#==============================================================================
data_global
#==============================================================================
# 0. AUDIT DETAILS
_audit_creation_date 'Mar 26 10:47:19 2012'
_audit_creation_method 'PLATON
option'
_audit_update_record
;
;
#===============================================================================
# 1. SUBMISSION DETAILS
_publ_contact_author_name
; Prof. Tayur N. Guru Row
;
_publ_contact_author_address
; Solid State and Structural Chemistry Unit
Indian Institute of Science
C.V.Raman Avenue
Bangalore
560 012
Karnataka
India
;
_publ_contact_author_email ssctng@sscu.iisc.ernet.in
_publ_contact_author_fax '+31 30 2533940'
_publ_contact_author_phone '+31 30 2532538'
_publ_requested_journal 'Crystal Growth and Design'
# Publication choise FI, CI or EI for Inorganic
# FM, CM or EM for Metal-organic
# FO, CO or EO for Organic
_publ_requested_category ?
_publ_requested_coeditor_name ?
_publ_contact_letter # Include date of submission
;
Date of submission ?
Please consider this CIF submission for publication as a
Regular Structural Paper in Acta Crystallographica C.
;
#===============================================================================
# 2. PROCESSING SUMMARY (JOURNAL OFFICE ONLY)
_journal_date_recd_electronic ?
_journal_date_to_coeditor ?
_journal_date_from_coeditor ?
_journal_date_accepted ?
_journal_date_printers_first ?
_journal_date_printers_final ?
_journal_date_proofs_out ?
_journal_date_proofs_in ?
_journal_coeditor_name ?
_journal_coeditor_code ?
_journal_coeditor_notes
;
;
_journal_techeditor_code ?
_journal_techeditor_notes
;
;
_journal_coden_ASTM ?
_journal_name_full ?
_journal_year ?
_journal_volume ?
_journal_issue ?
_journal_page_first ?
_journal_page_last ?
_journal_suppl_publ_number ?
_journal_suppl_publ_pages ?
#===============================================================================
# 3. TITLE AND AUTHOR LIST
_publ_section_title
;
Title (type here to add)
;
_publ_section_title_footnote
.
# The loop structure below should contain the names and adresses of all
# authors, in the required order of publication. Repeat as necessary.
loop_
_publ_author_name
_publ_author_address
_publ_author_footnote
_publ_author_email
'Row, Tayur N. Guru'
;
Solid State and Structural Chemistry Unit
Indian Institute of Science
C.V.Raman Avenue
Bangalore
560 012
Karnataka
India
;
;
# author related footnote
;
.
'Kaur, Ramanpreet'
;
Solid State and Structural Chemistry Unit
Indian Institute of Science
C.V.raman Avenue
Bangalore
560 012
Karnataka
India
;
.
.
#===============================================================================
# 4. TEXT
_publ_section_synopsis
;
?
;
_publ_section_abstract
;
?
;
# Insert blank lines between paragraphs
_publ_section_comment
;
;
_publ_section_exptl_prep
;
?
;
_publ_section_exptl_refinement
;
?
;
# Insert blank lines between references
_publ_section_references
;
Allen, F.H. (2002).
Acta Cryst. B58, 380-388.
Altomare, A., Burla, M.C., Camalli, M., Cascarano, G.L., Giacovazzo, C.
Guagliardi, A., Moliterni, A.G.G., Polidori, G. & Spagna, R.
(1999) J. Appl. Cryst. 32, 115-119.
Beurskens, P.T., Beurskens, G., de Gelder, R., Garc\'ia-Granda, S.,
Gould, R.O., Israel, R. & Smits, J.M.M. (1999) The DIRDIF99 Program System,
Technical Report of the Crystallography Laboratory,
University of Nijmegen, The Netherlands.
Boer, J.L. de & Duisenberg, A.J.M. (1984). Acta Cryst. A40, C-410.
Boeyens, J.C.A. (1978). J.Cryst.Mol.Struct. 8, 317-320.
Cremer, D. & Pople, J.A. (1975). J. Am. Chem. Soc. 97, 1354-1358.
Duisenberg, A.J.M. (1992). J. Appl. Cryst. 25, 92-96.
Duisenberg, A.J.M., Kroon-Batenburg, L.M.J. & Schreurs, A.M.M. (2003).
J. Appl. Cryst. 36, 220-229.
Enraf-Nonius (1989). CAD-4 Software. Version 5. Enraf-Nonius, Delft,
The Netherlands.
Flack, H.D. (1983). Acta Cryst. A39, 876-881.
Hooft, R.W.W. (1998). Collect Software, Nonius B.V., Delft, The Netherlands.
LePage, Y. (1987). J. Appl. Cryst. 20, 264-269.
Mackay, A.L. (1984). Acta Cryst. A40, 165-166.
Meulenaer, J. de & Tompa, H. (1965). Acta Cryst. 19, 1014-1018.
North, A.C.T., Phillips, D.C. & Mathews, F.S. (1968).
Acta Cryst. A24, 351-359.
Otwinowski, Z. & Minor, W. (1997). Methods in Enzymology, Vol. 276,
Macromolecular Crystallography, Part A, edited by C.W. Carter &
R.M. Sweet, pp. 307-326. London: Academic Press.
Sheldrick, G.M. (1986). SHELXS86. University of G\"ottingen, Germany.
Sheldrick, G.M. (1993). SHELXL93. University of G\"ottingen, Germany.
Sheldrick, G.M. (1997). SHELXS97. University of G\"ottingen, Germany.
Sheldrick, G.M. (1997). SHELXL97. University of G\"ottingen, Germany.
Sluis, P. van der & Spek, A.L. (1990). Acta Cryst. A46, 194-201.
Spek, A.L. (1987). Acta Cryst. C43, 1233-1235.
Spek, A.L. (1988). J. Appl. Cryst. 21, 578-579.
Spek, A.L. (1994). Am. Crystallogr. Assoc.-Abstracts, 22, 66.
Spek, A.L. (1997). HELENA, Program for Datareduction, Utrecht
University, The Netherlands.
Spek, A.L. (2003). J. Appl. Cryst. 36, 7-13.
Wilson, A.J.C. (1992). Ed. International Tables for Crystallography,
Volume C, Kluwer Academic Publishers, Dordrecht, The Netherlands.
;
_publ_section_acknowledgements
;
;
_publ_section_figure_captions
; View of the title compound with the atom numbering scheme.
Displacement ellipsoids for non-H atoms are drawn at the 50% probability level.
;
#===============================================================================
data_final
#===============================================================================
# 5. CHEMICAL DATA
_chemical_name_systematic
;
;
_chemical_name_common 'gallic acid monohydrate acetamide'
_chemical_melting_point ?
_chemical_formula_moiety
'C7 H6 O5, C2 H5 N O'
# Ex: 'C12 H16 N2 O6, H2 O' and '(Cd 2+)3, (C6 N6 Cr 3-)2, 2(H2 O)'
_chemical_formula_structural ?
_chemical_formula_sum
'C9 H11 N O6'
_chemical_formula_iupac ?
_chemical_formula_weight 229.19
_chemical_compound_source 'see text'
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
O O 0.0106 0.0060
'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'
H H 0.0000 0.0000
'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
C C 0.0033 0.0016
'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
#===============================================================================
# 6. CRYSTAL DATA
_symmetry_cell_setting Monoclinic
_symmetry_space_group_name_Hall '-P 2yn'
_symmetry_space_group_name_H-M 'P 21/n'
_symmetry_Int_Tables_number 14
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 x,y,z
2 1/2-x,1/2+y,1/2-z
3 -x,-y,-z
4 1/2+x,1/2-y,1/2+z
_cell_length_a 4.2630(2)
_cell_length_b 22.5002(10)
_cell_length_c 10.0489(3)
_cell_angle_alpha 90
_cell_angle_beta 92.868(3)
_cell_angle_gamma 90
_cell_volume 962.67(7)
_cell_formula_units_Z 4
_cell_measurement_temperature 110(2)
_cell_measurement_reflns_used 5890
_cell_measurement_theta_min 2.7
_cell_measurement_theta_max 25.0
_cell_special_details
;
;
_exptl_crystal_description 'needle'
_exptl_crystal_colour 'colourless'
_exptl_crystal_size_max 0.22
_exptl_crystal_size_mid 0.20
_exptl_crystal_size_min 0.18
_exptl_crystal_size_rad ?
_exptl_crystal_density_meas ?
_exptl_crystal_density_diffrn 1.581
_exptl_crystal_density_method 'Not Measured'
_exptl_crystal_F_000 480
_exptl_absorpt_coefficient_mu 0.135
_exptl_crystal_density_meas_temp ?
# Permitted for _exptl_absorpt_correction_type :
# analytical 'analytical from crystal shape'
# Example: de Meulenaer&Tompa: ABST
# cylinder 'cylindrical'
# gaussian 'Gaussian from crystal shape'
# Example: PLATON/ABSG
# integration 'integration from crystal shape'
# multi-scan 'symmetry-related measurements'
# Example: SADABS, MULABS
# none 'no absorption corr. applied'
# numerical 'numerical from crystal shape'
# psi-scan 'psi-scan corrections'
# Example: PLATON/ABSP
# refdelf 'refined from delta-F'
# Example: SHELXA,
# sphere 'spherical'
# Example: PLATON/ABSS
_exptl_absorpt_correction_type 'multi-scan'
_exptl_absorpt_process_details 'CrysAlis RED (Oxford Diffraction,2009)'
_exptl_absorpt_correction_T_min 0.9709
_exptl_absorpt_correction_T_max 0.9761
#===============================================================================
# 7. EXPERIMENTAL DATA
_exptl_special_details
;
;
_diffrn_ambient_temperature 110(2)
_diffrn_radiation_wavelength 0.71073
_diffrn_radiation_probe 'x-ray'
_diffrn_radiation_type 'MoK\a'
_diffrn_radiation_source 'Enhance (Mo) X-ray Source'
_diffrn_radiation_monochromator 'graphite'
_diffrn_measurement_device_type 'Oxford Xcalibur,Eos(Nova) CCD detector'
_diffrn_measurement_method '\w scans'
_diffrn_detector_area_resol_mean ?
# number of measured reflections (redundant set)
_diffrn_reflns_number 5890
_diffrn_reflns_av_R_equivalents 0.0364
_diffrn_reflns_av_sigmaI/netI 0.0353
_diffrn_reflns_limit_h_min -5
_diffrn_reflns_limit_h_max 5
_diffrn_reflns_limit_k_min -26
_diffrn_reflns_limit_k_max 26
_diffrn_reflns_limit_l_min -11
_diffrn_reflns_limit_l_max 11
_diffrn_reflns_theta_min 2.72
_diffrn_reflns_theta_max 24.99
_diffrn_measured_fraction_theta_max 0.999
_diffrn_reflns_theta_full 24.99
_diffrn_measured_fraction_theta_full 0.999
_diffrn_reflns_reduction_process
;
;
# number of unique reflections
_reflns_number_total 1682
# number of observed reflections (> n sig(I))
_reflns_number_gt 1418
_reflns_threshold_expression >2sigma(I)
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_structure_solution 'SHELXS97 (Sheldrick, 2008)'
_computing_structure_refinement 'SHELXL97 (Sheldrick, 2008)'
_computing_molecular_graphics
'Ortep-3 (Farrugia, 1997) and CAMERON (Watkin et al., 1993)'
_computing_publication_material 'WinGX (Farrugia, 1999)'
#===============================================================================
# 8. REFINEMENT DATA
_refine_special_details
;
Refinement of F^2^ against ALL reflections. The weighted R-factor wR and
goodness of fit S are based on F^2^, conventional R-factors R are based
on F, with F set to zero for negative F^2^. The threshold expression of
F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is
not relevant to the choice of reflections for refinement. R-factors based
on F^2^ are statistically about twice as large as those based on F, and R-
factors based on ALL data will be even larger.
;
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type full
_refine_ls_weighting_scheme calc
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0491P)^2^+0.1682P] where P=(Fo^2^+2Fc^2^)/3'
_atom_sites_solution_primary direct
_atom_sites_solution_secondary difmap
_atom_sites_solution_hydrogens geom
_refine_ls_hydrogen_treatment mixed
_refine_ls_extinction_method none
_refine_ls_extinction_coef ?
_refine_ls_number_reflns 1682
_refine_ls_number_parameters 178
_refine_ls_number_restraints 0
_refine_ls_R_factor_all 0.0453
_refine_ls_R_factor_gt 0.0364
_refine_ls_wR_factor_ref 0.0991
_refine_ls_wR_factor_gt 0.0915
_refine_ls_goodness_of_fit_ref 1.090
_refine_ls_restrained_S_all 1.090
_refine_ls_shift/su_max 0.000
_refine_ls_shift/su_mean 0.000
_refine_diff_density_max 0.177
_refine_diff_density_min -0.268
_refine_diff_density_rms 0.052
#===============================================================================
# 9. ATOMIC COORDINATES AND DISPLACEMENT PARAMETERS
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
_atom_site_disorder_assembly
_atom_site_disorder_group
O3 O 0.3738(3) 0.17974(6) 0.63174(11) 0.0155(3) Uani 1 1 d . . .
O4 O 0.6272(3) 0.24655(5) 0.83644(12) 0.0146(3) Uani 1 1 d . . .
O2 O -0.3038(3) 0.02843(6) 0.85198(11) 0.0183(3) Uani 1 1 d . . .
O5 O 0.4510(3) 0.22821(6) 1.09397(11) 0.0163(3) Uani 1 1 d . . .
O1 O -0.2778(3) 0.05227(6) 1.06836(11) 0.0184(3) Uani 1 1 d . . .
C2 C 0.0077(3) 0.11084(8) 0.91827(15) 0.0138(4) Uani 1 1 d . . .
O6 O 0.4687(3) 0.07912(6) 0.51520(12) 0.0267(4) Uani 1 1 d . . .
C5 C 0.4170(4) 0.20267(8) 0.85996(15) 0.0130(4) Uani 1 1 d . . .
C7 C 0.0826(4) 0.12104(8) 0.78657(16) 0.0136(4) Uani 1 1 d . . .
C6 C 0.2868(4) 0.16652(7) 0.75827(16) 0.0127(4) Uani 1 1 d . . .
C3 C 0.1310(4) 0.14775(8) 1.01987(16) 0.0141(4) Uani 1 1 d . . .
C4 C 0.3330(4) 0.19334(8) 0.99081(15) 0.0132(4) Uani 1 1 d . . .
C1 C -0.2026(4) 0.06207(8) 0.95387(16) 0.0139(4) Uani 1 1 d . . .
N1 N 0.7434(4) 0.02982(8) 0.36633(15) 0.0212(4) Uani 1 1 d . . .
C8 C 0.7291(5) 0.13698(9) 0.35511(19) 0.0271(5) Uani 1 1 d . . .
H8A H 0.6260 0.1699 0.3993 0.041 Uiso 1 1 calc R . .
H8B H 0.6630 0.1366 0.2603 0.041 Uiso 1 1 calc R . .
H8C H 0.9575 0.1420 0.3648 0.041 Uiso 1 1 calc R . .
C9 C 0.6392(4) 0.07974(8) 0.41731(16) 0.0171(4) Uani 1 1 d . . .
H3 H 0.075(4) 0.1424(8) 1.1116(19) 0.014(4) Uiso 1 1 d . . .
H7 H -0.005(4) 0.0980(9) 0.7152(19) 0.019(5) Uiso 1 1 d . . .
H1A H 0.677(4) -0.0053(10) 0.401(2) 0.023(5) Uiso 1 1 d . . .
H1B H 0.852(5) 0.0322(10) 0.296(2) 0.034(6) Uiso 1 1 d . . .
H2O H -0.442(7) -0.0001(13) 0.884(3) 0.062(8) Uiso 1 1 d . . .
H4O H 0.687(5) 0.2449(11) 0.757(3) 0.044(7) Uiso 1 1 d . . .
H5O H 0.577(6) 0.2547(11) 1.069(2) 0.040(7) Uiso 1 1 d . . .
H3O H 0.404(6) 0.1447(12) 0.585(3) 0.052(7) Uiso 1 1 d . . .
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
O3 0.0222(6) 0.0139(7) 0.0108(6) 0.0002(5) 0.0040(4) 0.0003(5)
O4 0.0165(6) 0.0138(7) 0.0137(6) 0.0007(5) 0.0040(4) -0.0020(5)
O2 0.0207(7) 0.0176(7) 0.0165(6) -0.0011(5) 0.0005(5) -0.0056(5)
O5 0.0194(7) 0.0168(7) 0.0129(6) -0.0023(5) 0.0017(5) -0.0050(5)
O1 0.0197(7) 0.0196(8) 0.0159(6) 0.0029(5) 0.0019(5) -0.0041(5)
C2 0.0093(8) 0.0150(10) 0.0170(8) 0.0017(7) 0.0013(6) 0.0033(7)
O6 0.0441(8) 0.0163(8) 0.0212(7) -0.0010(5) 0.0168(6) -0.0031(6)
C5 0.0114(8) 0.0113(9) 0.0164(8) 0.0010(7) 0.0014(6) 0.0031(7)
C7 0.0135(8) 0.0131(9) 0.0143(8) -0.0018(7) -0.0001(6) 0.0031(7)
C6 0.0129(8) 0.0125(9) 0.0129(8) 0.0026(7) 0.0027(6) 0.0055(7)
C3 0.0122(8) 0.0162(10) 0.0142(9) 0.0016(7) 0.0020(6) 0.0030(7)
C4 0.0117(8) 0.0131(10) 0.0146(8) -0.0014(7) -0.0004(6) 0.0035(7)
C1 0.0121(8) 0.0134(10) 0.0162(8) 0.0004(7) 0.0000(6) 0.0035(7)
N1 0.0312(9) 0.0158(10) 0.0173(8) -0.0011(7) 0.0089(6) -0.0046(7)
C8 0.0405(11) 0.0174(11) 0.0247(10) -0.0008(8) 0.0145(8) -0.0029(9)
C9 0.0199(9) 0.0181(10) 0.0132(8) -0.0013(7) -0.0009(6) -0.0030(8)
#===============================================================================
# 10. MOLECULAR GEOMETRY
_geom_special_details
;
All esds (except the esd in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell esds are taken
into account individually in the estimation of esds in distances, angles
and torsion angles; correlations between esds in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell esds is used for estimating esds involving l.s. planes.
;
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
O3 C6 1.375(2) . ?
O3 H3O 0.93(3) . ?
O4 C5 1.362(2) . ?
O4 H4O 0.85(3) . ?
O2 C1 1.328(2) . ?
O2 H2O 0.94(3) . ?
O5 C4 1.375(2) . ?
O5 H5O 0.85(3) . ?
O1 C1 1.230(2) . ?
C2 C7 1.396(2) . ?
C2 C3 1.398(2) . ?
C2 C1 1.472(2) . ?
O6 C9 1.252(2) . ?
C5 C4 1.396(2) . ?
C5 C6 1.399(2) . ?
C7 C6 1.382(2) . ?
C7 H7 0.95(2) . ?
C3 C4 1.380(3) . ?
C3 H3 0.971(19) . ?
N1 C9 1.321(2) . ?
N1 H1A 0.91(2) . ?
N1 H1B 0.86(2) . ?
C8 C9 1.490(3) . ?
C8 H8A 0.9800 . ?
C8 H8B 0.9800 . ?
C8 H8C 0.9800 . ?
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
C6 O3 H3O 109.7(16) . . ?
C5 O4 H4O 111.2(16) . . ?
C1 O2 H2O 108.1(17) . . ?
C4 O5 H5O 112.7(16) . . ?
C7 C2 C3 119.94(16) . . ?
C7 C2 C1 121.60(15) . . ?
C3 C2 C1 118.46(15) . . ?
O4 C5 C4 118.32(14) . . ?
O4 C5 C6 122.35(14) . . ?
C4 C5 C6 119.32(16) . . ?
C6 C7 C2 119.55(15) . . ?
C6 C7 H7 118.6(11) . . ?
C2 C7 H7 121.9(11) . . ?
O3 C6 C7 123.52(15) . . ?
O3 C6 C5 115.74(15) . . ?
C7 C6 C5 120.73(15) . . ?
C4 C3 C2 120.19(15) . . ?
C4 C3 H3 118.6(11) . . ?
C2 C3 H3 121.2(11) . . ?
O5 C4 C3 118.24(14) . . ?
O5 C4 C5 121.53(15) . . ?
C3 C4 C5 120.22(15) . . ?
O1 C1 O2 121.95(16) . . ?
O1 C1 C2 123.47(15) . . ?
O2 C1 C2 114.57(14) . . ?
C9 N1 H1A 118.2(13) . . ?
C9 N1 H1B 117.9(15) . . ?
H1A N1 H1B 123(2) . . ?
C9 C8 H8A 109.5 . . ?
C9 C8 H8B 109.5 . . ?
H8A C8 H8B 109.5 . . ?
C9 C8 H8C 109.5 . . ?
H8A C8 H8C 109.5 . . ?
H8B C8 H8C 109.5 . . ?
O6 C9 N1 121.00(17) . . ?
O6 C9 C8 120.72(16) . . ?
N1 C9 C8 118.28(16) . . ?
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
C3 C2 C7 C6 2.1(2) . . . . ?
C1 C2 C7 C6 -178.52(15) . . . . ?
C2 C7 C6 O3 179.98(14) . . . . ?
C2 C7 C6 C5 -0.5(2) . . . . ?
O4 C5 C6 O3 -2.8(2) . . . . ?
C4 C5 C6 O3 178.06(14) . . . . ?
O4 C5 C6 C7 177.69(14) . . . . ?
C4 C5 C6 C7 -1.5(2) . . . . ?
C7 C2 C3 C4 -1.6(2) . . . . ?
C1 C2 C3 C4 178.93(14) . . . . ?
C2 C3 C4 O5 -179.41(14) . . . . ?
C2 C3 C4 C5 -0.4(2) . . . . ?
O4 C5 C4 O5 1.7(2) . . . . ?
C6 C5 C4 O5 -179.07(14) . . . . ?
O4 C5 C4 C3 -177.28(14) . . . . ?
C6 C5 C4 C3 1.9(2) . . . . ?
C7 C2 C1 O1 -178.84(15) . . . . ?
C3 C2 C1 O1 0.6(2) . . . . ?
C7 C2 C1 O2 1.9(2) . . . . ?
C3 C2 C1 O2 -178.65(14) . . . . ?
#===END