#------------------------------------------------------------------------------
#$Date: 2011-09-10 06:16:28 +0300 (Sat, 10 Sep 2011) $
#$Revision: 25271 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/2006469.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2006469
loop_
_publ_author_name
'Thabet, H.'
'Jouini, A.'
_publ_section_title
;
 Sodium 1,6-Hexanediammonium Cyclotriphosphate Dihydrate
;
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1182
_journal_page_last               1184
_journal_volume                  53
_journal_year                    1997
_chemical_formula_iupac          'Na + , C6 H18 N2 2+ , P3 O9 3- , 2H2 O'
_chemical_formula_moiety         'C6 H22 N2 Na O11 P3'
_chemical_formula_structural     'Na NH3(CH2)6NH3 P3 O9,2H2O'
_chemical_formula_sum            'C6 H22 N2 Na O11 P3'
_chemical_formula_weight         414.16
_chemical_name_systematic
;
Sodium 1,6-diammoniumhexane cyclotriphosphate dihydrate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_audit_creation_method           SHELXL
_cell_angle_alpha                94.170(10)
_cell_angle_beta                 68.690(10)
_cell_angle_gamma                102.140(10)
_cell_formula_units_Z            2
_cell_length_a                   8.6190(10)
_cell_length_b                   13.9830(10)
_cell_length_c                   7.3440(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      14
_cell_measurement_theta_min      13
_cell_volume                     806.13(17)
_computing_cell_refinement       'CAD4 Software'
_computing_data_collection       'CAD4 Software (Enraf-Nonius, 1989)'
_computing_data_reduction        'MolEN (Fair, 1990)'
_computing_publication_material  SHELXL93
_computing_structure_refinement  'SHELXL93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'CAD4 diffractometer'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0097
_diffrn_reflns_av_sigmaI/netI    0.0202
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            3076
_diffrn_reflns_theta_max         25
_diffrn_reflns_theta_min         2.59
_diffrn_standards_decay_%        0.78%
_diffrn_standards_interval_time  120
_diffrn_standards_number         1
_exptl_absorpt_coefficient_mu    0.453
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.706
_exptl_crystal_density_meas      1.697
_exptl_crystal_density_method    'pycnometry (toluene as pycnometric liquid)'
_exptl_crystal_description       transparent
_exptl_crystal_F_000             432
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.260
_refine_diff_density_min         -0.290
_refine_ls_extinction_coef       0.0169(19)
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_all   1.050
_refine_ls_goodness_of_fit_obs   1.066
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     297
_refine_ls_number_reflns         2832
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_restrained_S_obs      1.066
_refine_ls_R_factor_all          0.0357
_refine_ls_R_factor_obs          0.0259
_refine_ls_shift/esd_max         -0.001
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_scheme
'calc w = 1/[\s^2^(Fo^2^)+(0.0431P)^2^+0.3320P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_wR_factor_all         0.0754
_refine_ls_wR_factor_obs         0.0696
_reflns_number_observed          2396
_reflns_number_total             2832
_reflns_observed_criterion       >2sigma(I)
_[local]_cod_data_source_file    du1172.cif
_[local]_cod_data_source_block   CYCLOTRI
_cod_original_cell_volume        806.19(13)
_cod_database_code               2006469
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, -z'
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
P1 0.0187(3) 0.0229(3) 0.0210(3) 0.0064(2) -0.0078(2) -0.0038(2)
P2 0.0221(3) 0.0180(3) 0.0229(3) -0.0034(2) -0.0078(2) 0.0016(2)
P3 0.0153(2) 0.0174(2) 0.0203(3) 0.0023(2) -0.0060(2) 0.0024(2)
Na 0.0252(4) 0.0263(4) 0.0291(4) 0.0025(3) -0.0121(3) 0.0049(3)
OE11 0.0296(8) 0.0262(7) 0.0411(8) 0.0112(6) -0.0177(7) -0.0021(6)
OE12 0.0319(8) 0.0477(9) 0.0231(8) 0.0095(7) -0.0092(6) -0.0089(7)
OL12 0.0206(7) 0.0226(7) 0.0222(7) 0.0005(5) -0.0047(5) 0.0018(5)
OL13 0.0181(7) 0.0209(7) 0.0238(7) 0.0037(5) -0.0087(5) -0.0030(5)
OE21 0.0305(8) 0.0342(8) 0.0344(8) -0.0032(6) -0.0196(7) 0.0034(6)
OE22 0.0420(9) 0.0185(7) 0.0398(9) -0.0071(6) -0.0090(7) 0.0022(6)
OL23 0.0215(7) 0.0176(6) 0.0243(7) 0.0023(5) -0.0047(6) -0.0009(5)
OE31 0.0229(7) 0.0256(7) 0.0263(7) 0.0017(6) -0.0098(6) 0.0076(6)
OE32 0.0180(7) 0.0295(7) 0.0291(7) 0.0065(6) -0.0075(6) 0.0030(6)
OW1 0.0422(10) 0.0262(9) 0.0319(10) -0.0071(8) -0.0001(8) -0.0028(7)
OW2 0.0265(9) 0.0478(10) 0.0311(9) 0.0080(8) -0.0083(7) 0.0037(8)
N1 0.0331(11) 0.0231(9) 0.0354(11) 0.0041(8) -0.0185(9) -0.0005(8)
N2 0.0254(10) 0.0243(9) 0.0361(11) 0.0051(8) -0.0148(8) -0.0054(8)
C1 0.0346(12) 0.0241(10) 0.0341(12) 0.0029(9) -0.0176(10) 0.0032(9)
C2 0.0311(12) 0.0267(11) 0.0341(12) 0.0081(9) -0.0123(10) 0.0011(9)
C3 0.0303(12) 0.0291(11) 0.0287(11) 0.0049(9) -0.0117(9) 0.0027(9)
C4 0.0291(12) 0.0315(12) 0.0362(12) 0.0044(9) -0.0124(10) 0.0039(9)
C5 0.0268(11) 0.0306(11) 0.0313(12) 0.0041(9) -0.0104(9) 0.0012(9)
C6 0.0313(12) 0.0294(11) 0.0320(12) 0.0050(9) -0.0141(9) 0.0002(9)
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_thermal_displace_type
_atom_site_calc_flag
_atom_site_occupancy
_atom_site_type_symbol
P1 0.78599(6) 0.38092(4) 0.02905(7) 0.02052(15) Uani d 1 P
P2 0.75518(6) 0.21307(3) -0.21320(7) 0.02214(15) Uani d 1 P
P3 1.07298(6) 0.34943(3) -0.30658(7) 0.01779(14) Uani d 1 P
Na 0.79030(10) 0.42711(5) -0.45614(11) 0.0263(2) Uani d 1 Na
OE11 0.7196(2) 0.44029(10) -0.0755(2) 0.0300(3) Uani d 1 O
OE12 0.7554(2) 0.39670(12) 0.2375(2) 0.0346(4) Uani d 1 O
OL12 0.7148(2) 0.26663(9) -0.0041(2) 0.0231(3) Uani d 1 O
OL13 0.9871(2) 0.38691(9) -0.0876(2) 0.0208(3) Uani d 1 O
OE21 0.6861(2) 0.25810(11) -0.3367(2) 0.0320(4) Uani d 1 O
OE22 0.7058(2) 0.10699(10) -0.1747(2) 0.0369(4) Uani d 1 O
OL23 0.9599(2) 0.24126(9) -0.2981(2) 0.0224(3) Uani d 1 O
OE31 1.0557(2) 0.40997(10) -0.4520(2) 0.0247(3) Uani d 1 O
OE32 1.2459(2) 0.33605(10) -0.3284(2) 0.0253(3) Uani d 1 O
OW1 0.4558(3) 0.08052(13) -0.7975(3) 0.0395(4) Uani d 1 O
OW2 0.5651(2) 0.52488(13) -0.3369(3) 0.0354(4) Uani d 1 O
N1 0.3466(3) 0.36833(13) 0.0053(3) 0.0290(4) Uani d 1 N
N2 0.4118(2) 0.17356(13) -0.4461(3) 0.0278(4) Uani d 1 N
C1 0.2851(3) 0.2749(2) 0.1196(3) 0.0297(5) Uani d 1 C
C2 1.1058(3) 0.2262(2) 0.1372(3) 0.0300(5) Uani d 1 C
C3 1.0519(3) 0.1265(2) -0.7636(3) 0.0290(5) Uani d 1 C
C4 0.8805(3) 0.0713(2) -0.7644(4) 0.0321(5) Uani d 1 C
C5 0.8255(3) -0.0281(2) -0.6616(3) 0.0297(5) Uani d 1 C
C6 0.3389(3) 0.0840(2) -0.3214(3) 0.0302(5) Uani d 1 C
H1W1 0.408(4) 0.031(2) -0.800(4) 0.052(9) Uiso d 1 H
H2W1 0.530(4) 0.089(2) -0.890(5) 0.049(9) Uiso d 1 H
H1W2 0.467(5) 0.529(2) -0.300(5) 0.063(10) Uiso d 1 H
H2W2 0.605(6) 0.561(3) -0.425(7) 0.101(15) Uiso d 1 H
H1N1 0.290(4) 0.407(2) 0.075(4) 0.045(8) Uiso d 1 H
H2N1 0.325(3) 0.3615(17) -0.105(4) 0.033(6) Uiso d 1 H
H3N1 0.466(4) 0.389(2) -0.023(5) 0.066(9) Uiso d 1 H
H1N2 0.506(4) 0.1990(19) -0.427(4) 0.041(7) Uiso d 1 H
H2N2 0.343(3) 0.2163(19) -0.413(4) 0.038(7) Uiso d 1 H
H3N2 0.434(3) 0.1561(19) -0.568(4) 0.043(7) Uiso d 1 H
H1C1 0.294(3) 0.2913(19) 0.243(4) 0.044(7) Uiso d 1 H
H2C1 0.358(3) 0.2327(17) 0.048(4) 0.031(6) Uiso d 1 H
H1C2 1.097(3) 0.2154(17) 0.008(4) 0.032(6) Uiso d 1 H
H2C2 1.035(3) 0.2644(19) 0.204(4) 0.042(7) Uiso d 1 H
H1C3 1.136(3) 0.0863(17) -0.830(4) 0.033(6) Uiso d 1 H
H2C3 1.052(3) 0.1344(17) -0.629(4) 0.038(6) Uiso d 1 H
H1C4 0.885(3) 0.0632(19) -0.897(4) 0.048(7) Uiso d 1 H
H2C4 0.796(3) 0.1107(18) -0.700(4) 0.040(7) Uiso d 1 H
H1C5 0.911(3) -0.0655(17) -0.720(3) 0.031(6) Uiso d 1 H
H2C5 0.812(3) -0.0156(17) -0.529(4) 0.031(6) Uiso d 1 H
H1C6 0.426(3) 0.0397(18) -0.364(4) 0.038(6) Uiso d 1 H
H2C6 0.321(4) 0.1043(19) -0.186(4) 0.051(8) Uiso d 1 H
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'
P P 0.1023 0.0942 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Na Na 0.0362 0.0249 '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_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle
_geom_angle_publ_flag
OE12 P1 OE11 . . 120.11(9) y
OE12 P1 OL13 . . 109.11(8) y
OE11 P1 OL13 . . 109.55(8) y
OE12 P1 OL12 . . 108.66(8) y
OE11 P1 OL12 . . 107.51(8) y
OL13 P1 OL12 . . 100.02(7) y
OE22 P2 OE21 . . 120.13(9) y
OE22 P2 OL12 . . 106.97(8) y
OE21 P2 OL12 . . 109.86(8) y
OE22 P2 OL23 . . 107.75(8) y
OE21 P2 OL23 . . 109.85(8) y
OL12 P2 OL23 . . 100.46(7) y
OE31 P3 OE32 . . 118.65(8) y
OE31 P3 OL13 . . 111.59(7) y
OE32 P3 OL13 . . 107.25(7) y
OE31 P3 OL23 . . 110.23(8) y
OE32 P3 OL23 . . 106.23(8) y
OL13 P3 OL23 . . 101.38(7) y
OE31 P3 Na . . 35.59(5) n
OE32 P3 Na . . 153.91(6) n
OL13 P3 Na . . 91.78(5) n
OL23 P3 Na . . 86.65(5) n
OE31 P3 Na . 2_764 34.47(5) n
OE32 P3 Na . 2_764 95.37(6) n
OL13 P3 Na . 2_764 98.51(5) n
OL23 P3 Na . 2_764 144.53(5) n
Na P3 Na . 2_764 63.57(2) n
OE31 Na OE12 . 1_554 115.11(6) y
OE31 Na OE31 . 2_764 81.04(5) y
OE12 Na OE31 1_554 2_764 92.49(6) y
OE31 Na OE21 . . 86.33(5) y
OE12 Na OE21 1_554 . 96.42(6) y
OE31 Na OE21 2_764 . 166.78(6) y
OE31 Na OW2 . . 144.96(6) y
OE12 Na OW2 1_554 . 93.05(6) y
OE31 Na OW2 2_764 . 77.13(6) y
OE21 Na OW2 . . 111.99(6) y
OE31 Na OE11 . . 81.75(5) y
OE12 Na OE11 1_554 . 161.02(6) y
OE31 Na OE11 2_764 . 99.05(5) y
OE21 Na OE11 . . 75.12(5) y
OW2 Na OE11 . . 75.08(5) y
OE31 Na P3 . . 21.35(3) n
OE12 Na P3 1_554 . 126.95(5) n
OE31 Na P3 2_764 . 98.13(4) n
OE21 Na P3 . . 68.70(4) n
OW2 Na P3 . . 139.99(5) n
OE11 Na P3 . . 66.39(4) n
OE31 Na P3 . 2_764 97.20(4) n
OE12 Na P3 1_554 2_764 74.25(4) n
OE31 Na P3 2_764 2_764 20.47(3) n
OE21 Na P3 . 2_764 170.67(5) n
OW2 Na P3 . 2_764 69.63(5) n
OE11 Na P3 . 2_764 113.87(4) n
P3 Na P3 . 2_764 116.43(2) n
OE31 Na Na . 2_764 40.82(4) n
OE12 Na Na 1_554 2_764 107.83(5) n
OE31 Na Na 2_764 2_764 40.23(4) n
OE21 Na Na . 2_764 127.04(5) n
OW2 Na Na . 2_764 112.82(6) n
OE11 Na Na . 2_764 90.59(4) n
P3 Na Na . 2_764 58.98(2) n
P3 Na Na 2_764 2_764 57.46(2) n
OE31 Na H2W2 . . 141.5(9) n
OE12 Na H2W2 1_554 . 83.3(10) n
OE31 Na H2W2 2_764 . 63.8(10) n
OE21 Na H2W2 . . 126.9(10) n
OW2 Na H2W2 . . 17.0(10) n
OE11 Na H2W2 . . 88.3(10) n
P3 Na H2W2 . . 146.9(9) n
P3 Na H2W2 2_764 . 53.5(10) n
Na Na H2W2 2_764 . 102.7(9) n
P1 OE11 Na . . 122.08(8) n
P1 OE12 Na . 1_556 163.80(10) n
P2 OL12 P1 . . 124.97(8) y
P3 OL13 P1 . . 126.01(8) y
P2 OE21 Na . . 123.64(8) n
P3 OL23 P2 . . 125.91(8) y
P3 OE31 Na . . 123.06(8) n
P3 OE31 Na . 2_764 125.06(8) n
Na OE31 Na . 2_764 98.96(5) n
P1 P2 P3 . . 60.12(2) y
P1 P3 P2 . . 59.88(2) y
P2 P1 P3 . . 60.00(2) y
H1W1 OW1 H2W1 . . 108(3) y
Na OW2 H1W2 . . 151.(2) n
Na OW2 H2W2 . . 95.(3) n
H1W2 OW2 H2W2 . . 102(4) y
C1 N1 H1N1 . . 105.0(19) n
C1 N1 H2N1 . . 111.7(16) n
H1N1 N1 H2N1 . . 107.(3) n
C1 N1 H3N1 . . 108.7(19) n
H1N1 N1 H3N1 . . 114.(3) n
H2N1 N1 H3N1 . . 110.(2) n
C6 N2 H1N2 . . 105.1(17) n
C6 N2 H2N2 . . 112.2(16) n
H1N2 N2 H2N2 . . 110.(2) n
C6 N2 H3N2 . . 108.6(17) n
H1N2 N2 H3N2 . . 110.(2) n
H2N2 N2 H3N2 . . 111.(2) n
N1 C1 C2 . 1_455 112.7(2) y
N1 C1 H1C1 . . 105.9(16) n
C2 C1 H1C1 1_455 . 111.8(16) n
N1 C1 H2C1 . . 105.8(14) n
C2 C1 H2C1 1_455 . 107.6(14) n
H1C1 C1 H2C1 . . 113.(2) n
C1 C2 C3 1_655 1_556 111.9(2) y
C1 C2 H1C2 1_655 . 110.6(14) n
C3 C2 H1C2 1_556 . 106.8(14) n
C1 C2 H2C2 1_655 . 109.4(17) n
C3 C2 H2C2 1_556 . 109.8(17) n
H1C2 C2 H2C2 . . 108.(2) n
C4 C3 C2 . 1_554 112.9(2) y
C4 C3 H1C3 . . 108.0(14) n
C2 C3 H1C3 1_554 . 109.8(14) n
C4 C3 H2C3 . . 110.9(14) n
C2 C3 H2C3 1_554 . 109.7(14) n
H1C3 C3 H2C3 . . 105.(2) n
C3 C4 C5 . . 112.7(2) y
C3 C4 H1C4 . . 109.2(16) n
C5 C4 H1C4 . . 110.3(16) n
C3 C4 H2C4 . . 108.7(15) n
C5 C4 H2C4 . . 109.1(15) n
H1C4 C4 H2C4 . . 107.(2) n
C6 C5 C4 2_654 . 111.2(2) y
C6 C5 H1C5 2_654 . 108.9(14) n
C4 C5 H1C5 . . 109.3(14) n
C6 C5 H2C5 2_654 . 110.4(14) n
C4 C5 H2C5 . . 106.9(14) n
H1C5 C5 H2C5 . . 110.(2) n
N2 C6 C5 . 2_654 112.9(2) y
N2 C6 H1C6 . . 108.1(14) n
C5 C6 H1C6 2_654 . 108.7(14) n
N2 C6 H2C6 . . 107.6(16) n
C5 C6 H2C6 2_654 . 110.5(16) n
H1C6 C6 H2C6 . . 109.(2) n
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
P1 OE12 . 1.464(2) y
P1 OE11 . 1.490(2) y
P1 OL13 . 1.6170(10) y
P1 OL12 . 1.6210(10) y
P2 OE22 . 1.4730(10) y
P2 OE21 . 1.486(2) y
P2 OL12 . 1.6110(10) y
P2 OL23 . 1.6130(10) y
P3 OE31 . 1.4760(10) y
P3 OE32 . 1.4900(10) y
P3 OL13 . 1.6080(10) y
P3 OL23 . 1.6100(10) y
P1 P2 . 2.8670(10) y
P1 P3 . 2.8730(10) y
P2 P3 . 2.8700(10) y
P3 Na . 3.3990(10) y
P3 Na 2_764 3.4554(9) y
Na OE31 . 2.361(2) y
Na OE12 1_554 2.373(2) y
Na OE31 2_764 2.389(2) y
Na OE21 . 2.449(2) y
Na OW2 . 2.472(2) y
Na OE11 . 2.637(2) y
Na P3 2_764 3.4554(9) y
Na Na 2_764 3.611(2) y
Na H2W2 . 2.65(4) n
OE12 Na 1_556 2.373(2) n
OE31 Na 2_764 2.389(2) n
OW1 H1W1 . 0.74(3) n
OW1 H2W1 . 0.74(3) n
OW2 H1W2 . 0.80(3) n
OW2 H2W2 . 0.78(5) n
N1 C1 . 1.496(3) y
N1 H1N1 . 0.83(3) n
N1 H2N1 . 0.89(3) n
N1 H3N1 . 0.96(3) n
N2 C6 . 1.489(3) y
N2 H1N2 . 0.87(3) n
N2 H2N2 . 0.89(3) n
N2 H3N2 . 0.88(3) n
C1 C2 1_455 1.515(3) y
C1 H1C1 . 0.94(3) n
C1 H2C1 . 0.94(2) n
C2 C1 1_655 1.515(3) n
C2 C3 1_556 1.523(3) y
C2 H1C2 . 0.98(2) n
C2 H2C2 . 0.88(3) n
C3 C4 . 1.519(3) y
C3 C2 1_554 1.523(3) n
C3 H1C3 . 0.98(2) n
C3 H2C3 . 0.99(3) n
C4 C5 . 1.530(3) y
C4 H1C4 . 0.96(3) n
C4 H2C4 . 0.97(3) n
C5 C6 2_654 1.511(3) y
C5 H1C5 . 0.95(2) n
C5 H2C5 . 0.94(2) n
C6 C5 2_654 1.511(3) n
C6 H1C6 . 1.02(3) n
C6 H2C6 . 0.98(3) n