#------------------------------------------------------------------------------
#$Date: 2018-09-26 06:29:44 +0300 (Wed, 26 Sep 2018) $
#$Revision: 211175 $
#$URL: file:///home/coder/svn-repositories/cod/cif/8/10/26/8102627.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_8102627
loop_
_publ_author_name
'Feng, Xun'
'Miao, Shao-Bin'
'Li, Rong-Fang'
'Shi, Xin-Ge'
'Wang, Li-Ya'
_publ_section_title
;
 Crystal structure of diaqua-bis(hydrogen
 2-propyl-1H-imidazole-4,5-dicarboxylato)calcium(II),
 Ca(H₂O)₂(C₈H₉N₂O₄)₂
;
_journal_coden_ASTM              ZKNSFT
_journal_issue                   1
_journal_name_full
'Zeitschrift für Kristallographie - New Crystal Structures'
_journal_page_first              119
_journal_paper_doi               10.1524/ncrs.2010.0051
_journal_volume                  225
_journal_year                    2010
_chemical_formula_sum            'C16 H22 K N4 O10'
_chemical_formula_weight         469.48
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 97.856(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.724(2)
_cell_length_b                   13.030(2)
_cell_length_c                   11.703(2)
_cell_measurement_reflns_used    2541
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.23
_cell_measurement_theta_min      2.99
_cell_volume                     1922.1(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0305
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7048
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.71
_exptl_absorpt_coefficient_mu    0.344
_exptl_absorpt_correction_T_max  0.9313
_exptl_absorpt_correction_T_min  0.9190
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.622
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             980
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.729
_refine_diff_density_min         -0.299
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     145
_refine_ls_number_reflns         1774
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0394
_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)+(0.0627P)²+1.5770P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0991
_refine_ls_wR_factor_ref         0.1068
_reflns_number_gt                1494
_reflns_number_total             1774
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1267-2864.cff
_cod_data_source_block           bb
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_cell_volume        1922.0(6)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               8102627
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, -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_Wyckoff_symbol
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
Ca1 Ca 0.5000 -0.07410(4) 0.2500 0.0242(2) Uani 1 4 e d S . .
O1 O 0.40564(14) 0.07501(12) 0.16825(15) 0.0413(4) Uani 1 8 f d . . .
O2 O 0.40545(12) 0.22546(12) 0.07844(14) 0.0371(4) Uani 1 8 f d . . .
O3 O 0.29964(12) 0.38568(12) 0.06455(14) 0.0362(4) Uani 1 8 f d . . .
H3 H 0.3341 0.3323 0.0688 0.054 Uiso 1 8 f calc R . .
O4 O 0.16128(12) 0.44977(11) 0.13680(14) 0.0318(4) Uani 1 8 f d . . .
O5 O 0.44501(13) -0.10607(13) 0.04109(14) 0.0378(4) Uani 1 8 f d . . .
H1W H 0.4235 -0.0522 0.0042 0.089(13) Uiso 1 8 f d R . .
H2W H 0.4881 -0.1361 0.0028 0.071(10) Uiso 1 8 f d R . .
N1 N 0.13431(13) 0.27422(13) 0.26003(14) 0.0260(4) Uani 1 8 f d . . .
N2 N 0.23590(14) 0.13611(13) 0.28072(15) 0.0283(4) Uani 1 8 f d . . .
H2 H 0.2600 0.0772 0.3048 0.034 Uiso 1 8 f calc R . .
C1 C 0.27709(16) 0.19656(16) 0.20263(18) 0.0265(5) Uani 1 8 f d . . .
C2 C 0.21352(15) 0.28231(16) 0.19083(17) 0.0253(4) Uani 1 8 f d . . .
C3 C 0.15053(16) 0.18442(16) 0.31423(18) 0.0269(5) Uani 1 8 f d . . .
C4 C 0.36939(17) 0.16188(17) 0.14730(18) 0.0300(5) Uani 1 8 f d . . .
C5 C 0.22365(16) 0.37771(16) 0.12641(18) 0.0261(5) Uani 1 8 f d . . .
C6 C 0.09075(17) 0.13935(17) 0.40235(19) 0.0312(5) Uani 1 8 f d . . .
H6A H 0.0722 0.0690 0.3810 0.037 Uiso 1 8 f calc R . .
H6B H 0.0253 0.1773 0.4029 0.037 Uiso 1 8 f calc R . .
C7 C 0.1529(2) 0.14051(19) 0.5237(2) 0.0392(6) Uani 1 8 f d . . .
H7A H 0.2234 0.1131 0.5209 0.047 Uiso 1 8 f calc R . .
H7B H 0.1605 0.2108 0.5507 0.047 Uiso 1 8 f calc R . .
C8 C 0.0988(2) 0.0780(2) 0.6083(2) 0.0437(6) Uani 1 8 f d . . .
H8A H 0.0290 0.1049 0.6115 0.066 Uiso 1 8 f calc R . .
H8B H 0.1397 0.0818 0.6835 0.066 Uiso 1 8 f calc R . .
H8C H 0.0936 0.0077 0.5834 0.066 Uiso 1 8 f calc 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'
K K 0.2009 0.2494 '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
_geom_angle_publ_flag
O1 K1 O1 72.72(9) 2_655 . ?
O1 K1 O5 125.71(6) 2_655 . ?
O1 K1 O5 71.73(6) . . ?
O1 K1 O5 71.73(6) 2_655 2_655 ?
O1 K1 O5 125.71(6) . 2_655 ?
O5 K1 O5 160.69(8) . 2_655 ?
O1 K1 N1 156.47(5) 2_655 4_545 ?
O1 K1 N1 107.75(6) . 4_545 ?
O5 K1 N1 74.55(5) . 4_545 ?
O5 K1 N1 90.68(5) 2_655 4_545 ?
O1 K1 N1 107.75(6) 2_655 3_545 ?
O1 K1 N1 156.47(5) . 3_545 ?
O5 K1 N1 90.68(5) . 3_545 ?
O5 K1 N1 74.55(5) 2_655 3_545 ?
N1 K1 N1 81.31(7) 4_545 3_545 ?
O1 K1 O4 73.87(5) 2_655 3_545 ?
O1 K1 O4 94.93(5) . 3_545 ?
O5 K1 O4 69.85(5) . 3_545 ?
O5 K1 O4 112.61(5) 2_655 3_545 ?
N1 K1 O4 128.63(5) 4_545 3_545 ?
N1 K1 O4 63.67(5) 3_545 3_545 ?
O1 K1 O4 94.93(5) 2_655 4_545 ?
O1 K1 O4 73.87(5) . 4_545 ?
O5 K1 O4 112.61(5) . 4_545 ?
O5 K1 O4 69.85(5) 2_655 4_545 ?
N1 K1 O4 63.67(5) 4_545 4_545 ?
N1 K1 O4 128.63(5) 3_545 4_545 ?
O4 K1 O4 166.32(7) 3_545 4_545 ?
O1 K1 C5 85.29(5) 2_655 3_545 ?
O1 K1 C5 112.20(5) . 3_545 ?
O5 K1 C5 72.06(5) . 3_545 ?
O5 K1 C5 104.27(5) 2_655 3_545 ?
N1 K1 C5 114.84(5) 4_545 3_545 ?
N1 K1 C5 45.68(5) 3_545 3_545 ?
O4 K1 C5 18.18(5) 3_545 3_545 ?
O4 K1 C5 173.62(5) 4_545 3_545 ?
O1 K1 C5 112.20(5) 2_655 4_545 ?
O1 K1 C5 85.29(5) . 4_545 ?
O5 K1 C5 104.27(5) . 4_545 ?
O5 K1 C5 72.06(5) 2_655 4_545 ?
N1 K1 C5 45.68(5) 4_545 4_545 ?
N1 K1 C5 114.84(5) 3_545 4_545 ?
O4 K1 C5 173.62(5) 3_545 4_545 ?
O4 K1 C5 18.18(5) 4_545 4_545 ?
C5 K1 C5 158.85(7) 3_545 4_545 ?
O1 K1 C2 98.83(5) 2_655 3_545 ?
O1 K1 C2 136.14(5) . 3_545 ?
O5 K1 C2 80.50(5) . 3_545 ?
O5 K1 C2 89.02(5) 2_655 3_545 ?
N1 K1 C2 96.28(5) 4_545 3_545 ?
N1 K1 C2 21.04(5) 3_545 3_545 ?
O4 K1 C2 42.80(4) 3_545 3_545 ?
O4 K1 C2 149.67(5) 4_545 3_545 ?
C5 K1 C2 24.69(5) 3_545 3_545 ?
C5 K1 C2 135.17(5) 4_545 3_545 ?
O1 K1 C2 136.14(5) 2_655 4_545 ?
O1 K1 C2 98.83(5) . 4_545 ?
O5 K1 C2 89.02(5) . 4_545 ?
O5 K1 C2 80.50(5) 2_655 4_545 ?
N1 K1 C2 21.04(5) 4_545 4_545 ?
N1 K1 C2 96.28(5) 3_545 4_545 ?
O4 K1 C2 149.67(5) 3_545 4_545 ?
O4 K1 C2 42.80(4) 4_545 4_545 ?
C5 K1 C2 135.17(5) 3_545 4_545 ?
C5 K1 C2 24.69(5) 4_545 4_545 ?
C2 K1 C2 114.22(7) 3_545 4_545 ?
O1 K1 H1W 113.1 2_655 . ?
O1 K1 H1W 56.6 . . ?
O5 K1 H1W 15.5 . . ?
O5 K1 H1W 175.0 2_655 . ?
N1 K1 H1W 84.3 4_545 . ?
N1 K1 H1W 104.3 3_545 . ?
O4 K1 H1W 70.6 3_545 . ?
O4 K1 H1W 108.0 4_545 . ?
C5 K1 H1W 77.7 3_545 . ?
C5 K1 H1W 104.5 4_545 . ?
C2 K1 H1W 91.2 3_545 . ?
C2 K1 H1W 94.9 4_545 . ?
O1 K1 H2W 124.0 2_655 . ?
O1 K1 H2W 82.9 . . ?
O5 K1 H2W 14.4 . . ?
O5 K1 H2W 151.4 2_655 . ?
N1 K1 H2W 78.8 4_545 . ?
N1 K1 H2W 77.6 3_545 . ?
O4 K1 H2W 58.6 3_545 . ?
O4 K1 H2W 125.8 4_545 . ?
C5 K1 H2W 58.4 3_545 . ?
C5 K1 H2W 115.1 4_545 . ?
C2 K1 H2W 66.1 3_545 . ?
C2 K1 H2W 96.4 4_545 . ?
H1W K1 H2W 26.8 . . ?
C4 O1 K1 165.80(16) . . ?
C5 O3 H3 109.5 . . ?
C5 O4 K1 121.10(13) . 3_455 ?
K1 O5 H1W 112.9 . . ?
K1 O5 H2W 118.8 . . ?
H1W O5 H2W 107.4 . . ?
C3 N1 C2 105.58(16) . . ?
C3 N1 K1 138.19(13) . 3_455 ?
C2 N1 K1 116.23(12) . 3_455 ?
C3 N2 C1 108.71(17) . . ?
C3 N2 H2 125.6 . . ?
C1 N2 H2 125.6 . . ?
N2 C1 C2 105.11(17) . . ?
N2 C1 C4 121.05(18) . . ?
C2 C1 C4 133.79(19) . . ?
C1 C2 N1 110.22(18) . . ?
C1 C2 C5 130.20(18) . . ?
N1 C2 C5 119.37(17) . . ?
C1 C2 K1 152.92(14) . 3_455 ?
N1 C2 K1 42.73(9) . 3_455 ?
C5 C2 K1 76.84(11) . 3_455 ?
N1 C3 N2 110.38(18) . . ?
N1 C3 C6 128.08(18) . . ?
N2 C3 C6 121.51(18) . . ?
O1 C4 O2 124.1(2) . . ?
O1 C4 C1 119.20(19) . . ?
O2 C4 C1 116.73(18) . . ?
O4 C5 O3 122.12(19) . . ?
O4 C5 C2 118.89(18) . . ?
O3 C5 C2 118.92(18) . . ?
O4 C5 K1 40.72(10) . 3_455 ?
O3 C5 K1 162.48(14) . 3_455 ?
C2 C5 K1 78.47(11) . 3_455 ?
C3 C6 C7 113.17(18) . . ?
C3 C6 H6A 108.9 . . ?
C7 C6 H6A 108.9 . . ?
C3 C6 H6B 108.9 . . ?
C7 C6 H6B 108.9 . . ?
H6A C6 H6B 107.8 . . ?
C8 C7 C6 112.3(2) . . ?
C8 C7 H7A 109.1 . . ?
C6 C7 H7A 109.1 . . ?
C8 C7 H7B 109.1 . . ?
C6 C7 H7B 109.1 . . ?
H7A C7 H7B 107.9 . . ?
C7 C8 H8A 109.5 . . ?
C7 C8 H8B 109.5 . . ?
H8A C8 H8B 109.5 . . ?
C7 C8 H8C 109.5 . . ?
H8A C8 H8C 109.5 . . ?
H8B C8 H8C 109.5 . . ?
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
K1 O1 2.4121(16) 2_655 ?
K1 O1 2.4121(16) . ?
K1 O5 2.4847(16) . ?
K1 O5 2.4847(16) 2_655 ?
K1 N1 2.6051(17) 4_545 ?
K1 N1 2.6051(17) 3_545 ?
K1 O4 2.6076(15) 3_545 ?
K1 O4 2.6076(15) 4_545 ?
K1 C5 3.423(2) 3_545 ?
K1 C5 3.423(2) 4_545 ?
K1 C2 3.444(2) 3_545 ?
K1 C2 3.444(2) 4_545 ?
K1 H1W 2.9226 . ?
K1 H2W 2.9879 . ?
O1 C4 1.235(3) . ?
O2 C4 1.283(3) . ?
O3 C5 1.288(2) . ?
O3 H3 0.8200 . ?
O4 C5 1.247(2) . ?
O4 K1 2.6076(15) 3_455 ?
O5 H1W 0.8500 . ?
O5 H2W 0.8500 . ?
N1 C3 1.332(3) . ?
N1 C2 1.379(2) . ?
N1 K1 2.6051(17) 3_455 ?
N2 C3 1.359(3) . ?
N2 C1 1.363(3) . ?
N2 H2 0.8600 . ?
C1 C2 1.377(3) . ?
C1 C4 1.486(3) . ?
C2 C5 1.469(3) . ?
C2 K1 3.444(2) 3_455 ?
C3 C6 1.486(3) . ?
C5 K1 3.423(2) 3_455 ?
C6 C7 1.528(3) . ?
C6 H6A 0.9700 . ?
C6 H6B 0.9700 . ?
C7 C8 1.514(3) . ?
C7 H7A 0.9700 . ?
C7 H7B 0.9700 . ?
C8 H8A 0.9600 . ?
C8 H8B 0.9600 . ?
C8 H8C 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
O3 H3 O2 0.82 1.66 2.478(2) 179.2 .
O5 H1W O4 0.85 2.28 3.089(2) 160.2 7
O5 H2W O2 0.85 2.11 2.953(2) 173.1 5_655
N2 H2 O4 0.86 2.01 2.863(2) 171.0 4_545
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
O1 K1 O1 C4 -19.8(6) 2_655 . . . ?
O5 K1 O1 C4 -158.1(6) . . . . ?
O5 K1 O1 C4 31.3(6) 2_655 . . . ?
N1 K1 O1 C4 135.5(6) 4_545 . . . ?
N1 K1 O1 C4 -114.7(6) 3_545 . . . ?
O4 K1 O1 C4 -91.2(6) 3_545 . . . ?
O4 K1 O1 C4 80.8(6) 4_545 . . . ?
C5 K1 O1 C4 -97.1(6) 3_545 . . . ?
C5 K1 O1 C4 95.2(6) 4_545 . . . ?
C2 K1 O1 C4 -104.6(6) 3_545 . . . ?
C2 K1 O1 C4 115.9(6) 4_545 . . . ?
C3 N2 C1 C2 0.0(2) . . . . ?
C3 N2 C1 C4 -177.89(18) . . . . ?
N2 C1 C2 N1 -0.4(2) . . . . ?
C4 C1 C2 N1 177.1(2) . . . . ?
N2 C1 C2 C5 174.3(2) . . . . ?
C4 C1 C2 C5 -8.2(4) . . . . ?
N2 C1 C2 K1 -2.3(4) . . . 3_455 ?
C4 C1 C2 K1 175.18(19) . . . 3_455 ?
C3 N1 C2 C1 0.6(2) . . . . ?
K1 N1 C2 C1 -178.68(13) 3_455 . . . ?
C3 N1 C2 C5 -174.71(18) . . . . ?
K1 N1 C2 C5 6.0(2) 3_455 . . . ?
C3 N1 C2 K1 179.3(2) . . . 3_455 ?
C2 N1 C3 N2 -0.6(2) . . . . ?
K1 N1 C3 N2 178.45(14) 3_455 . . . ?
C2 N1 C3 C6 177.4(2) . . . . ?
K1 N1 C3 C6 -3.6(3) 3_455 . . . ?
C1 N2 C3 N1 0.4(2) . . . . ?
C1 N2 C3 C6 -177.79(18) . . . . ?
K1 O1 C4 O2 96.9(6) . . . . ?
K1 O1 C4 C1 -84.2(7) . . . . ?
N2 C1 C4 O1 3.8(3) . . . . ?
C2 C1 C4 O1 -173.5(2) . . . . ?
N2 C1 C4 O2 -177.29(19) . . . . ?
C2 C1 C4 O2 5.5(4) . . . . ?
K1 O4 C5 O3 175.33(15) 3_455 . . . ?
K1 O4 C5 C2 -7.5(3) 3_455 . . . ?
C1 C2 C5 O4 -173.4(2) . . . . ?
N1 C2 C5 O4 0.8(3) . . . . ?
K1 C2 C5 O4 5.02(17) 3_455 . . . ?
C1 C2 C5 O3 3.8(3) . . . . ?
N1 C2 C5 O3 178.04(18) . . . . ?
K1 C2 C5 O3 -177.77(19) 3_455 . . . ?
C1 C2 C5 K1 -178.4(2) . . . 3_455 ?
N1 C2 C5 K1 -4.19(16) . . . 3_455 ?
N1 C3 C6 C7 -107.6(3) . . . . ?
N2 C3 C6 C7 70.2(3) . . . . ?
C3 C6 C7 C8 -170.1(2) . . . . ?
