#------------------------------------------------------------------------------
#$Date: 2009-04-21 17:31:11 +0300 (Tue, 21 Apr 2009) $
#$Revision: 665 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/2001966.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_2001966
loop_
_publ_author_name
'Alex, G.'
'Srinivasan, S.'
'Bakthavatchalam, R.'
'Ramadas, S. R.'
'Varghese, B.'
_publ_section_title
;
 Structures of derivatives of the Diels--Alder adduct
 1,4,4a,5,8,8a,9a,10a-octahydro-1,4:5,8-dimethano-9,10-anthraquinone
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              303
_journal_page_last               307
_journal_volume                  49
_journal_year                    1993
_chemical_formula_moiety         'C18 H20 O3'
_chemical_formula_sum            'C18 H20 O3'
_chemical_formula_weight         284.37
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   12.036(3)
_cell_length_b                   28.753(3)
_cell_length_c                   8.451(3)
_cell_volume                     2924.96
_diffrn_radiation_type           Mo
_diffrn_radiation_wavelength     0.71069
_exptl_absorpt_coefficient_mu    0.081
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_meas      1.28
_exptl_crystal_F_000             1216
_[local]_cod_data_source_file    cd0067.cif
_[local]_cod_data_source_block   cd0067_structure_1_of_2
_[local]_cod_cif_authors_sg_H-M  'P bca'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
O(1) .8405(2) .43660(10) .1899(4) .059(2)
O(2) .9460(2) .27000(10) -.0485(3) .058(2)
O(3) 1.0014(4) .4547(2) .2935(6) .131(3)
C(1) .7340(3) .28270(10) .1976(5) .052(2)
C(2) .6513(3) .3072(2) .0916(5) .052(2)
C(3) .6414(3) .3500(2) .1470(5) .055(2)
C(4) .7158(3) .3548(2) .2893(5) .050(2)
C(4a) .8394(3) .35430(10) .2366(4) .041(2)
C(5) .9185(3) .4187(2) -.1593(5) .056(3)
C(6) 1.0368(3) .4009(2) -.1389(6) .063(2)
C(7) 1.0430(3) .3590(2) -.1999(5) .062(2)
C(8) .9301(3) .3468(2) -.2616(4) .056(2)
C(8a) .8537(3) .33960(10) -.1134(4) .040(2)
C(9) .8896(3) .30220(10) -.0018(4) .039(2)
C(9a) .8531(3) .30450(10) .1673(4) .041(2)
C(10) .8814(3) .39240(10) .1291(4) .040(2)
C(10a) .8448(3) .38960(10) -.0439(4) .043(2)
C(11) .7081(3) .3057(2) .3572(5) .059(2)
C(12) .8898(4) .3946(2) -.3163(5) .066(2)
C(13) .9057(4) .4630(2) .2791(5) .062(2)
C(14) .8457(5) .5019(2) .3556(8) .085(3)
H(1) .738(3) .248(2) .189(4) .071(11)
H(2) .618(3) .2900(10) -.006(5) .068(11)
H(3) .602(3) .3770(10) .106(4) .056(9)
H(4) .696(2) .3780(10) .353(4) .037(7)
H(4a) .886(3) .3570(10) .332(4) .052(9)
H(5) .905(4) .455(2) -.142(6) .108(14)
H(6) 1.092(4) .418(2) -.087(5) .071(12)
H(7) 1.105(3) .3380(10) -.187(5) .065(11)
H(8) .929(3) .3210(10) -.342(4) .048(9)
H(8a) .780(2) .3280(10) -.153(4) .032(7)
H(9a) .910(3) .2860(10) .224(4) .037(7)
H(10) .960(3) .3920(10) .141(4) .023(7)
H(10a) .769(3) .4010(10) -.054(5) .063(10)
H(11.1) .631(3) .2980(10) .402(5) .068(11)
H(11.2) .762(4) .294(2) .457(6) .132(16)
H(12.1) .933(4) .407(2) -.412(5) .096(14)
H(12.2) .820(4) .397(2) -.339(6) .086(13)
H(14.1) .904(4) .522(2) .426(8) .15(3)
H(14.2) .782(4) .488(2) .431(6) .24(7)
H(14.3) .810(4) .524(2) .266(5) .11(2)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O(1) C(10) 1.456(4)
O(1) C(13) 1.327(6)
O(2) C(9) 1.214(4)
O(3) C(13) 1.183(7)
C(1) C(2) 1.513(6)
C(1) C(9a) 1.585(5)
C(1) C(11) 1.534(6)
C(2) C(3) 1.322(8)
C(3) C(4) 1.506(6)
C(4) C(4a) 1.553(5)
C(4) C(11) 1.527(8)
C(4a) C(9a) 1.556(4)
C(4a) C(10) 1.510(4)
C(5) C(6) 1.523(6)
C(5) C(10a) 1.561(6)
C(5) C(12) 1.536(6)
C(6) C(7) 1.312(8)
C(7) C(8) 1.497(5)
C(8) C(8a) 1.568(5)
C(8) C(12) 1.529(8)
C(8a) C(9) 1.494(4)
C(8a) C(10a) 1.557(4)
C(9) C(9a) 1.496(5)
C(10) C(10a) 1.529(5)
C(13) C(14) 1.480(8)