#------------------------------------------------------------------------------
#$Date: 2018-10-05 15:19:55 +0300 (Fri, 05 Oct 2018) $
#$Revision: 211332 $
#$URL: file:///home/coder/svn-repositories/cod/cif/4/32/09/4320905.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_4320905
loop_
_publ_author_name
'Philip E. Collier'
'Stephen M. Pugh'
'Howard S. C. Clark'
'Jason B. Love'
'Alexander J. Blake'
'F. Geoffrey N. Cloke'
'Philip Mountford'
_publ_contact_author
;
 Dr P. Mountford           
 Inorganic Chemistry Laboratory
 South Parks Road
 Oxford
 OX1 3QR
 UK
;
_publ_contact_author_email       Philip.Mountford@chem.ox.ac.uk
_publ_contact_author_fax         '+44 1865 272690'
_publ_contact_author_phone       '+44 1865 272679'
_publ_section_title
;
 Titanium and Niobium Imido Complexes Derived from Diamidoamine Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2001
_journal_page_last               2005
_journal_paper_doi               10.1021/ic991014c
_journal_volume                  39
_journal_year                    2000
_chemical_formula_moiety         ' C22 H50 Cl2 N5 Nb1 Si3 '
_chemical_formula_sum            'C22 H50 Cl2 N5 Nb Si3'
_chemical_formula_weight         632.75
_chemical_name_systematic
;
 [Nb(NBu-t)Cl2(py){eta2-N(SiMe3)CH2CH2N(H)CH2CH2(SiMe3)2}]
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_cell_angle_alpha                90
_cell_angle_beta                 104.989(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.0658(11)
_cell_length_b                   25.1387(24)
_cell_length_c                   15.1849(15)
_cell_measurement_reflns_used    34
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      20.2
_cell_measurement_theta_min      13.1
_cell_volume                     3342.9(6)
_computing_molecular_graphics    'CAMERON (Watkin, Prout and Pearce, 1996)'
_computing_publication_material
;
CRYSTALS Issue 10 (Watkin et al, 1996)
;
_computing_structure_refinement
;
CRYSTALS Issue 10 (Watkin et al, 1996)
;
_computing_structure_solution    'SIR92 (Altomare, et al, 1994)'
_diffrn_ambient_temperature      150(1)
_diffrn_measurement_device       'STOE STADI4 4-circle-diffractometer'
_diffrn_measurement_method
; Scan width (omega) = 1.07 - 1.53, scan ratio 2theta:omega = 1.00
  I(Net) and sigma(I) from profile fitting (Clegg, 1981)
;
_diffrn_radiation_collimation    '0.8 mm'
_diffrn_radiation_detector       'NaI(Tl) scintillation counter'
_diffrn_radiation_monochromator  'planar graphite'
_diffrn_radiation_polarisn_norm  90
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.03
_diffrn_reflns_av_sigmaI/netI    0.0411
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6412
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.51
_diffrn_standards_decay_%        'variation +/- 5.6'
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.63
_exptl_absorpt_correction_T_max  0.5866
_exptl_absorpt_correction_T_min  0.4941
_exptl_absorpt_correction_type   'psi scans'
_exptl_absorpt_process_details
;
    Psi Scan Reflections used      

    H   K   L   2Theta   Chi   Imin/Imax
   -1  -4  -1     8.8   -75.7    0.880
    1   5   0     9.3    83.6    0.915
   -1  -6  -2    12.7   -71.2    0.925
   -2  -6  -1    14.2   -74.4    0.907
   -2  -9  -1    18.0   -85.7    0.838
   -3 -10  -1    22.1   -78.7    0.891
   -3 -12  -1    24.7   -83.8    0.897
   -2 -15  -2    27.3   -81.5    0.785
   -4 -17   2    33.3   -74.2    0.886
;
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.26
_exptl_crystal_density_meas      ?
_exptl_crystal_description       'irregular block'
_exptl_crystal_F_000             1336
_exptl_crystal_size_max          0.660
_exptl_crystal_size_mid          0.540
_exptl_crystal_size_min          0.420
_refine_diff_density_max         1.49
_refine_diff_density_min         -0.86
_refine_ls_abs_structure_Flack   none
_refine_ls_extinction_coef       none
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.272
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     298
_refine_ls_number_reflns         5864
_refine_ls_number_restraints     18
_refine_ls_R_factor_all          0.0512
_refine_ls_R_factor_obs          0.0425
_refine_ls_shift/esd_max         0.03091
_refine_ls_structure_factor_coef F**2
_refine_ls_weighting_scheme      'Chebychev polynomial'
_refine_ls_wR_factor_all         0.0479
_refine_ls_wR_factor_obs         0.0430
_reflns_d_resolution_high        0.840
_reflns_d_resolution_low         8.111
_reflns_limit_h_max              10
_reflns_limit_h_min              -10
_reflns_limit_k_max              29
_reflns_limit_k_min              0
_reflns_limit_l_max              18
_reflns_limit_l_min              0
_reflns_number_observed          5000
_reflns_number_total             5864
_reflns_observed_criterion       >2.00\s(I)
_cod_data_source_file            ic991014c_1.cif
_cod_data_source_block           COMPOUND_3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_atom_sites_solution_primary' value 'direct methods' was changed to
'direct'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_original_cell_volume        3342.9(5)
_cod_original_sg_symbol_H-M      'P 1 21/n 1 '
_cod_original_formula_sum        ' C22 H50 Cl2 N5 Nb1 Si3 '
_cod_database_code               4320905
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,-z
-x+1/2,y+1/2,-z+1/2
x+1/2,-y+1/2,z+1/2
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_occupancy
_atom_site_thermal_displace_type
NB1 -0.04463(3) 0.36862(1) 0.58348(2) 0.0203 1.0000 Uani
Cl1 -0.19958(8) 0.29430(3) 0.50693(5) 0.0320 1.0000 Uani
Cl2 0.12003(8) 0.44823(3) 0.60416(5) 0.0297 1.0000 Uani
N1 0.0351(3) 0.33657(9) 0.6887(1) 0.0268 1.0000 Uani
N2 0.1531(2) 0.33178(9) 0.5183(1) 0.0245 1.0000 Uani
N3 -0.2166(2) 0.41122(9) 0.6064(1) 0.0215 1.0000 Uani
N4 -0.1380(2) 0.41126(9) 0.4373(1) 0.0254 1.0000 Uani
N5 -0.1158(3) 0.40553(8) 0.1904(1) 0.0303 1.0000 Uani
Si1 -0.25942(9) 0.41720(3) 0.71238(5) 0.0242 1.0000 Uani
Si2 -0.2813(1) 0.41871(4) 0.10619(5) 0.0434 1.0000 Uani
Si3 0.04751(9) 0.37419(4) 0.17547(5) 0.0338 1.0000 Uani
C1 0.1195(3) 0.3033(1) 0.7635(2) 0.0385 1.0000 Uani
C2 0.1081(4) 0.3242(1) 0.8554(2) 0.0474 1.0000 Uani
C3 0.0509(6) 0.2475(1) 0.7489(3) 0.0738 1.0000 Uani
C4 0.2862(4) 0.3032(2) 0.7608(3) 0.1018 1.0000 Uani
C5 0.2967(3) 0.3505(1) 0.5453(2) 0.0318 1.0000 Uani
C6 0.4172(3) 0.3292(1) 0.5167(2) 0.0341 1.0000 Uani
C7 0.3894(3) 0.2869(1) 0.4576(2) 0.0371 1.0000 Uani
C8 0.2436(4) 0.2671(1) 0.4290(2) 0.0381 1.0000 Uani
C9 0.1292(3) 0.2904(1) 0.4614(2) 0.0308 1.0000 Uani
C10 -0.2878(3) 0.4497(1) 0.5338(2) 0.0317 1.0000 Uani
C11 -0.2940(3) 0.4280(1) 0.4396(2) 0.0313 1.0000 Uani
C12 -0.1344(3) 0.3875(1) 0.3482(2) 0.0276 1.0000 Uani
C13 -0.1122(3) 0.4292(1) 0.2800(2) 0.0296 1.0000 Uani
C14 -0.0987(3) 0.4487(1) 0.7970(2) 0.0335 1.0000 Uani
C15 -0.4297(3) 0.4608(1) 0.7028(2) 0.0364 1.0000 Uani
C16 -0.3086(3) 0.3506(1) 0.7499(2) 0.0326 1.0000 Uani
C17 -0.4477(6) 0.4232(2) 0.1562(3) 0.048(1) 0.5000 Uiso
C18 -0.2634(4) 0.4815(2) 0.0487(3) 0.048(1) 0.5000 Uiso
C19 -0.3191(5) 0.3632(2) 0.0179(4) 0.048(1) 0.5000 Uiso
C171 -0.4534(6) 0.4032(2) 0.1484(3) 0.060(2) 0.5000 Uiso
C181 -0.2886(5) 0.4912(3) 0.0735(4) 0.060(2) 0.5000 Uiso
C191 -0.2889(4) 0.3785(2) 0.0046(4) 0.060(2) 0.5000 Uiso
C20 0.2135(4) 0.3902(1) 0.2729(2) 0.0452 1.0000 Uani
C21 0.0273(5) 0.3010(2) 0.1692(3) 0.0655 1.0000 Uani
C22 0.0938(4) 0.3983(2) 0.0697(2) 0..0629 1.0000 Uani
H1 -0.0758(2) 0.44295(9) 0.4459(1) 0.035(8) 1.0000 Uiso
H21 0.1644(4) 0.3015(1) 0.9032(2) 0.0598 1.0000 Uiso
H22 0.1497(4) 0.3595(1) 0.8641(2) 0.0598 1.0000 Uiso
H23 0.0029(4) 0.3251(1) 0.8568(2) 0.0598 1.0000 Uiso
H31 0.1037(6) 0.2245(1) 0.7972(3) 0.0743 1.0000 Uiso
H32 -0.0549(6) 0.2495(1) 0.7489(3) 0.0743 1.0000 Uiso
H33 0.0594(6) 0.2337(1) 0.6915(3) 0.0743 1.0000 Uiso
H41 0.3455(4) 0.2816(2) 0.8092(3) 0.1127 1.0000 Uiso
H42 0.3236(4) 0.3391(2) 0.7679(3) 0.1127 1.0000 Uiso
H43 0.2945(4) 0.2895(2) 0.7033(3) 0.1127 1.0000 Uiso
H51 0.3182(3) 0.3828(1) 0.5900(2) 0.037(4) 1.0000 Uiso
H61 0.5237(3) 0.3464(1) 0.5417(2) 0.037(4) 1.0000 Uiso
H71 0.4751(3) 0.2719(1) 0.4339(2) 0.037(4) 1.0000 Uiso
H81 0.2234(4) 0.2373(1) 0.3869(2) 0.037(4) 1.0000 Uiso
H91 0.0203(3) 0.2733(1) 0.4458(2) 0.037(4) 1.0000 Uiso
H101 -0.2240(3) 0.4838(1) 0.5448(2) 0.041(6) 1.0000 Uiso
H102 -0.3986(3) 0.4557(1) 0.5334(2) 0.041(6) 1.0000 Uiso
H111 -0.3601(3) 0.3941(1) 0.4241(2) 0.024(5) 1.0000 Uiso
H112 -0.3230(3) 0.4594(1) 0.3947(2) 0.024(5) 1.0000 Uiso
H121 -0.0447(3) 0.3604(1) 0.3612(2) 0.013(4) 1.0000 Uiso
H122 -0.2258(3) 0.3692(1) 0.3243(2) 0.013(4) 1.0000 Uiso
H131 -0.0091(3) 0.4490(1) 0.3062(2) 0.034(6) 1.0000 Uiso
H132 -0.1898(3) 0.4586(1) 0.2762(2) 0.034(6) 1.0000 Uiso
H141 -0.1213 0.4518 0.8551 0.0447 1.0000 Uiso
H142 -0.0777 0.4836 0.7766 0.0447 1.0000 Uiso
H143 -0.0067 0.4273 0.8047 0.0447 1.0000 Uiso
H151 -0.4531 0.4640 0.7612 0.0498 1.0000 Uiso
H152 -0.4108 0.4960 0.6825 0.0498 1.0000 Uiso
H153 -0.5178 0.4462 0.6596 0.0498 1.0000 Uiso
H161 -0.3320 0.3535 0.8084 0.0463 1.0000 Uiso
H162 -0.3957 0.3363 0.7064 0.0463 1.0000 Uiso
H163 -0.2235 0.3266 0.7561 0.0463 1.0000 Uiso
H171 -0.5401 0.4312 0.1095 0.0668 0.5000 Uiso
H172 -0.4324 0.4522 0.2009 0.0668 0.5000 Uiso
H173 -0.4618 0.3910 0.1863 0.0668 0.5000 Uiso
H181 -0.3540 0.4896 0.0005 0.0668 0.5000 Uiso
H182 -0.2439 0.5113 0.0905 0.0668 0.5000 Uiso
H183 -0.1776 0.4803 0.0198 0.0668 0.5000 Uiso
H191 -0.4118 0.3700 -0.0290 0.0668 0.5000 Uiso
H192 -0.2358 0.3596 -0.0098 0.0668 0.5000 Uiso
H193 -0.3320 0.3294 0.0466 0.0668 0.5000 Uiso
H1711 -0.5459 0.4113 0.1017 0.0742 0.5000 Uiso
H1712 -0.4535 0.4258 0.2011 0.0742 0.5000 Uiso
H1713 -0.4546 0.3671 0.1660 0.0742 0.5000 Uiso
H1811 -0.3790 0.4984 0.0247 0.0742 0.5000 Uiso
H1812 -0.2851 0.5136 0.1234 0.0742 0.5000 Uiso
H1813 -0.2002 0.4996 0.0487 0.0742 0.5000 Uiso
H1911 -0.3814 0.3840 -0.0433 0.0742 0.5000 Uiso
H1912 -0.2025 0.3839 -0.0203 0.0742 0.5000 Uiso
H1913 -0.2882 0.3394 0.0193 0.0742 0.5000 Uiso
H201 0.3043 0.3731 0.2651 0.0581 1.0000 Uiso
H202 0.2304 0.4281 0.2770 0.0581 1.0000 Uiso
H203 0.1946 0.3780 0.3294 0.0581 1.0000 Uiso
H211 0.1183 0.2844 0.1618 0.0775 1.0000 Uiso
H212 0.0081 0.2873 0.2259 0.0775 1.0000 Uiso
H213 -0.0580 0.2906 0.1199 0.0775 1.0000 Uiso
H221 0.1841 0.3812 0.0622 0.0766 1.0000 Uiso
H222 0.1114 0.4365 0.0738 0.0766 1.0000 Uiso
H223 0.0101 0.3913 0.0176 0.0766 1.0000 Uiso
loop_
_atom_type_symbol
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_Cromer_Mann_a1
_atom_type_scat_Cromer_Mann_b1
_atom_type_scat_Cromer_Mann_a2
_atom_type_scat_Cromer_Mann_b2
_atom_type_scat_Cromer_Mann_a3
_atom_type_scat_Cromer_Mann_b3
_atom_type_scat_Cromer_Mann_a4
_atom_type_scat_Cromer_Mann_b4
_atom_type_scat_Cromer_Mann_c
_atom_type_scat_source
'C   ' 0.0020 0.0020 2.3100 20.8439 1.0200 10.2075 1.5886 0.5687 0.8650 51.6512
0.2156 International_Tables_Vol_IV_Table_2.2B
'H   ' 0.0000 0.0000 0.4930 10.5109 0.3229 26.1257 0.1402 3.1424 0.0408 57.7997
0.0030 International_Tables_Vol_IV_Table_2.2B
'Cl  ' 0.1320 0.1590 11.4604 0.0104 7.1964 1.1662 6.2556 18.5194 1.6455 47.7784
-9.5574 International_Tables_Vol_IV_Table_2.2B
'N   ' 0.0040 0.0030 12.2126 0.0057 3.1322 9.8933 2.0125 28.9975 1.1663 0.5826
-11.5290 International_Tables_Vol_IV_Table_2.2B
'Nb  ' -2.1970 0.6210 17.6142 1.1887 12.0144 11.7660 4.0418 0.2048 3.5335
69.7957 3.7559 International_Tables_Vol_IV_Table_2.2B
'Si  ' 0.0720 0.0710 6.2915 2.4386 3.0353 32.3337 1.9891 0.6785 1.5410 81.6937
1.1407 International_Tables_Vol_IV_Table_2.2B
loop_
_geom_angle_atom_site_label_1
_geom_angle_site_symmetry_1
_geom_angle_atom_site_label_2
_geom_angle_site_symmetry_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_3
_geom_angle
_geom_angle_publ_flag
Cl1 . Nb1 . Cl2 . 159.24(3) yes
Cl1 . Nb1 . N1 . 97.58(8) yes
Cl2 . Nb1 . N1 . 99.33(8) yes
Cl1 . Nb1 . N2 . 84.79(6) yes
Cl2 . Nb1 . N2 . 82.87(6) yes
N1 . Nb1 . N2 . 91.26(9) yes
Cl1 . Nb1 . N3 . 96.56(6) yes
Cl2 . Nb1 . N3 . 90.96(7) yes
N1 . Nb1 . N3 . 104.02(9) yes
N2 . Nb1 . N3 . 164.29(8) yes
Cl1 . Nb1 . N4 . 83.13(6) yes
Cl2 . Nb1 . N4 . 79.25(6) yes
N1 . Nb1 . N4 . 176.26(9) yes
N2 . Nb1 . N4 . 85.14(7) yes
N3 . Nb1 . N4 . 79.51(8) yes
Nb1 . N1 . C1 . 167.1(2) yes
Nb1 . N2 . C5 . 119.9(2) yes
Nb1 . N2 . C9 . 123.1(2) yes
C5 . N2 . C9 . 116.8(2) yes
Nb1 . N3 . Si1 . 125.0(1) yes
Nb1 . N3 . C10 . 115.5(2) yes
Si1 . N3 . C10 . 117.9(2) yes
Nb1 . N4 . C11 . 102.3(1) yes
Nb1 . N4 . C12 . 125.0(2) yes
C11 . N4 . C12 . 112.4(2) yes
Nb1 . N4 . H1 . 100.83(6) no
C11 . N4 . H1 . 106.8(2) no
C12 . N4 . H1 . 107.9(1) no
Si2 . N5 . Si3 . 126.4(1) yes
Si2 . N5 . C13 . 114.3(2) yes
Si3 . N5 . C13 . 119.0(2) yes
N3 . Si1 . C14 . 110.6(1) yes
N3 . Si1 . C15 . 110.7(1) yes
C14 . Si1 . C15 . 106.8(1) yes
N3 . Si1 . C16 . 109.3(1) yes
C14 . Si1 . C16 . 112.3(1) yes
C15 . Si1 . C16 . 107.1(1) yes
N5 . Si2 . C17 . 110.45(9) yes
N5 . Si2 . C18 . 110.51(9) yes
C17 . Si2 . C18 . 108.88(9) yes
N5 . Si2 . C19 . 110.10(9) yes
C17 . Si2 . C19 . 108.34(9) yes
C18 . Si2 . C19 . 108.51(9) yes
N5 . Si2 . C171 . 110.29(9) yes
N5 . Si2 . C181 . 110.13(9) yes
C171 . Si2 . C181 . 108.32(9) yes
N5 . Si2 . C191 . 110.69(9) yes
C171 . Si2 . C191 . 108.65(9) yes
C181 . Si2 . C191 . 108.71(9) yes
N5 . Si3 . C20 . 109.8(1) yes
N5 . Si3 . C21 . 112.4(2) yes
C20 . Si3 . C21 . 107.7(2) yes
N5 . Si3 . C22 . 110.7(1) yes
C20 . Si3 . C22 . 107.4(2) yes
C21 . Si3 . C22 . 108.7(2) yes
N1 . C1 . C2 . 111.8(3) yes
N1 . C1 . C3 . 107.6(3) yes
C2 . C1 . C3 . 109.2(3) yes
N1 . C1 . C4 . 107.7(3) yes
C2 . C1 . C4 . 109.2(3) yes
C3 . C1 . C4 . 111.4(3) yes
N2 . C5 . C6 . 123.4(3) yes
C5 . C6 . C7 . 118.6(3) yes
C6 . C7 . C8 . 119.1(3) yes
C7 . C8 . C9 . 118.7(3) yes
N2 . C9 . C8 . 123.3(3) yes
N3 . C10 . C11 . 111.6(2) yes
N4 . C11 . C10 . 108.7(2) yes
N4 . C12 . C13 . 112.3(2) yes
N5 . C13 . C12 . 111.9(2) yes
loop_
_geom_bond_atom_site_label_1
_geom_bond_site_symmetry_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
Nb1 . Cl1 . 2.4434(8) yes
Nb1 . Cl2 . 2.4678(7) yes
Nb1 . N1 . 1.768(2) yes
Nb1 . N2 . 2.442(2) yes
Nb1 . N3 . 1.995(2) yes
Nb1 . N4 . 2.413(2) yes
N1 . C1 . 1.458(3) yes
N2 . C5 . 1.345(3) yes
N2 . C9 . 1.335(3) yes
N3 . Si1 . 1.757(2) yes
N3 . C10 . 1.483(3) yes
N4 . C11 . 1.485(3) yes
N4 . C12 . 1.486(3) yes
N4 . H1 . 0.961(7) no
N5 . Si2 . 1.732(2) yes
N5 . Si3 . 1.743(2) yes
N5 . C13 . 1.479(3) yes
Si1 . C14 . 1.852(3) yes
Si1 . C15 . 1.869(3) yes
Si1 . C16 . 1.860(3) yes
Si2 . C17 . 1.860(6) yes
Si2 . C18 . 1.831(6) yes
Si2 . C19 . 1.904(6) yes
Si2 . C171 . 1.875(7) yes
Si2 . C181 . 1.885(7) yes
Si2 . C191 . 1.831(7) yes
Si3 . C20 . 1.861(3) yes
Si3 . C21 . 1.848(4) yes
Si3 . C22 . 1.863(4) yes
C1 . C2 . 1.519(4) yes
C1 . C3 . 1.526(5) yes
C1 . C4 . 1.523(4) yes
C5 . C6 . 1.383(4) yes
C6 . C7 . 1.372(4) yes
C7 . C8 . 1.375(4) yes
C8 . C9 . 1.387(4) yes
C10 . C11 . 1.518(4) yes
C12 . C13 . 1.523(4) yes
