#------------------------------------------------------------------------------
#$Date: 2016-02-14 06:40:26 +0200 (Sun, 14 Feb 2016) $
#$Revision: 176432 $
#$URL: svn://www.crystallography.net/cod/cif/7/21/87/7218738.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_7218738
loop_
_publ_author_name
'Cui, Guang Hua'
'Van Hecke, Kristof'
'Yu, Baoyi'
'Wang, Xiaoxiao'
_publ_section_title
;
 Four cobalt(II) coordination polymers with diverse topologies derived
 from flexible bis(benzimidazole) and aromatic dicarboxylic
 acids：Syntheses, crystal structures and catalytic properties
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C4RA08138B
_journal_year                    2014
_chemical_formula_sum            'C33 H30 Co N4 O5'
_chemical_formula_weight         621.54
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.8990(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5449(11)
_cell_length_b                   9.9472(10)
_cell_length_c                   28.910(3)
_cell_measurement_reflns_used    2628
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.36
_cell_measurement_theta_min      3.62
_cell_volume                     3021.4(5)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL  (Bruker, 1999)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       'φ and ω scans'
_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  0.1011
_diffrn_reflns_av_sigmaI/netI    0.1048
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            27229
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.17
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.616
_exptl_absorpt_correction_T_max  0.8132
_exptl_absorpt_correction_T_min  0.7236
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1292
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.482
_refine_diff_density_min         -0.422
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.997
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     392
_refine_ls_number_reflns         6908
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.997
_refine_ls_R_factor_all          0.1226
_refine_ls_R_factor_gt           0.0533
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0463P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1055
_refine_ls_wR_factor_ref         0.1288
_reflns_number_gt                3736
_reflns_number_total             6908
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra08138b2.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 
;
_cod_original_cell_volume        3021.3(5)
_cod_original_sg_symbol_Hall     '-P 2ybc '
_cod_original_sg_symbol_H-M      'P 21/c '
_cod_database_code               7218738
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
Co1 Co 0.59471(4) 0.52700(5) 0.267100(14) 0.03018(14) Uani 1 1 d .
O1 O 0.5162(2) 0.6539(2) 0.21419(7) 0.0353(6) Uani 1 1 d .
O1W O 0.4227(2) 0.4165(2) 0.26285(8) 0.0382(6) Uani 1 1 d .
O3 O 0.3469(2) 0.9258(3) -0.16852(8) 0.0449(6) Uani 1 1 d .
O2 O 0.6171(2) 0.4749(2) 0.19260(7) 0.0408(6) Uani 1 1 d .
N2 N 0.9837(3) 0.6245(3) 0.26664(9) 0.0341(7) Uani 1 1 d .
N3 N 1.1562(2) 0.6972(3) 0.22464(9) 0.0322(7) Uani 1 1 d .
C2 C 0.5765(3) 0.5463(3) 0.09766(11) 0.0353(8) Uani 1 1 d .
H2 H 0.6144 0.4634 0.1044 0.042 Uiso 1 1 calc R
C18 C 0.9973(4) 0.8643(4) 0.36554(13) 0.0441(9) Uani 1 1 d .
C26 C 0.9906(3) 0.7448(4) 0.15706(12) 0.0429(9) Uani 1 1 d .
H26 H 0.9331 0.6779 0.1636 0.051 Uiso 1 1 calc R
N1 N 0.7728(3) 0.6445(3) 0.26790(9) 0.0358(7) Uani 1 1 d .
C17 C 1.0479(3) 0.7818(4) 0.33346(12) 0.0410(9) Uani 1 1 d .
H17 H 1.1354 0.7697 0.3335 0.049 Uiso 1 1 calc R
C34 C 1.1028(3) 0.5858(3) 0.24917(12) 0.0366(8) Uani 1 1 d .
H34A H 1.0889 0.5099 0.2283 0.044 Uiso 1 1 calc R
H34B H 1.1625 0.5584 0.2748 0.044 Uiso 1 1 calc R
C16 C 0.9643(3) 0.7178(3) 0.30119(11) 0.0326(8) Uani 1 1 d .
C9 C 0.3632(3) 0.8468(4) -0.07501(12) 0.0433(9) Uani 1 1 d .
H9 H 0.2849 0.8761 -0.0885 0.052 Uiso 1 1 calc R
C30 C 1.1878(3) 0.8638(3) 0.17652(11) 0.0318(8) Uani 1 1 d .
C11 C 0.5815(3) 0.8006(4) -0.08013(11) 0.0410(9) Uani 1 1 d .
H11 H 0.6525 0.7992 -0.0971 0.049 Uiso 1 1 calc R
C15 C 0.8662(3) 0.5860(4) 0.24861(11) 0.0367(8) Uani 1 1 d .
H15 H 0.8532 0.5237 0.2247 0.044 Uiso 1 1 calc R
C29 C 1.1647(3) 0.9480(3) 0.13864(11) 0.0373(9) Uani 1 1 d .
H29 H 1.2226 1.0148 0.1325 0.045 Uiso 1 1 calc R
C4 C 0.5025(3) 0.7127(4) 0.04076(11) 0.0360(8) Uani 1 1 d .
C5 C 0.4573(4) 0.7884(4) 0.07621(12) 0.0451(10) Uani 1 1 d .
H5 H 0.4153 0.8690 0.0692 0.054 Uiso 1 1 calc R
C3 C 0.5620(3) 0.5918(4) 0.05243(11) 0.0367(8) Uani 1 1 d .
H3 H 0.5930 0.5398 0.0292 0.044 Uiso 1 1 calc R
C6 C 0.4738(3) 0.7458(4) 0.12187(11) 0.0394(9) Uani 1 1 d .
H6 H 0.4441 0.7985 0.1452 0.047 Uiso 1 1 calc R
C20 C 0.7829(3) 0.8193(3) 0.33170(12) 0.0379(9) Uani 1 1 d .
H20 H 0.6955 0.8336 0.3303 0.046 Uiso 1 1 calc R
C13 C 0.4543(3) 0.8925(3) -0.15067(11) 0.0334(8) Uani 1 1 d .
C10 C 0.4663(3) 0.8450(3) -0.10098(11) 0.0323(8) Uani 1 1 d .
C25 C 1.1033(3) 0.7618(3) 0.18486(11) 0.0332(8) Uani 1 1 d .
C1 C 0.5343(3) 0.6246(3) 0.13307(11) 0.0303(8) Uani 1 1 d .
C28 C 1.0530(4) 0.9307(4) 0.10998(12) 0.0464(10) Uani 1 1 d .
C14 C 0.5562(3) 0.5801(4) 0.18231(11) 0.0333(8) Uani 1 1 d .
C7 C 0.4893(3) 0.7606(3) -0.00803(11) 0.0366(9) Uani 1 1 d .
C21 C 0.8331(3) 0.7306(3) 0.30116(11) 0.0335(8) Uani 1 1 d .
C8 C 0.3737(3) 0.8059(4) -0.02911(12) 0.0472(10) Uani 1 1 d .
H8 H 0.3026 0.8087 -0.0122 0.057 Uiso 1 1 calc R
C19 C 0.8633(4) 0.8866(4) 0.36427(13) 0.0432(9) Uani 1 1 d .
C23 C 0.8074(4) 0.9797(4) 0.39849(15) 0.0635(12) Uani 1 1 d .
H23A H 0.7165 0.9816 0.3925 0.095 Uiso 1 1 calc R
H23B H 0.8408 1.0687 0.3952 0.095 Uiso 1 1 calc R
H23C H 0.8295 0.9481 0.4295 0.095 Uiso 1 1 calc R
C27 C 0.9655(4) 0.8294(4) 0.11947(13) 0.0489(10) Uani 1 1 d .
C12 C 0.5927(3) 0.7584(4) -0.03460(12) 0.0420(9) Uani 1 1 d .
H12 H 0.6710 0.7280 -0.0214 0.050 Uiso 1 1 calc R
C22 C 1.0850(4) 0.9260(4) 0.40375(14) 0.0684(13) Uani 1 1 d .
H22A H 1.1718 0.9083 0.3980 0.103 Uiso 1 1 calc R
H22B H 1.0678 0.8876 0.4330 0.103 Uiso 1 1 calc R
H22C H 1.0712 1.0213 0.4045 0.103 Uiso 1 1 calc R
C32 C 0.8416(4) 0.8133(5) 0.08926(16) 0.0798(16) Uani 1 1 d .
H32A H 0.8596 0.7968 0.0578 0.120 Uiso 1 1 calc R
H32B H 0.7921 0.8940 0.0906 0.120 Uiso 1 1 calc R
H32C H 0.7946 0.7390 0.1003 0.120 Uiso 1 1 calc R
C31 C 1.0286(4) 1.0236(4) 0.06896(14) 0.0726(14) Uani 1 1 d .
H31A H 1.0952 1.0895 0.0694 0.109 Uiso 1 1 calc R
H31B H 0.9483 1.0680 0.0707 0.109 Uiso 1 1 calc R
H31C H 1.0268 0.9725 0.0407 0.109 Uiso 1 1 calc R
O4 O 0.5568(2) 0.8945(2) -0.17108(7) 0.0410(6) Uani 1 1 d .
C33 C 1.2657(3) 0.7637(3) 0.23840(11) 0.0323(8) Uani 1 1 d .
H33 H 1.3186 0.7401 0.2645 0.039 Uiso 1 1 calc R
N4 N 1.2890(2) 0.8637(3) 0.21137(9) 0.0302(6) Uani 1 1 d .
H1WA H 0.3772 0.4444 0.2824 0.045 Uiso 1 1 d R
H1WB H 0.4334 0.3377 0.2668 0.045 Uiso 1 1 d R
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'
Co Co 0.3494 0.9721 '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
O4 Co1 N4 101.04(10) 4_576 2_745
O4 Co1 O1 108.47(9) 4_576 .
N4 Co1 O1 150.06(9) 2_745 .
O4 Co1 O1W 91.06(9) 4_576 .
N4 Co1 O1W 95.24(9) 2_745 .
O1 Co1 O1W 89.28(9) . .
O4 Co1 N1 91.07(10) 4_576 .
N4 Co1 N1 86.09(10) 2_745 .
O1 Co1 N1 88.36(9) . .
O1W Co1 N1 177.22(9) . .
O4 Co1 O2 168.95(9) 4_576 .
N4 Co1 O2 89.95(9) 2_745 .
O1 Co1 O2 60.48(8) . .
O1W Co1 O2 89.10(9) . .
N1 Co1 O2 88.46(9) . .
O4 Co1 C14 139.08(11) 4_576 .
N4 Co1 C14 119.69(11) 2_745 .
O1 Co1 C14 30.61(9) . .
O1W Co1 C14 89.20(9) . .
N1 Co1 C14 88.02(10) . .
O2 Co1 C14 29.87(9) . .
C14 O1 Co1 92.66(19) . .
Co1 O1W H1WA 109.5 . .
Co1 O1W H1WB 113.0 . .
H1WA O1W H1WB 108.6 . .
C14 O2 Co1 86.62(19) . .
C15 N2 C16 106.2(3) . .
C15 N2 C34 125.7(3) . .
C16 N2 C34 127.8(3) . .
C33 N3 C25 106.7(3) . .
C33 N3 C34 125.6(3) . .
C25 N3 C34 127.6(3) . .
C3 C2 C1 119.9(3) . .
C3 C2 H2 120.1 . .
C1 C2 H2 120.1 . .
C17 C18 C19 120.9(3) . .
C17 C18 C22 119.1(3) . .
C19 C18 C22 119.9(3) . .
C27 C26 C25 118.6(3) . .
C27 C26 H26 120.7 . .
C25 C26 H26 120.7 . .
C15 N1 C21 104.5(3) . .
C15 N1 Co1 115.5(2) . .
C21 N1 Co1 131.8(2) . .
C18 C17 C16 117.8(3) . .
C18 C17 H17 121.1 . .
C16 C17 H17 121.1 . .
N2 C34 N3 110.6(3) . .
N2 C34 H34A 109.5 . .
N3 C34 H34A 109.5 . .
N2 C34 H34B 109.5 . .
N3 C34 H34B 109.5 . .
H34A C34 H34B 108.1 . .
C17 C16 C21 122.4(3) . .
C17 C16 N2 131.9(3) . .
C21 C16 N2 105.5(3) . .
C10 C9 C8 121.3(3) . .
C10 C9 H9 119.4 . .
C8 C9 H9 119.4 . .
C29 C30 C25 120.6(3) . .
C29 C30 N4 129.8(3) . .
C25 C30 N4 109.6(3) . .
C12 C11 C10 121.0(3) . .
C12 C11 H11 119.5 . .
C10 C11 H11 119.5 . .
N1 C15 N2 114.0(3) . .
N1 C15 H15 123.0 . .
N2 C15 H15 123.0 . .
C30 C29 C28 118.7(3) . .
C30 C29 H29 120.7 . .
C28 C29 H29 120.7 . .
C3 C4 C5 117.9(3) . .
C3 C4 C7 120.9(3) . .
C5 C4 C7 121.2(3) . .
C6 C5 C4 121.0(3) . .
C6 C5 H5 119.5 . .
C4 C5 H5 119.5 . .
C2 C3 C4 121.8(3) . .
C2 C3 H3 119.1 . .
C4 C3 H3 119.1 . .
C5 C6 C1 120.4(3) . .
C5 C6 H6 119.8 . .
C1 C6 H6 119.8 . .
C19 C20 C21 119.8(3) . .
C19 C20 H20 120.1 . .
C21 C20 H20 120.1 . .
O3 C13 O4 125.4(3) . .
O3 C13 C10 118.4(3) . .
O4 C13 C10 116.2(3) . .
C9 C10 C11 118.2(3) . .
C9 C10 C13 120.8(3) . .
C11 C10 C13 121.0(3) . .
C30 C25 C26 121.4(3) . .
C30 C25 N3 105.2(3) . .
C26 C25 N3 133.3(3) . .
C2 C1 C6 119.0(3) . .
C2 C1 C14 120.3(3) . .
C6 C1 C14 120.7(3) . .
C29 C28 C27 120.5(3) . .
C29 C28 C31 118.1(3) . .
C27 C28 C31 121.4(3) . .
O2 C14 O1 120.2(3) . .
O2 C14 C1 120.7(3) . .
O1 C14 C1 119.0(3) . .
O2 C14 Co1 63.52(17) . .
O1 C14 Co1 56.73(16) . .
C1 C14 Co1 174.8(3) . .
C12 C7 C8 117.6(3) . .
C12 C7 C4 120.5(3) . .
C8 C7 C4 121.9(3) . .
C20 C21 C16 119.5(3) . .
C20 C21 N1 130.7(3) . .
C16 C21 N1 109.8(3) . .
C9 C8 C7 120.7(3) . .
C9 C8 H8 119.6 . .
C7 C8 H8 119.6 . .
C20 C19 C18 119.3(3) . .
C20 C19 C23 119.4(3) . .
C18 C19 C23 121.3(3) . .
C19 C23 H23A 109.5 . .
C19 C23 H23B 109.5 . .
H23A C23 H23B 109.5 . .
C19 C23 H23C 109.5 . .
H23A C23 H23C 109.5 . .
H23B C23 H23C 109.5 . .
C26 C27 C28 120.3(3) . .
C26 C27 C32 119.1(4) . .
C28 C27 C32 120.6(4) . .
C11 C12 C7 121.2(3) . .
C11 C12 H12 119.4 . .
C7 C12 H12 119.4 . .
C18 C22 H22A 109.5 . .
C18 C22 H22B 109.5 . .
H22A C22 H22B 109.5 . .
C18 C22 H22C 109.5 . .
H22A C22 H22C 109.5 . .
H22B C22 H22C 109.5 . .
C27 C32 H32A 109.5 . .
C27 C32 H32B 109.5 . .
H32A C32 H32B 109.5 . .
C27 C32 H32C 109.5 . .
H32A C32 H32C 109.5 . .
H32B C32 H32C 109.5 . .
C28 C31 H31A 109.5 . .
C28 C31 H31B 109.5 . .
H31A C31 H31B 109.5 . .
C28 C31 H31C 109.5 . .
H31A C31 H31C 109.5 . .
H31B C31 H31C 109.5 . .
C13 O4 Co1 130.9(2) . 4_575
N4 C33 N3 113.3(3) . .
N4 C33 H33 123.4 . .
N3 C33 H33 123.4 . .
C33 N4 C30 105.1(3) . .
C33 N4 Co1 123.3(2) . 2_755
C30 N4 Co1 127.0(2) . 2_755
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
Co1 O4 2.021(2) 4_576
Co1 N4 2.097(3) 2_745
Co1 O1 2.098(2) .
Co1 O1W 2.116(2) .
Co1 N1 2.210(3) .
Co1 O2 2.247(2) .
Co1 C14 2.507(3) .
O1 C14 1.278(4) .
O1W H1WA 0.8203 .
O1W H1WB 0.7981 .
O3 C13 1.249(4) .
O2 C14 1.250(4) .
N2 C15 1.357(4) .
N2 C16 1.391(4) .
N2 C34 1.446(4) .
N3 C33 1.360(4) .
N3 C25 1.392(4) .
N3 C34 1.455(4) .
C2 C3 1.380(4) .
C2 C1 1.389(4) .
C2 H2 0.9300 .
C18 C17 1.379(5) .
C18 C19 1.428(5) .
C18 C22 1.509(5) .
C26 C27 1.381(5) .
C26 C25 1.387(4) .
C26 H26 0.9300 .
N1 C15 1.309(4) .
N1 C21 1.399(4) .
C17 C16 1.383(4) .
C17 H17 0.9300 .
C34 H34A 0.9700 .
C34 H34B 0.9700 .
C16 C21 1.390(4) .
C9 C10 1.372(4) .
C9 C8 1.383(4) .
C9 H9 0.9300 .
C30 C29 1.384(4) .
C30 C25 1.385(4) .
C30 N4 1.404(4) .
C11 C12 1.377(4) .
C11 C10 1.381(4) .
C11 H11 0.9300 .
C15 H15 0.9300 .
C29 C28 1.392(5) .
C29 H29 0.9300 .
C4 C3 1.385(4) .
C4 C5 1.388(5) .
C4 C7 1.484(4) .
C5 C6 1.383(4) .
C5 H5 0.9300 .
C3 H3 0.9300 .
C6 C1 1.389(4) .
C6 H6 0.9300 .
C20 C19 1.385(5) .
C20 C21 1.385(4) .
C20 H20 0.9300 .
C13 O4 1.274(4) .
C13 C10 1.507(4) .
C1 C14 1.490(4) .
C28 C27 1.409(5) .
C28 C31 1.508(5) .
C7 C12 1.386(5) .
C7 C8 1.390(5) .
C8 H8 0.9300 .
C19 C23 1.511(5) .
C23 H23A 0.9600 .
C23 H23B 0.9600 .
C23 H23C 0.9600 .
C27 C32 1.517(5) .
C12 H12 0.9300 .
C22 H22A 0.9600 .
C22 H22B 0.9600 .
C22 H22C 0.9600 .
C32 H32A 0.9600 .
C32 H32B 0.9600 .
C32 H32C 0.9600 .
C31 H31A 0.9600 .
C31 H31B 0.9600 .
C31 H31C 0.9600 .
O4 Co1 2.021(2) 4_575
C33 N4 1.302(4) .
C33 H33 0.9300 .
N4 Co1 2.097(3) 2_755
