1 C1 C2 . . . . 178.0(3) ?
    C7 Sn1 C1 C2 . . . . -29.8(4) ?
    O1 Sn1 C1 C2 . . . . 83.5(4) ?
    C6 C1 C2 C3 . . . . -2.9(7) ?
    Sn1 C1 C2 C3 . . . . 174.3(4) ?
    C1 C2 C3 C4 . . . . 1.4(7) ?
    C2 C3 C4 C5 . . . . 0.6(8) ?
    C3 C4 C5 C6 . . . . -0.9(9) ?
    C4 C5 C6 C1 . . . . -0.8(9) ?
    C2 C1 C6 C5 . . . . 2.7(8) ?
    Sn1 C1 C6 C5 . . . . -174.6(4) ?
    C13 Sn1 C7 C12 . . . . -26.3(6) ?
    C1 Sn1 C7 C12 . . . . -177.2(5) ?
    O1 Sn1 C7 C12 . . . . 70.0(5) ?
    C13 Sn1 C7 C8 . . . . 151.7(4) ?
    C1 Sn1 C7 C8 . . . . 0.9(5) ?
    O1 Sn1 C7 C8 . . . . -111.9(4) ?
    C12 C7 C8 C9 . . . . 0.5(9) ?
    Sn1 C7 C8 C9 . . . . -177.7(5) ?
    C7 C8 C9 C10 . . . . 2.0(10) ?
    C8 C9 C10 C11 . . . . -4.1(11) ?
    C9 C10 C11 C12 . . . . 3.8(13) ?
    C8 C7 C12 C11 . . . . -0.8(11) ?
    Sn1 C7 C12 C11 . . . . 177.3(7) ?
    C10 C11 C12 C7 . . . . -1.3(14) ?
    C7 Sn1 C13 C18 . . . . 151.2(3) ?
    C1 Sn1 C13 C18 . . . . -56.8(4) ?
    O1 Sn1 C13 C18 . . . . 46.4(4) ?
    C7 Sn1 C13 C14 . . . . -28.0(4) ?
    C1 Sn1 C13 C14 . . . . 124.0(4) ?
    O1 Sn1 C13 C14 . . . . -132.8(4) ?
    C18 C13 C14 C15 . . . . -1.0(7) ?
    Sn1 C13 C14 C15 . . . . 178.2(4) ?
    C13 C14 C15 C16 . . . . 1.9(9) ?
    C14 C15 C16 C17 . . . . -1.9(10) ?
    C15 C16 C17 C18 . . . . 1.0(10) ?
    C16 C17 C18 C13 . . . . -0.2(8) ?
    C14 C13 C18 C17 . . . . 0.2(7) ?
    Sn1 C13 C18 C17 . . . . -179.1(4) ?
    C27 C19 C20 C21 . . . . -179.9(5) ?
    C24 C19 C20 C21 . . . . -0.5(7) ?
    C19 C20 C21 C22 . . . . 1.2(8) ?
    C20 C21 C22 C23 . . . . -1.8(9) ?
    C21 C22 C23 C24 . . . . 1.6(8) ?
    C27 C19 C24 N1 . . . . -2.1(6) ?
    C20 C19 C24 N1 . . . . 178.5(4) ?
    C27 C19 C24 C23 . . . . 179.8(4) ?
    C20 C19 C24 C23 . . . . 0.3(6) ?
    C22 C23 C24 N1 . . . . -179.2(5) ?
    C22 C23 C24 C19 . . . . -0.9(7) ?
    N1 C25 C26 C27 . . . . 1.3(6) ?
    C25 C25 C26 C27 5_666 . . . -180.0(5) ?
    C25 C26 C27 C19 . . . . -2.6(6) ?
    C25 C26 C27 C28 . . . . 178.1(4) ?
    C24 C19 C27 C26 . . . . 2.9(6) ?
    C20 C19 C27 C26 . . . . -177.7(4) ?
    C24 C19 C27 C28 . . . . -177.8(4) ?
    C20 C19 C27 C28 . . . . 1.6(7) ?
    C26 C27 C28 O1 . . . . 33.8(9) ?
    C19 C27 C28 O1 . . . . -145.5(6) ?
    C26 C27 C28 O2 . . . . -153.2(6) ?
    C19 C27 C28 O2 . . . . 27.5(8) ?
    C25 C25 N1 C24 5_666 . . . -179.2(4) ?
    C26 C25 N1 C24 . . . . -0.4(6) ?
    C19 C24 N1 C25 . . . . 0.9(6) ?
    C23 C24 N1 C25 . . . . 179.0(4) ?
    O3 C31 N2 C29 . . . . 4.4(8) ?
    O3 C31 N2 C30 . . . . -177.3(7) ?
    O2 C28 O1 Sn1 . . . . 1.2(9) ?
    C27 C28 O1 Sn1 . . . . 174.3(4) ?
    C13 Sn1 O1 C28 . . . . 173.5(5) ?
    C7 Sn1 O1 C28 . . . . 53.1(6) ?
    C1 Sn1 O1 C28 . . . . -71.3(5) ?
