# Supplementary Material (ESI) for Chemical Communications
# This journal is (c) The Royal Society of Chemistry 2007


data_global
_journal_name_full               Chem.Commun.

_journal_coden_Cambridge         0182

_publ_contact_author_name        'Fernando Lopez-Ortiz'
_publ_contact_author_address     
;
Area de Quimica Organica
Universidad de Almeria
Carretera de Sacramento
Almeria
04120
SPAIN
;

_publ_contact_author_email       FLORTIZ@UAL.ES

_publ_section_title              
;
Calfa,Cortho-Dimetalated Phosphazene Complexes
;
loop_
_publ_author_name
'Fernando Lopez-Ortiz'
'Ignacio Fernandez'
'Jesus Garcia Lopez'
'Manuel Serrano Ruiz'

data_j841s
_database_code_depnum_ccdc_archive 'CCDC 621431'

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
;
?
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C22 H34 N O2 P Sn2'
_chemical_formula_weight         612.85

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'
P P 0.1023 0.0942 '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'

_symmetry_cell_setting           Triclinic
_symmetry_space_group_name_H-M   P-1

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, -z'

_cell_length_a                   9.2494(4)
_cell_length_b                   11.4145(5)
_cell_length_c                   13.6288(6)
_cell_angle_alpha                77.744(1)
_cell_angle_beta                 80.155(1)
_cell_angle_gamma                68.041(1)
_cell_volume                     1297.41(10)
_cell_formula_units_Z            2
_cell_measurement_temperature    150(2)
_cell_measurement_reflns_used    4354
_cell_measurement_theta_min      4.772
_cell_measurement_theta_max      50.005

_exptl_crystal_description       prismatic
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.100
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.569
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             608
_exptl_absorpt_coefficient_mu    2.002
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_correction_T_min  0.602
_exptl_absorpt_correction_T_max  0.819
_exptl_absorpt_process_details   ?

_exptl_special_details           
;
?
;

_diffrn_ambient_temperature      150(2)
_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  'CCD area detector'
_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            6932
_diffrn_reflns_av_R_equivalents  0.0187
_diffrn_reflns_av_sigmaI/netI    0.0348
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_theta_min         1.54
_diffrn_reflns_theta_max         25.01
_reflns_number_total             4449
_reflns_number_gt                4008
_reflns_threshold_expression     >2sigma(I)

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

_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^)+(0.0455P)^2^+1.0011P] 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    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         4449
_refine_ls_number_parameters     261
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0373
_refine_ls_R_factor_gt           0.0337
_refine_ls_wR_factor_ref         0.0893
_refine_ls_wR_factor_gt          0.0869
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_restrained_S_all      1.081
_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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
Sn1 Sn 0.00158(3) 0.44157(3) 0.75990(2) 0.03238(11) Uani 1 1 d . . .
Sn2 Sn 0.72261(3) 0.01387(3) 0.75272(2) 0.03224(11) Uani 1 1 d . . .
P1 P 0.39669(12) 0.31425(10) 0.78168(7) 0.0245(2) Uani 1 1 d . . .
O1 O 0.2379(3) 0.3159(3) 0.6160(2) 0.0324(6) Uani 1 1 d . . .
O2 O 0.4003(3) 0.1175(3) 0.5948(2) 0.0366(7) Uani 1 1 d . . .
N1 N 0.4461(4) 0.2052(3) 0.7120(2) 0.0271(7) Uani 1 1 d . . .
C11 C 0.4185(5) 0.4628(4) 0.7177(3) 0.0282(9) Uani 1 1 d . . .
C12 C 0.3328(5) 0.5801(4) 0.7497(3) 0.0343(10) Uani 1 1 d . . .
H12 H 0.2523 0.5852 0.8040 0.041 Uiso 1 1 calc R . .
C13 C 0.3650(6) 0.6889(4) 0.7025(4) 0.0450(12) Uani 1 1 d . . .
H13 H 0.3070 0.7684 0.7249 0.054 Uiso 1 1 calc R . .
C14 C 0.4802(6) 0.6823(5) 0.6237(4) 0.0439(12) Uani 1 1 d . . .
H14 H 0.5010 0.7575 0.5913 0.053 Uiso 1 1 calc R . .
C15 C 0.5663(6) 0.5671(5) 0.5909(4) 0.0435(11) Uani 1 1 d . . .
H15 H 0.6462 0.5628 0.5362 0.052 Uiso 1 1 calc R . .
C16 C 0.5350(5) 0.4573(4) 0.6386(3) 0.0345(10) Uani 1 1 d . . .
H16 H 0.5944 0.3778 0.6166 0.041 Uiso 1 1 calc R . .
C21 C 0.5391(5) 0.2504(4) 0.8723(3) 0.0268(8) Uani 1 1 d . . .
C22 C 0.6679(5) 0.1355(4) 0.8665(3) 0.0289(9) Uani 1 1 d . . .
C23 C 0.7697(5) 0.0966(4) 0.9419(3) 0.0356(10) Uani 1 1 d . . .
H23 H 0.8566 0.0188 0.9413 0.043 Uiso 1 1 calc R . .
C24 C 0.7478(6) 0.1678(5) 1.0169(3) 0.0420(11) Uani 1 1 d . . .
H24 H 0.8199 0.1390 1.0663 0.050 Uiso 1 1 calc R . .
C25 C 0.6217(6) 0.2807(5) 1.0206(3) 0.0406(11) Uani 1 1 d . . .
H25 H 0.6064 0.3292 1.0726 0.049 Uiso 1 1 calc R . .
C26 C 0.5185(5) 0.3224(4) 0.9481(3) 0.0348(10) Uani 1 1 d . . .
H26 H 0.4325 0.4007 0.9496 0.042 Uiso 1 1 calc R . .
C31 C -0.1658(6) 0.5282(6) 0.8784(4) 0.0616(15) Uani 1 1 d . . .
H31A H -0.2704 0.5669 0.8549 0.092 Uiso 1 1 calc R . .
H31B H -0.1364 0.5944 0.8964 0.092 Uiso 1 1 calc R . .
H31C H -0.1665 0.4626 0.9378 0.092 Uiso 1 1 calc R . .
C32 C 0.0093(6) 0.5877(4) 0.6351(4) 0.0460(12) Uani 1 1 d . . .
H32A H 0.1182 0.5826 0.6150 0.069 Uiso 1 1 calc R . .
H32B H -0.0528 0.6717 0.6543 0.069 Uiso 1 1 calc R . .
H32C H -0.0338 0.5763 0.5784 0.069 Uiso 1 1 calc R . .
C33 C -0.0694(6) 0.2985(5) 0.7262(4) 0.0511(13) Uani 1 1 d . . .
H33A H -0.1773 0.3109 0.7558 0.077 Uiso 1 1 calc R . .
H33B H 0.0001 0.2137 0.7545 0.077 Uiso 1 1 calc R . .
H33C H -0.0636 0.3052 0.6529 0.077 Uiso 1 1 calc R . .
C41 C 0.7891(5) 0.0916(5) 0.6029(3) 0.0382(10) Uani 1 1 d . . .
H41A H 0.8637 0.0224 0.5683 0.057 Uiso 1 1 calc R . .
H41B H 0.8383 0.1534 0.6053 0.057 Uiso 1 1 calc R . .
H41C H 0.6960 0.1347 0.5661 0.057 Uiso 1 1 calc R . .
C42 C 0.9511(6) -0.1225(5) 0.7925(4) 0.0583(15) Uani 1 1 d . . .
H42A H 0.9908 -0.1860 0.7469 0.087 Uiso 1 1 calc R . .
H42B H 0.9408 -0.1659 0.8622 0.087 Uiso 1 1 calc R . .
H42C H 1.0242 -0.0770 0.7864 0.087 Uiso 1 1 calc R . .
C43 C 0.5824(6) -0.1036(4) 0.7758(4) 0.0459(12) Uani 1 1 d . . .
H43A H 0.4773 -0.0513 0.7563 0.069 Uiso 1 1 calc R . .
H43B H 0.5750 -0.1417 0.8472 0.069 Uiso 1 1 calc R . .
H43C H 0.6307 -0.1718 0.7345 0.069 Uiso 1 1 calc R . .
C51 C 0.2065(5) 0.3473(4) 0.8476(3) 0.0297(9) Uani 1 1 d . . .
H51 H 0.1976 0.4061 0.8950 0.036 Uiso 1 1 calc R . .
C52 C 0.1895(6) 0.2247(5) 0.9139(4) 0.0455(12) Uani 1 1 d . . .
H52A H 0.2044 0.1614 0.8710 0.068 Uiso 1 1 calc R . .
H52B H 0.0846 0.2453 0.9507 0.068 Uiso 1 1 calc R . .
H52C H 0.2685 0.1896 0.9621 0.068 Uiso 1 1 calc R . .
C53 C 0.3527(5) 0.2219(4) 0.6404(3) 0.0285(9) Uani 1 1 d . . .
C54 C 0.2938(6) 0.1154(5) 0.5294(4) 0.0453(12) Uani 1 1 d . . .
H54A H 0.1981 0.1084 0.5699 0.068 Uiso 1 1 calc R . .
H54B H 0.3439 0.0418 0.4939 0.068 Uiso 1 1 calc R . .
H54C H 0.2671 0.1946 0.4802 0.068 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
Sn1 0.02261(17) 0.03387(18) 0.03871(19) -0.00934(13) -0.00170(12) -0.00646(13)
Sn2 0.02744(17) 0.03408(18) 0.03559(19) -0.01145(13) -0.00756(13) -0.00622(13)
P1 0.0221(5) 0.0279(5) 0.0251(5) -0.0071(4) -0.0028(4) -0.0087(4)
O1 0.0234(15) 0.0370(17) 0.0346(16) -0.0104(13) -0.0058(12) -0.0043(13)
O2 0.0347(17) 0.0371(17) 0.0421(18) -0.0190(14) -0.0122(14) -0.0069(13)
N1 0.0233(17) 0.0300(18) 0.0304(18) -0.0080(14) -0.0083(14) -0.0080(14)
C11 0.032(2) 0.030(2) 0.027(2) -0.0051(17) -0.0075(17) -0.0135(18)
C12 0.030(2) 0.036(2) 0.039(2) -0.0125(19) 0.0052(19) -0.0144(19)
C13 0.047(3) 0.031(2) 0.060(3) -0.014(2) -0.004(2) -0.015(2)
C14 0.057(3) 0.045(3) 0.039(3) 0.002(2) -0.008(2) -0.030(2)
C15 0.048(3) 0.052(3) 0.034(3) -0.002(2) 0.001(2) -0.027(2)
C16 0.038(2) 0.036(2) 0.030(2) -0.0090(18) -0.0015(19) -0.013(2)
C21 0.025(2) 0.033(2) 0.026(2) -0.0054(17) -0.0028(16) -0.0146(18)
C22 0.027(2) 0.036(2) 0.028(2) -0.0046(17) -0.0046(17) -0.0151(18)
C23 0.028(2) 0.041(3) 0.035(2) -0.0061(19) -0.0073(19) -0.0083(19)
C24 0.038(3) 0.063(3) 0.030(2) -0.006(2) -0.012(2) -0.021(2)
C25 0.044(3) 0.054(3) 0.033(2) -0.016(2) -0.005(2) -0.022(2)
C26 0.035(2) 0.042(3) 0.031(2) -0.0106(19) -0.0040(19) -0.015(2)
C31 0.043(3) 0.060(4) 0.067(4) -0.022(3) 0.009(3) -0.001(3)
C32 0.049(3) 0.036(3) 0.051(3) -0.001(2) -0.015(2) -0.011(2)
C33 0.041(3) 0.059(3) 0.067(3) -0.011(3) -0.012(3) -0.029(3)
C41 0.032(2) 0.054(3) 0.035(2) -0.017(2) 0.0030(19) -0.020(2)
C42 0.046(3) 0.055(3) 0.064(4) -0.028(3) -0.021(3) 0.009(3)
C43 0.049(3) 0.036(3) 0.058(3) -0.004(2) -0.013(2) -0.019(2)
C51 0.029(2) 0.035(2) 0.027(2) -0.0085(17) -0.0004(17) -0.0136(18)
C52 0.037(3) 0.049(3) 0.047(3) 0.008(2) -0.002(2) -0.020(2)
C53 0.029(2) 0.033(2) 0.026(2) -0.0078(17) -0.0011(17) -0.0133(19)
C54 0.041(3) 0.062(3) 0.046(3) -0.027(2) -0.010(2) -0.021(2)

_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
Sn1 C32 2.127(5) . ?
Sn1 C33 2.128(5) . ?
Sn1 C31 2.159(5) . ?
Sn1 C51 2.209(4) . ?
Sn2 C41 2.132(4) . ?
Sn2 C43 2.136(4) . ?
Sn2 C22 2.170(4) . ?
Sn2 C42 2.181(5) . ?
P1 N1 1.609(3) . ?
P1 C51 1.775(4) . ?
P1 C11 1.801(4) . ?
P1 C21 1.802(4) . ?
O1 C53 1.227(5) . ?
O2 C53 1.353(5) . ?
O2 C54 1.447(5) . ?
N1 C53 1.349(5) . ?
C11 C16 1.381(6) . ?
C11 C12 1.395(6) . ?
C12 C13 1.384(6) . ?
C12 H12 0.9500 . ?
C13 C14 1.371(7) . ?
C13 H13 0.9500 . ?
C14 C15 1.381(7) . ?
C14 H14 0.9500 . ?
C15 C16 1.393(6) . ?
C15 H15 0.9500 . ?
C16 H16 0.9500 . ?
C21 C26 1.397(6) . ?
C21 C22 1.410(6) . ?
C22 C23 1.401(5) . ?
C23 C24 1.381(6) . ?
C23 H23 0.9500 . ?
C24 C25 1.380(7) . ?
C24 H24 0.9500 . ?
C25 C26 1.378(6) . ?
C25 H25 0.9500 . ?
C26 H26 0.9500 . ?
C31 H31A 0.9800 . ?
C31 H31B 0.9800 . ?
C31 H31C 0.9800 . ?
C32 H32A 0.9800 . ?
C32 H32B 0.9800 . ?
C32 H32C 0.9800 . ?
C33 H33A 0.9800 . ?
C33 H33B 0.9800 . ?
C33 H33C 0.9800 . ?
C41 H41A 0.9800 . ?
C41 H41B 0.9800 . ?
C41 H41C 0.9800 . ?
C42 H42A 0.9800 . ?
C42 H42B 0.9800 . ?
C42 H42C 0.9800 . ?
C43 H43A 0.9800 . ?
C43 H43B 0.9800 . ?
C43 H43C 0.9800 . ?
C51 C52 1.542(6) . ?
C51 H51 1.0000 . ?
C52 H52A 0.9800 . ?
C52 H52B 0.9800 . ?
C52 H52C 0.9800 . ?
C54 H54A 0.9800 . ?
C54 H54B 0.9800 . ?
C54 H54C 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
C32 Sn1 C33 113.9(2) . . ?
C32 Sn1 C31 108.6(2) . . ?
C33 Sn1 C31 107.1(2) . . ?
C32 Sn1 C51 118.80(17) . . ?
C33 Sn1 C51 108.87(18) . . ?
C31 Sn1 C51 97.88(19) . . ?
C41 Sn2 C43 119.50(18) . . ?
C41 Sn2 C22 116.52(16) . . ?
C43 Sn2 C22 113.62(18) . . ?
C41 Sn2 C42 99.3(2) . . ?
C43 Sn2 C42 103.0(2) . . ?
C22 Sn2 C42 100.19(17) . . ?
N1 P1 C51 114.88(18) . . ?
N1 P1 C11 114.62(18) . . ?
C51 P1 C11 108.9(2) . . ?
N1 P1 C21 103.94(17) . . ?
C51 P1 C21 108.71(19) . . ?
C11 P1 C21 105.01(18) . . ?
C53 O2 C54 115.7(3) . . ?
C53 N1 P1 117.8(3) . . ?
C16 C11 C12 119.1(4) . . ?
C16 C11 P1 117.6(3) . . ?
C12 C11 P1 123.1(3) . . ?
C13 C12 C11 120.1(4) . . ?
C13 C12 H12 119.9 . . ?
C11 C12 H12 119.9 . . ?
C14 C13 C12 120.2(4) . . ?
C14 C13 H13 119.9 . . ?
C12 C13 H13 119.9 . . ?
C13 C14 C15 120.5(4) . . ?
C13 C14 H14 119.7 . . ?
C15 C14 H14 119.7 . . ?
C14 C15 C16 119.3(4) . . ?
C14 C15 H15 120.3 . . ?
C16 C15 H15 120.3 . . ?
C11 C16 C15 120.7(4) . . ?
C11 C16 H16 119.7 . . ?
C15 C16 H16 119.7 . . ?
C26 C21 C22 121.0(4) . . ?
C26 C21 P1 116.6(3) . . ?
C22 C21 P1 122.3(3) . . ?
C23 C22 C21 116.5(4) . . ?
C23 C22 Sn2 117.2(3) . . ?
C21 C22 Sn2 126.3(3) . . ?
C24 C23 C22 122.1(4) . . ?
C24 C23 H23 119.0 . . ?
C22 C23 H23 119.0 . . ?
C25 C24 C23 120.4(4) . . ?
C25 C24 H24 119.8 . . ?
C23 C24 H24 119.8 . . ?
C26 C25 C24 119.4(4) . . ?
C26 C25 H25 120.3 . . ?
C24 C25 H25 120.3 . . ?
C25 C26 C21 120.5(4) . . ?
C25 C26 H26 119.7 . . ?
C21 C26 H26 119.7 . . ?
Sn1 C31 H31A 109.5 . . ?
Sn1 C31 H31B 109.5 . . ?
H31A C31 H31B 109.5 . . ?
Sn1 C31 H31C 109.5 . . ?
H31A C31 H31C 109.5 . . ?
H31B C31 H31C 109.5 . . ?
Sn1 C32 H32A 109.5 . . ?
Sn1 C32 H32B 109.5 . . ?
H32A C32 H32B 109.5 . . ?
Sn1 C32 H32C 109.5 . . ?
H32A C32 H32C 109.5 . . ?
H32B C32 H32C 109.5 . . ?
Sn1 C33 H33A 109.5 . . ?
Sn1 C33 H33B 109.5 . . ?
H33A C33 H33B 109.5 . . ?
Sn1 C33 H33C 109.5 . . ?
H33A C33 H33C 109.5 . . ?
H33B C33 H33C 109.5 . . ?
Sn2 C41 H41A 109.5 . . ?
Sn2 C41 H41B 109.5 . . ?
H41A C41 H41B 109.5 . . ?
Sn2 C41 H41C 109.5 . . ?
H41A C41 H41C 109.5 . . ?
H41B C41 H41C 109.5 . . ?
Sn2 C42 H42A 109.5 . . ?
Sn2 C42 H42B 109.5 . . ?
H42A C42 H42B 109.5 . . ?
Sn2 C42 H42C 109.5 . . ?
H42A C42 H42C 109.5 . . ?
H42B C42 H42C 109.5 . . ?
Sn2 C43 H43A 109.5 . . ?
Sn2 C43 H43B 109.5 . . ?
H43A C43 H43B 109.5 . . ?
Sn2 C43 H43C 109.5 . . ?
H43A C43 H43C 109.5 . . ?
H43B C43 H43C 109.5 . . ?
C52 C51 P1 110.7(3) . . ?
C52 C51 Sn1 108.1(3) . . ?
P1 C51 Sn1 118.5(2) . . ?
C52 C51 H51 106.3 . . ?
P1 C51 H51 106.3 . . ?
Sn1 C51 H51 106.3 . . ?
C51 C52 H52A 109.5 . . ?
C51 C52 H52B 109.5 . . ?
H52A C52 H52B 109.5 . . ?
C51 C52 H52C 109.5 . . ?
H52A C52 H52C 109.5 . . ?
H52B C52 H52C 109.5 . . ?
O1 C53 N1 127.8(4) . . ?
O1 C53 O2 121.1(3) . . ?
N1 C53 O2 111.0(3) . . ?
O2 C54 H54A 109.5 . . ?
O2 C54 H54B 109.5 . . ?
H54A C54 H54B 109.5 . . ?
O2 C54 H54C 109.5 . . ?
H54A C54 H54C 109.5 . . ?
H54B C54 H54C 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
C51 P1 N1 C53 56.6(4) . . . . ?
C11 P1 N1 C53 -70.7(3) . . . . ?
C21 P1 N1 C53 175.3(3) . . . . ?
N1 P1 C11 C16 -29.9(4) . . . . ?
C51 P1 C11 C16 -160.2(3) . . . . ?
C21 P1 C11 C16 83.5(3) . . . . ?
N1 P1 C11 C12 155.6(3) . . . . ?
C51 P1 C11 C12 25.3(4) . . . . ?
C21 P1 C11 C12 -91.0(4) . . . . ?
C16 C11 C12 C13 -0.1(6) . . . . ?
P1 C11 C12 C13 174.3(3) . . . . ?
C11 C12 C13 C14 0.5(7) . . . . ?
C12 C13 C14 C15 -0.5(7) . . . . ?
C13 C14 C15 C16 0.1(7) . . . . ?
C12 C11 C16 C15 -0.4(6) . . . . ?
P1 C11 C16 C15 -175.1(3) . . . . ?
C14 C15 C16 C11 0.4(7) . . . . ?
N1 P1 C21 C26 -175.9(3) . . . . ?
C51 P1 C21 C26 -53.1(4) . . . . ?
C11 P1 C21 C26 63.4(4) . . . . ?
N1 P1 C21 C22 5.8(4) . . . . ?
C51 P1 C21 C22 128.6(3) . . . . ?
C11 P1 C21 C22 -114.9(4) . . . . ?
C26 C21 C22 C23 1.8(6) . . . . ?
P1 C21 C22 C23 -180.0(3) . . . . ?
C26 C21 C22 Sn2 -178.3(3) . . . . ?
P1 C21 C22 Sn2 -0.1(5) . . . . ?
C41 Sn2 C22 C23 -112.9(3) . . . . ?
C43 Sn2 C22 C23 102.1(3) . . . . ?
C42 Sn2 C22 C23 -7.1(4) . . . . ?
C41 Sn2 C22 C21 67.2(4) . . . . ?
C43 Sn2 C22 C21 -77.8(4) . . . . ?
C42 Sn2 C22 C21 173.0(4) . . . . ?
C21 C22 C23 C24 -1.3(6) . . . . ?
Sn2 C22 C23 C24 178.8(3) . . . . ?
C22 C23 C24 C25 0.7(7) . . . . ?
C23 C24 C25 C26 -0.5(7) . . . . ?
C24 C25 C26 C21 1.0(7) . . . . ?
C22 C21 C26 C25 -1.7(6) . . . . ?
P1 C21 C26 C25 180.0(3) . . . . ?
N1 P1 C51 C52 56.8(3) . . . . ?
C11 P1 C51 C52 -173.1(3) . . . . ?
C21 P1 C51 C52 -59.2(3) . . . . ?
N1 P1 C51 Sn1 -68.9(3) . . . . ?
C11 P1 C51 Sn1 61.3(3) . . . . ?
C21 P1 C51 Sn1 175.18(19) . . . . ?
C32 Sn1 C51 C52 -165.5(3) . . . . ?
C33 Sn1 C51 C52 -33.0(3) . . . . ?
C31 Sn1 C51 C52 78.2(3) . . . . ?
C32 Sn1 C51 P1 -38.6(3) . . . . ?
C33 Sn1 C51 P1 93.9(3) . . . . ?
C31 Sn1 C51 P1 -154.9(3) . . . . ?
P1 N1 C53 O1 5.7(6) . . . . ?
P1 N1 C53 O2 -174.0(3) . . . . ?
C54 O2 C53 O1 -10.0(6) . . . . ?
C54 O2 C53 N1 169.7(4) . . . . ?

_diffrn_measured_fraction_theta_max 0.978
_diffrn_reflns_theta_full        25.01
_diffrn_measured_fraction_theta_full 0.978
_refine_diff_density_max         1.150
_refine_diff_density_min         -0.722
_refine_diff_density_rms         0.103