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#$Date: 2023-03-13 12:29:15 +0200 (Mon, 13 Mar 2023) $
#$Revision: 281842 $
#$URL: file:///home/coder/svn-repositories/cod/cif/8/10/69/8106930.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_8106930
loop_
_publ_author_name
'Breuers, Verena'
'Frank, Walter'
_publ_section_title
;
 The crystal structure of
 2-chloro-1,3-bis(2,4,6-trimethylphenyl)-4,4-dimethyl-1,3,2λ3,4-diazaphosphasiletidine
;
_journal_issue                   2
_journal_name_full
'Zeitschrift für Kristallographie - New Crystal Structures'
_journal_page_first              529
_journal_page_last               532
_journal_paper_doi               10.1515/ncrs-2015-0176
_journal_volume                  231
_journal_year                    2016
_chemical_formula_moiety         'C19.88 H27.64 Cl1.12 N2 P Si'
_chemical_formula_sum            'C19.88 H27.64 Cl1.12 N2 P Si'
_chemical_formula_weight         393.36
_chemical_name_systematic
;
2-chloro-1,3-bis(2,4,6-trimethylphenyl)-4,4-dimethyl-1,3,2λ³,4-\
diazaphosphasiletidine
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   16.811(3)
_cell_length_b                   14.357(3)
_cell_length_c                   17.523(3)
_cell_measurement_reflns_used    2000
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      25.9
_cell_measurement_theta_min      2.2
_cell_volume                     4229.3(14)
_computing_cell_refinement       'CELL (Stoe & Cie, 1996)'
_computing_data_collection       'EXPOSE (Stoe & Cie, 1996)'
_computing_data_reduction        'INTEGRATE (Stoe & Cie, 1996)'
_computing_molecular_graphics    'Diamond ver. 3.0a'
_computing_publication_material  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Stoe IPDS'
_diffrn_measurement_method       φ-scans
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0555
_diffrn_reflns_av_unetI/netI     0.0182
_diffrn_reflns_Laue_measured_fraction_full 0.981
_diffrn_reflns_Laue_measured_fraction_max 0.981
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            52947
_diffrn_reflns_point_group_measured_fraction_full 0.981
_diffrn_reflns_point_group_measured_fraction_max 0.981
_diffrn_reflns_theta_full        25.100
_diffrn_reflns_theta_max         25.099
_diffrn_reflns_theta_min         2.198
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.334
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.236
_exptl_crystal_description       plate
_exptl_crystal_F_000             1671
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.333
_refine_diff_density_min         -0.222
_refine_diff_density_rms         0.057
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.103
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         3691
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.104
_refine_ls_R_factor_all          0.0426
_refine_ls_R_factor_gt           0.0387
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[σ²(Fo²)+(0.0591P)²+2.6586P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1066
_refine_ls_wR_factor_ref         0.1089
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                3344
_reflns_number_total             3691
_reflns_threshold_expression     'I > 2σ(I)'
_cod_data_source_file            suppl_ncrs-2015-0176_suppl.cif
_cod_data_source_block           1055
_cod_database_code               8106930
_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'
'-x, -y, -z'
'x-1/2, y, -z-1/2'
'-x-1/2, y-1/2, z'
'x, -y-1/2, z-1/2'
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
Cl1 Cl 0.30486(3) 0.50678(4) 0.11579(3) 0.03256(16) Uani 1 1 d . . . . .
P1 P 0.23021(3) 0.45448(4) 0.02343(3) 0.02442(15) Uani 1 1 d . . . . .
Si1 Si 0.25084(3) 0.27853(4) 0.01935(3) 0.02445(16) Uani 1 1 d D U . . .
N1 N 0.29164(10) 0.37891(11) -0.02070(9) 0.0240(4) Uani 1 1 d . . . . .
N2 N 0.18743(9) 0.35936(12) 0.06205(9) 0.0244(4) Uani 1 1 d . . . . .
C1 C 0.34598(11) 0.39733(14) -0.08197(11) 0.0249(4) Uani 1 1 d . . . . .
C2 C 0.31613(12) 0.41837(15) -0.15473(11) 0.0298(4) Uani 1 1 d . . . . .
C3 C 0.36936(14) 0.42942(16) -0.21482(12) 0.0361(5) Uani 1 1 d . . . . .
H3 H 0.3495 0.4442 -0.2641 0.043 Uiso 1 1 calc R U . . .
C4 C 0.45074(14) 0.41935(16) -0.20462(13) 0.0376(5) Uani 1 1 d . . . . .
C5 C 0.47881(13) 0.40142(16) -0.13207(14) 0.0363(5) Uani 1 1 d . . . . .
H5 H 0.5346 0.3960 -0.1245 0.044 Uiso 1 1 calc R U . . .
C6 C 0.42835(12) 0.39095(14) -0.06946(12) 0.0297(4) Uani 1 1 d . . . . .
C7 C 0.22778(13) 0.42707(18) -0.16927(12) 0.0381(5) Uani 1 1 d . . . . .
H7A H 0.2011 0.3694 -0.1537 0.057 Uiso 1 1 calc R U . . .
H7B H 0.2185 0.4380 -0.2238 0.057 Uiso 1 1 calc R U . . .
H7C H 0.2065 0.4794 -0.1397 0.057 Uiso 1 1 calc R U . . .
C8 C 0.50685(17) 0.42432(19) -0.27206(15) 0.0546(7) Uani 1 1 d . . . . .
H8A H 0.4844 0.4655 -0.3111 0.082 Uiso 1 1 calc R U . . .
H8B H 0.5141 0.3618 -0.2935 0.082 Uiso 1 1 calc R U . . .
H8C H 0.5584 0.4488 -0.2553 0.082 Uiso 1 1 calc R U . . .
C9 C 0.46258(12) 0.37164(17) 0.00816(13) 0.0366(5) Uani 1 1 d . . . . .
H9A H 0.4317 0.4051 0.0469 0.055 Uiso 1 1 calc R U . . .
H9B H 0.5180 0.3927 0.0098 0.055 Uiso 1 1 calc R U . . .
H9C H 0.4604 0.3046 0.0185 0.055 Uiso 1 1 calc R U . . .
C10 C 0.11262(11) 0.35503(14) 0.10134(10) 0.0242(4) Uani 1 1 d . . . . .
C11 C 0.11114(12) 0.33749(15) 0.18032(11) 0.0286(4) Uani 1 1 d . . . . .
C12 C 0.03744(12) 0.33066(15) 0.21622(12) 0.0316(5) Uani 1 1 d . . . . .
H12 H 0.0359 0.3185 0.2695 0.038 Uiso 1 1 calc R U . . .
C13 C -0.03353(12) 0.34091(15) 0.17725(12) 0.0306(5) Uani 1 1 d . . . . .
C14 C -0.03027(12) 0.35971(15) 0.09951(12) 0.0292(4) Uani 1 1 d . . . . .
H14 H -0.0785 0.3678 0.0721 0.035 Uiso 1 1 calc R U . . .
C15 C 0.04181(12) 0.36709(14) 0.06072(11) 0.0265(4) Uani 1 1 d . . . . .
C16 C 0.18645(13) 0.32545(18) 0.22549(11) 0.0384(5) Uani 1 1 d . . . . .
H16A H 0.1764 0.3410 0.2791 0.058 Uiso 1 1 calc R U . . .
H16B H 0.2276 0.3669 0.2051 0.058 Uiso 1 1 calc R U . . .
H16C H 0.2044 0.2607 0.2217 0.058 Uiso 1 1 calc R U . . .
C17 C -0.11248(13) 0.33210(18) 0.21770(14) 0.0400(5) Uani 1 1 d . . . . .
H17A H -0.1103 0.3658 0.2663 0.060 Uiso 1 1 calc R U . . .
H17B H -0.1238 0.2662 0.2274 0.060 Uiso 1 1 calc R U . . .
H17C H -0.1546 0.3585 0.1856 0.060 Uiso 1 1 calc R U . . .
C18 C 0.04143(12) 0.38621(17) -0.02392(11) 0.0329(5) Uani 1 1 d . . . . .
H18A H -0.0135 0.3934 -0.0416 0.049 Uiso 1 1 calc R U . . .
H18B H 0.0665 0.3341 -0.0509 0.049 Uiso 1 1 calc R U . . .
H18C H 0.0711 0.4436 -0.0343 0.049 Uiso 1 1 calc R U . . .
C19 C 0.3176(6) 0.2174(6) 0.0850(5) 0.030(2) Uani 0.879(4) 1 d . U P A 1
H19A H 0.3565 0.1814 0.0557 0.045 Uiso 0.879(4) 1 calc R U P A 1
H19B H 0.2865 0.1752 0.1173 0.045 Uiso 0.879(4) 1 calc R U P A 1
H19C H 0.3453 0.2629 0.1171 0.045 Uiso 0.879(4) 1 calc R U P A 1
Cl1A Cl 0.3222(13) 0.2131(16) 0.0886(12) 0.049(6) Uani 0.121(4) 1 d D . P A 2
C20 C 0.20370(14) 0.19580(17) -0.04641(13) 0.0383(5) Uani 1 1 d . U . . .
H20A H 0.2449 0.1603 -0.0733 0.058 Uiso 1 1 calc R U . . .
H20B H 0.1713 0.2299 -0.0835 0.058 Uiso 1 1 calc R U . . .
H20C H 0.1698 0.1529 -0.0175 0.058 Uiso 1 1 calc R U . . .
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'
Cl Cl 0.1484 0.1585 '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'
P P 0.1023 0.0942 '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'
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
N2 P1 N1 85.65(8) . .
N2 P1 Cl1 103.09(6) . .
N1 P1 Cl1 102.09(6) . .
Cl1 P1 Si1 106.47(3) . .
N1 Si1 N2 82.14(8) . .
N1 Si1 C19 114.1(3) . .
N2 Si1 C19 115.1(3) . .
N1 Si1 C20 116.88(10) . .
N2 Si1 C20 115.85(9) . .
C19 Si1 C20 110.4(3) . .
N1 Si1 Cl1A 114.0(7) . .
N2 Si1 Cl1A 115.5(7) . .
C20 Si1 Cl1A 110.2(7) . .
C19 Si1 P1 122.7(3) . .
C20 Si1 P1 126.86(8) . .
Cl1A Si1 P1 122.9(7) . .
C1 N1 P1 127.95(13) . .
C1 N1 Si1 134.76(14) . .
P1 N1 Si1 96.11(8) . .
C10 N2 P1 126.99(14) . .
C10 N2 Si1 135.45(14) . .
P1 N2 Si1 96.09(8) . .
C2 C1 C6 120.55(18) . .
C2 C1 N1 119.47(17) . .
C6 C1 N1 119.94(18) . .
C3 C2 C1 118.84(19) . .
C3 C2 C7 119.67(19) . .
C1 C2 C7 121.48(18) . .
C4 C3 C2 121.7(2) . .
C4 C3 H3 119.2 . .
C2 C3 H3 119.2 . .
C5 C4 C3 118.38(19) . .
C5 C4 C8 121.0(2) . .
C3 C4 C8 120.6(2) . .
C4 C5 C6 122.5(2) . .
C4 C5 H5 118.8 . .
C6 C5 H5 118.8 . .
C5 C6 C1 118.0(2) . .
C5 C6 C9 119.93(19) . .
C1 C6 C9 122.05(18) . .
C2 C7 H7A 109.5 . .
C2 C7 H7B 109.5 . .
H7A C7 H7B 109.5 . .
C2 C7 H7C 109.5 . .
H7A C7 H7C 109.5 . .
H7B C7 H7C 109.5 . .
C4 C8 H8A 109.5 . .
C4 C8 H8B 109.5 . .
H8A C8 H8B 109.5 . .
C4 C8 H8C 109.5 . .
H8A C8 H8C 109.5 . .
H8B C8 H8C 109.5 . .
C6 C9 H9A 109.5 . .
C6 C9 H9B 109.5 . .
H9A C9 H9B 109.5 . .
C6 C9 H9C 109.5 . .
H9A C9 H9C 109.5 . .
H9B C9 H9C 109.5 . .
C15 C10 C11 120.54(17) . .
C15 C10 N2 119.78(16) . .
C11 C10 N2 119.68(17) . .
C12 C11 C10 118.20(18) . .
C12 C11 C16 120.21(18) . .
C10 C11 C16 121.58(18) . .
C13 C12 C11 122.48(18) . .
C13 C12 H12 118.8 . .
C11 C12 H12 118.8 . .
C12 C13 C14 118.09(18) . .
C12 C13 C17 121.19(19) . .
C14 C13 C17 120.72(19) . .
C13 C14 C15 121.81(19) . .
C13 C14 H14 119.1 . .
C15 C14 H14 119.1 . .
C14 C15 C10 118.86(18) . .
C14 C15 C18 119.33(18) . .
C10 C15 C18 121.80(17) . .
C11 C16 H16A 109.5 . .
C11 C16 H16B 109.5 . .
H16A C16 H16B 109.5 . .
C11 C16 H16C 109.5 . .
H16A C16 H16C 109.5 . .
H16B C16 H16C 109.5 . .
C13 C17 H17A 109.5 . .
C13 C17 H17B 109.5 . .
H17A C17 H17B 109.5 . .
C13 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 . .
Si1 C19 H19A 109.5 . .
Si1 C19 H19B 109.5 . .
H19A C19 H19B 109.5 . .
Si1 C19 H19C 109.5 . .
H19A C19 H19C 109.5 . .
H19B C19 H19C 109.5 . .
Si1 C20 H20A 109.5 . .
Si1 C20 H20B 109.5 . .
H20A C20 H20B 109.5 . .
Si1 C20 H20C 109.5 . .
H20A C20 H20C 109.5 . .
H20B C20 H20C 109.5 . .
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
Cl1 P1 2.1813(7) .
P1 N2 1.6854(17) .
P1 N1 1.6857(17) .
P1 Si1 2.5509(9) .
Si1 N1 1.7436(17) .
Si1 N2 1.7445(17) .
Si1 C19 1.831(8) .
Si1 C20 1.835(2) .
Si1 Cl1A 1.948(15) .
N1 C1 1.434(2) .
N2 C10 1.435(2) .
C1 C2 1.403(3) .
C1 C6 1.405(3) .
C2 C3 1.391(3) .
C2 C7 1.512(3) .
C3 C4 1.387(3) .
C3 H3 0.9500 .
C4 C5 1.380(3) .
C4 C8 1.514(3) .
C5 C6 1.395(3) .
C5 H5 0.9500 .
C6 C9 1.503(3) .
C7 H7A 0.9800 .
C7 H7B 0.9800 .
C7 H7C 0.9800 .
C8 H8A 0.9800 .
C8 H8B 0.9800 .
C8 H8C 0.9800 .
C9 H9A 0.9800 .
C9 H9B 0.9800 .
C9 H9C 0.9800 .
C10 C15 1.398(3) .
C10 C11 1.407(3) .
C11 C12 1.393(3) .
C11 C16 1.503(3) .
C12 C13 1.383(3) .
C12 H12 0.9500 .
C13 C14 1.390(3) .
C13 C17 1.510(3) .
C14 C15 1.393(3) .
C14 H14 0.9500 .
C15 C18 1.508(3) .
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 .
C19 H19A 0.9800 .
C19 H19B 0.9800 .
C19 H19C 0.9800 .
C20 H20A 0.9800 .
C20 H20B 0.9800 .
C20 H20C 0.9800 .
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
N2 P1 N1 C1 167.78(17) . . . .
Cl1 P1 N1 C1 -89.75(16) . . . .
Si1 P1 N1 C1 169.0(2) . . . .
N2 P1 N1 Si1 -1.21(8) . . . .
Cl1 P1 N1 Si1 101.26(6) . . . .
N2 Si1 N1 C1 -166.58(19) . . . .
C19 Si1 N1 C1 79.4(4) . . . .
C20 Si1 N1 C1 -51.5(2) . . . .
Cl1A Si1 N1 C1 79.0(8) . . . .
P1 Si1 N1 C1 -167.8(2) . . . .
N2 Si1 N1 P1 1.18(8) . . . .
C19 Si1 N1 P1 -112.8(3) . . . .
C20 Si1 N1 P1 116.23(10) . . . .
Cl1A Si1 N1 P1 -113.3(8) . . . .
N1 P1 N2 C10 -166.60(16) . . . .
Cl1 P1 N2 C10 91.98(15) . . . .
Si1 P1 N2 C10 -167.8(2) . . . .
N1 P1 N2 Si1 1.21(8) . . . .
Cl1 P1 N2 Si1 -100.21(6) . . . .
N1 Si1 N2 C10 164.92(19) . . . .
C19 Si1 N2 C10 -82.1(4) . . . .
C20 Si1 N2 C10 48.8(2) . . . .
Cl1A Si1 N2 C10 -82.2(8) . . . .
P1 Si1 N2 C10 166.1(2) . . . .
N1 Si1 N2 P1 -1.18(8) . . . .
C19 Si1 N2 P1 111.8(3) . . . .
C20 Si1 N2 P1 -117.30(10) . . . .
Cl1A Si1 N2 P1 111.7(8) . . . .
P1 N1 C1 C2 -69.2(2) . . . .
Si1 N1 C1 C2 95.2(2) . . . .
P1 N1 C1 C6 113.02(19) . . . .
Si1 N1 C1 C6 -82.5(2) . . . .
C6 C1 C2 C3 2.3(3) . . . .
N1 C1 C2 C3 -175.40(19) . . . .
C6 C1 C2 C7 -179.0(2) . . . .
N1 C1 C2 C7 3.2(3) . . . .
C1 C2 C3 C4 0.6(3) . . . .
C7 C2 C3 C4 -178.1(2) . . . .
C2 C3 C4 C5 -2.5(3) . . . .
C2 C3 C4 C8 175.2(2) . . . .
C3 C4 C5 C6 1.6(3) . . . .
C8 C4 C5 C6 -176.1(2) . . . .
C4 C5 C6 C1 1.2(3) . . . .
C4 C5 C6 C9 -179.9(2) . . . .
C2 C1 C6 C5 -3.2(3) . . . .
N1 C1 C6 C5 174.51(18) . . . .
C2 C1 C6 C9 178.0(2) . . . .
N1 C1 C6 C9 -4.3(3) . . . .
P1 N2 C10 C15 69.7(2) . . . .
Si1 N2 C10 C15 -92.9(2) . . . .
P1 N2 C10 C11 -111.1(2) . . . .
Si1 N2 C10 C11 86.3(2) . . . .
C15 C10 C11 C12 1.3(3) . . . .
N2 C10 C11 C12 -177.89(18) . . . .
C15 C10 C11 C16 -179.2(2) . . . .
N2 C10 C11 C16 1.6(3) . . . .
C10 C11 C12 C13 -0.3(3) . . . .
C16 C11 C12 C13 -179.8(2) . . . .
C11 C12 C13 C14 -0.7(3) . . . .
C11 C12 C13 C17 179.4(2) . . . .
C12 C13 C14 C15 0.8(3) . . . .
C17 C13 C14 C15 -179.2(2) . . . .
C13 C14 C15 C10 0.1(3) . . . .
C13 C14 C15 C18 179.1(2) . . . .
C11 C10 C15 C14 -1.2(3) . . . .
N2 C10 C15 C14 177.99(18) . . . .
C11 C10 C15 C18 179.9(2) . . . .
N2 C10 C15 C18 -1.0(3) . . . .
