#------------------------------------------------------------------------------
#$Date: 2016-03-26 23:00:42 +0200 (Sat, 26 Mar 2016) $
#$Revision: 180526 $
#$URL: svn://www.crystallography.net/cod/cif/7/21/95/7219590.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_7219590
loop_
_publ_author_name
'Jawaria, Rifat'
'Hussain, Mazhar'
'Shafiq, Zahid'
'Ahmad, Hafiz Badaruddin'
'Tahir, Muhammad Nawaz'
'Shad, Hazoor Ahmad'
'Naseer, Muhammad Moazzam'
_publ_section_title
;
 Robustness of thioamide dimer synthon, carbon bonding and
 thioamide--thioamide stacking in ferrocene-based thiosemicarbazones
;
_journal_issue                   12
_journal_name_full               CrystEngComm
_journal_page_first              2553
_journal_paper_doi               10.1039/C4CE02566K
_journal_volume                  17
_journal_year                    2015
_chemical_formula_iupac          'C21 H23 Fe N3 O S'
_chemical_formula_moiety         'C21 H23 Fe N3 O S'
_chemical_formula_sum            'C21 H23 Fe N3 O S'
_chemical_formula_weight         421.33
_chemical_name_systematic
;
((1Z)-N-((4-methoxybenzyl)carbamothioyl)ethanehydrazonoyl)ferrocene
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-12-31 deposited with the CCDC.
2015-02-16 downloaded from the CCDC.
;
_cell_angle_alpha                80.533(2)
_cell_angle_beta                 81.1130(10)
_cell_angle_gamma                70.067(2)
_cell_formula_units_Z            2
_cell_length_a                   7.1685(3)
_cell_length_b                   10.3397(4)
_cell_length_c                   14.5960(6)
_cell_measurement_reflns_used    3195
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.000
_cell_measurement_theta_min      1.485
_cell_volume                     997.53(7)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics
'ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009)'
_computing_publication_material
;
WinGX (Farrugia, 1999) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 8.00
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker Kappa APEXII CCD'
_diffrn_measurement_method       ω
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0245
_diffrn_reflns_av_unetI/netI     0.0255
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            14909
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.422
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.876
_exptl_absorpt_correction_T_max  0.859
_exptl_absorpt_correction_T_min  0.806
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.403
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.293
_refine_diff_density_min         -0.211
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3911
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0416
_refine_ls_R_factor_gt           0.0306
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0346P)²+0.2659P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0735
_refine_ls_wR_factor_ref         0.0799
_reflns_number_gt                3195
_reflns_number_total             3911
_reflns_threshold_expression     I>2σ(I)
_cod_data_source_file            c4ce02566k2.cif
_cod_data_source_block           I
_cod_depositor_comments
'Adding full bibliography for 7219588--7219592.cif.'
_cod_database_code               7219590
#BEGIN Tags that were not found in dictionaries:
_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.
;
_shelxl_version_number           2014/6
#END Tags that were not found in dictionaries
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, -z'
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
Fe1 Fe 0.26301(4) 0.05767(3) 0.25858(2) 0.04489(11) Uani 1 1 d . .
S1 S 0.26901(9) 0.53273(6) 0.61357(4) 0.05813(17) Uani 1 1 d . .
O1 O -0.4961(3) 0.3469(2) 0.96158(12) 0.0920(6) Uani 1 1 d . .
N1 N 0.2888(2) 0.23382(15) 0.47602(10) 0.0365(3) Uani 1 1 d . .
N2 N 0.3401(2) 0.33465(15) 0.50779(10) 0.0381(3) Uani 1 1 d . .
H2A H 0.4512 0.3491 0.4871 0.046 Uiso 1 1 calc R U
N3 N 0.0433(2) 0.37954(16) 0.59853(11) 0.0431(4) Uani 1 1 d . .
H3A H 0.0309 0.3122 0.5751 0.052 Uiso 1 1 calc R U
C1 C 0.2659(7) 0.2355(3) 0.17561(19) 0.0936(11) Uani 1 1 d . .
H1 H 0.3026 0.3063 0.1915 0.112 Uiso 1 1 calc R U
C2 C 0.3936(6) 0.1203(3) 0.13334(19) 0.0976(10) Uani 1 1 d . .
H2 H 0.5301 0.1005 0.1168 0.117 Uiso 1 1 calc R U
C3 C 0.2810(7) 0.0415(3) 0.12076(18) 0.1013(12) Uani 1 1 d . .
H3 H 0.3289 -0.0405 0.0936 0.122 Uiso 1 1 calc R U
C4 C 0.0861(7) 0.1039(5) 0.1548(3) 0.1144(13) Uani 1 1 d . .
H4 H -0.0195 0.0710 0.1548 0.137 Uiso 1 1 calc R U
C5 C 0.0735(6) 0.2257(4) 0.1898(2) 0.1064(12) Uani 1 1 d . .
H5 H -0.0406 0.2877 0.2170 0.128 Uiso 1 1 calc R U
C6 C 0.4758(3) -0.06301(19) 0.34130(15) 0.0489(5) Uani 1 1 d . .
H6 H 0.6129 -0.0857 0.3255 0.059 Uiso 1 1 calc R U
C7 C 0.3555(4) -0.1386(2) 0.32532(16) 0.0559(6) Uani 1 1 d . .
H7 H 0.3998 -0.2202 0.2977 0.067 Uiso 1 1 calc R U
C8 C 0.1579(4) -0.0697(2) 0.35823(15) 0.0564(6) Uani 1 1 d . .
H8 H 0.0484 -0.0975 0.3559 0.068 Uiso 1 1 calc R U
C9 C 0.1527(3) 0.0493(2) 0.39570(13) 0.0452(5) Uani 1 1 d . .
H9 H 0.0396 0.1133 0.4221 0.054 Uiso 1 1 calc R U
C10 C 0.3505(3) 0.05424(18) 0.38591(12) 0.0372(4) Uani 1 1 d . .
C11 C 0.4133(3) 0.15924(18) 0.41699(13) 0.0370(4) Uani 1 1 d . .
C12 C 0.6144(3) 0.1698(3) 0.38115(19) 0.0687(7) Uani 1 1 d . .
H12A H 0.6847 0.1668 0.4327 0.103 Uiso 1 1 calc R U
H12B H 0.6000 0.2556 0.3414 0.103 Uiso 1 1 calc R U
H12C H 0.6879 0.0938 0.3462 0.103 Uiso 1 1 calc R U
C13 C 0.2112(3) 0.40999(18) 0.57223(12) 0.0387(4) Uani 1 1 d . .
C14 C -0.1207(3) 0.4501(2) 0.66336(13) 0.0466(5) Uani 1 1 d . .
H14A H -0.2452 0.4637 0.6389 0.056 Uiso 1 1 calc R U
H14B H -0.1124 0.5409 0.6665 0.056 Uiso 1 1 calc R U
C15 C -0.1257(3) 0.37472(19) 0.76112(13) 0.0402(4) Uani 1 1 d . .
C16 C -0.3099(3) 0.3960(2) 0.81388(13) 0.0455(5) Uani 1 1 d . .
H16 H -0.4254 0.4529 0.7881 0.055 Uiso 1 1 calc R U
C17 C -0.3216(4) 0.3329(3) 0.90447(15) 0.0591(6) Uani 1 1 d . .
C18 C -0.1511(5) 0.2483(3) 0.94273(17) 0.0747(7) Uani 1 1 d . .
H18 H -0.1592 0.2058 1.0038 0.090 Uiso 1 1 calc R U
C19 C 0.0299(4) 0.2270(3) 0.89087(18) 0.0713(7) Uani 1 1 d . .
H19 H 0.1447 0.1696 0.9170 0.086 Uiso 1 1 calc R U
C20 C 0.0449(3) 0.2898(2) 0.79967(15) 0.0558(5) Uani 1 1 d . .
H20 H 0.1690 0.2748 0.7649 0.067 Uiso 1 1 calc R U
C21 C -0.6740(4) 0.4416(4) 0.9288(2) 0.1020(11) Uani 1 1 d . .
H21A H -0.6612 0.5324 0.9145 0.153 Uiso 1 1 calc R U
H21B H -0.7836 0.4437 0.9762 0.153 Uiso 1 1 calc R U
H21C H -0.6981 0.4132 0.8736 0.153 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'
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'
S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Fe Fe 0.3463 0.8444 '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
C4 Fe1 C3 39.76(14)
C4 Fe1 C5 40.64(14)
C3 Fe1 C5 67.62(14)
C4 Fe1 C6 156.64(15)
C3 Fe1 C6 122.94(14)
C5 Fe1 C6 161.89(15)
C4 Fe1 C8 105.50(13)
C3 Fe1 C8 121.65(12)
C5 Fe1 C8 120.93(15)
C6 Fe1 C8 68.24(9)
C4 Fe1 C2 67.09(16)
C3 Fe1 C2 39.60(13)
C5 Fe1 C2 67.86(15)
C6 Fe1 C2 109.86(13)
C8 Fe1 C2 158.05(12)
C4 Fe1 C1 67.44(15)
C3 Fe1 C1 67.06(12)
C5 Fe1 C1 40.28(14)
C6 Fe1 C1 126.36(14)
C8 Fe1 C1 158.12(14)
C2 Fe1 C1 40.31(12)
C4 Fe1 C9 122.22(16)
C3 Fe1 C9 157.66(14)
C5 Fe1 C9 107.28(12)
C6 Fe1 C9 68.61(8)
C8 Fe1 C9 40.71(8)
C2 Fe1 C9 160.76(12)
C1 Fe1 C9 124.07(11)
C4 Fe1 C7 120.18(13)
C3 Fe1 C7 106.99(11)
C5 Fe1 C7 155.92(16)
C6 Fe1 C7 40.64(8)
C8 Fe1 C7 40.27(9)
C2 Fe1 C7 123.93(12)
C1 Fe1 C7 161.33(14)
C9 Fe1 C7 68.28(9)
C4 Fe1 C10 159.68(16)
C3 Fe1 C10 159.86(15)
C5 Fe1 C10 124.45(12)
C6 Fe1 C10 41.03(7)
C8 Fe1 C10 68.54(8)
C2 Fe1 C10 125.41(12)
C1 Fe1 C10 110.46(10)
C9 Fe1 C10 40.78(7)
C7 Fe1 C10 68.62(8)
C17 O1 C21 118.0(2)
C11 N1 N2 118.54(15)
C13 N2 N1 118.30(15)
C13 N2 H2A 120.9
N1 N2 H2A 120.9
C13 N3 C14 125.69(16)
C13 N3 H3A 117.2
C14 N3 H3A 117.2
C5 C1 C2 108.1(3)
C5 C1 Fe1 69.63(16)
C2 C1 Fe1 69.83(15)
C5 C1 H1 125.9
C2 C1 H1 125.9
Fe1 C1 H1 126.2
C3 C2 C1 107.8(3)
C3 C2 Fe1 69.95(17)
C1 C2 Fe1 69.87(16)
C3 C2 H2 126.1
C1 C2 H2 126.1
Fe1 C2 H2 125.6
C2 C3 C4 108.9(3)
C2 C3 Fe1 70.45(16)
C4 C3 Fe1 69.78(17)
C2 C3 H3 125.5
C4 C3 H3 125.5
Fe1 C3 H3 125.8
C3 C4 C5 108.5(4)
C3 C4 Fe1 70.46(18)
C5 C4 Fe1 70.05(17)
C3 C4 H4 125.8
C5 C4 H4 125.8
Fe1 C4 H4 125.3
C1 C5 C4 106.7(3)
C1 C5 Fe1 70.09(17)
C4 C5 Fe1 69.31(17)
C1 C5 H5 126.6
C4 C5 H5 126.6
Fe1 C5 H5 125.5
C7 C6 C10 108.13(19)
C7 C6 Fe1 69.88(12)
C10 C6 Fe1 69.99(11)
C7 C6 H6 125.9
C10 C6 H6 125.9
Fe1 C6 H6 125.8
C8 C7 C6 108.25(18)
C8 C7 Fe1 69.74(12)
C6 C7 Fe1 69.47(11)
C8 C7 H7 125.9
C6 C7 H7 125.9
Fe1 C7 H7 126.5
C7 C8 C9 108.49(18)
C7 C8 Fe1 69.99(12)
C9 C8 Fe1 69.77(11)
C7 C8 H8 125.8
C9 C8 H8 125.8
Fe1 C8 H8 126.1
C8 C9 C10 108.05(18)
C8 C9 Fe1 69.52(12)
C10 C9 Fe1 69.92(11)
C8 C9 H9 126.0
C10 C9 H9 126.0
Fe1 C9 H9 126.2
C9 C10 C6 107.07(16)
C9 C10 C11 126.18(17)
C6 C10 C11 126.74(17)
C9 C10 Fe1 69.30(10)
C6 C10 Fe1 68.97(11)
C11 C10 Fe1 127.37(13)
N1 C11 C10 116.01(16)
N1 C11 C12 124.92(17)
C10 C11 C12 119.04(17)
C11 C12 H12A 109.5
C11 C12 H12B 109.5
H12A C12 H12B 109.5
C11 C12 H12C 109.5
H12A C12 H12C 109.5
H12B C12 H12C 109.5
N3 C13 N2 115.65(16)
N3 C13 S1 124.55(14)
N2 C13 S1 119.80(14)
N3 C14 C15 114.61(16)
N3 C14 H14A 108.6
C15 C14 H14A 108.6
N3 C14 H14B 108.6
C15 C14 H14B 108.6
H14A C14 H14B 107.6
C20 C15 C16 119.68(19)
C20 C15 C14 122.44(18)
C16 C15 C14 117.86(17)
C17 C16 C15 120.0(2)
C17 C16 H16 120.0
C15 C16 H16 120.0
O1 C17 C18 115.6(2)
O1 C17 C16 124.2(2)
C18 C17 C16 120.2(2)
C19 C18 C17 119.9(2)
C19 C18 H18 120.1
C17 C18 H18 120.1
C18 C19 C20 120.9(2)
C18 C19 H19 119.6
C20 C19 H19 119.6
C15 C20 C19 119.4(2)
C15 C20 H20 120.3
C19 C20 H20 120.3
O1 C21 H21A 109.5
O1 C21 H21B 109.5
H21A C21 H21B 109.5
O1 C21 H21C 109.5
H21A C21 H21C 109.5
H21B C21 H21C 109.5
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
Fe1 C4 2.018(3)
Fe1 C3 2.026(3)
Fe1 C5 2.027(3)
Fe1 C6 2.029(2)
Fe1 C8 2.031(2)
Fe1 C2 2.033(3)
Fe1 C1 2.033(2)
Fe1 C9 2.034(2)
Fe1 C7 2.035(2)
Fe1 C10 2.0427(18)
S1 C13 1.6837(19)
O1 C17 1.369(3)
O1 C21 1.413(4)
N1 C11 1.282(2)
N1 N2 1.382(2)
N2 C13 1.352(2)
N2 H2A 0.8600
N3 C13 1.330(2)
N3 C14 1.452(2)
N3 H3A 0.8600
C1 C5 1.398(5)
C1 C2 1.401(4)
C1 H1 0.9300
C2 C3 1.375(5)
C2 H2 0.9300
C3 C4 1.375(5)
C3 H3 0.9300
C4 C5 1.405(5)
C4 H4 0.9300
C5 H5 0.9300
C6 C7 1.411(3)
C6 C10 1.427(3)
C6 H6 0.9300
C7 C8 1.400(3)
C7 H7 0.9300
C8 C9 1.414(3)
C8 H8 0.9300
C9 C10 1.421(3)
C9 H9 0.9300
C10 C11 1.464(2)
C11 C12 1.490(3)
C12 H12A 0.9600
C12 H12B 0.9600
C12 H12C 0.9600
C14 C15 1.511(3)
C14 H14A 0.9700
C14 H14B 0.9700
C15 C20 1.379(3)
C15 C16 1.389(3)
C16 C17 1.379(3)
C16 H16 0.9300
C17 C18 1.375(4)
C18 C19 1.364(4)
C18 H18 0.9300
C19 C20 1.387(3)
C19 H19 0.9300
C20 H20 0.9300
C21 H21A 0.9600
C21 H21B 0.9600
C21 H21C 0.9600
loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
_geom_hbond_site_symmetry_A
N2 H2A S1 0.86 2.80 3.6273(16) 161.6 2_666
C12 H12B S1 0.96 2.86 3.467(2) 122.2 2_666
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
C11 N1 N2 C13 -177.93(16)
C5 C1 C2 C3 0.6(3)
Fe1 C1 C2 C3 59.9(2)
C5 C1 C2 Fe1 -59.3(2)
C1 C2 C3 C4 -0.5(3)
Fe1 C2 C3 C4 59.4(2)
C1 C2 C3 Fe1 -59.9(2)
C2 C3 C4 C5 0.2(4)
Fe1 C3 C4 C5 60.0(2)
C2 C3 C4 Fe1 -59.8(2)
C2 C1 C5 C4 -0.5(3)
Fe1 C1 C5 C4 -59.9(2)
C2 C1 C5 Fe1 59.4(2)
C3 C4 C5 C1 0.2(3)
Fe1 C4 C5 C1 60.4(2)
C3 C4 C5 Fe1 -60.2(2)
C10 C6 C7 C8 0.6(2)
Fe1 C6 C7 C8 -59.14(15)
C10 C6 C7 Fe1 59.78(14)
C6 C7 C8 C9 -0.4(2)
Fe1 C7 C8 C9 -59.35(14)
C6 C7 C8 Fe1 58.98(15)
C7 C8 C9 C10 0.0(2)
Fe1 C8 C9 C10 -59.53(13)
C7 C8 C9 Fe1 59.49(15)
C8 C9 C10 C6 0.4(2)
Fe1 C9 C10 C6 -58.85(13)
C8 C9 C10 C11 -178.88(17)
Fe1 C9 C10 C11 121.84(18)
C8 C9 C10 Fe1 59.28(14)
C7 C6 C10 C9 -0.7(2)
Fe1 C6 C10 C9 59.06(13)
C7 C6 C10 C11 178.65(18)
Fe1 C6 C10 C11 -121.64(18)
C7 C6 C10 Fe1 -59.71(14)
N2 N1 C11 C10 -179.99(14)
N2 N1 C11 C12 1.8(3)
C9 C10 C11 N1 16.7(3)
C6 C10 C11 N1 -162.49(18)
Fe1 C10 C11 N1 107.12(18)
C9 C10 C11 C12 -165.0(2)
C6 C10 C11 C12 15.8(3)
Fe1 C10 C11 C12 -74.6(2)
C14 N3 C13 N2 -177.13(16)
C14 N3 C13 S1 2.9(3)
N1 N2 C13 N3 -0.6(2)
N1 N2 C13 S1 179.38(12)
C13 N3 C14 C15 -100.9(2)
N3 C14 C15 C20 30.1(3)
N3 C14 C15 C16 -151.67(17)
C20 C15 C16 C17 0.2(3)
C14 C15 C16 C17 -178.05(19)
C21 O1 C17 C18 174.7(2)
C21 O1 C17 C16 -5.9(4)
C15 C16 C17 O1 -179.6(2)
C15 C16 C17 C18 -0.2(3)
O1 C17 C18 C19 179.4(2)
C16 C17 C18 C19 0.0(4)
C17 C18 C19 C20 0.2(4)
C16 C15 C20 C19 -0.1(3)
C14 C15 C20 C19 178.1(2)
C18 C19 C20 C15 -0.1(4)
