#------------------------------------------------------------------------------
#$Date: 2016-02-19 16:29:56 +0200 (Fri, 19 Feb 2016) $
#$Revision: 176759 $
#$URL: svn://www.crystallography.net/cod/cif/2/00/63/2006303.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_2006303
loop_
_publ_author_name
'Lalancette, Roger A.'
'Thompson, Hugh W.'
'Coté, Marie L.'
_publ_section_title
;Hydrogen-Bonding Pattern of an α,β-Unsaturated δ-Keto Acid:
 1',3'-Dihydro-2-methyl-6-oxospiro[2-cyclohexene-1,2'-2'H-indene]-3-carboxylic
 Acid
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              901
_journal_page_last               903
_journal_paper_doi               10.1107/S0108270197003260
_journal_volume                  53
_journal_year                    1997
_chemical_formula_analytical     'C16 H16 O3'
_chemical_formula_moiety         'C16 H16 O3'
_chemical_formula_structural     'C16 H16 O3'
_chemical_formula_sum            'C16 H16 O3'
_chemical_formula_weight         256.29
_chemical_melting_point          469
_chemical_name_systematic
Spiro[3-carboxy-1',3'-dihydro-2-methyl-6-oxo-2-cyclohexene-1,2'-[2H]indene]
_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'
_audit_creation_method           SHELXL
_cell_angle_alpha                90
_cell_angle_beta                 90.669(9)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   19.515(3)
_cell_length_b                   5.8352(9)
_cell_length_c                   22.854(3)
_cell_measurement_reflns_used    19
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      12.4
_cell_measurement_theta_min      7.0
_cell_volume                     2602.3(7)
_computing_cell_refinement       XSCANS
_computing_data_collection       'XSCANS (Siemens, 1991)'
_computing_data_reduction        XSCANS
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 1994)'
_diffrn_ambient_temperature      295(2)
_diffrn_measurement_device       'Siemens P4'
_diffrn_measurement_method       2θ/θ
_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  0.0466
_diffrn_reflns_av_sigmaI/netI    0.0725
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            3020
_diffrn_reflns_theta_max         25
_diffrn_reflns_theta_min         1.50
_diffrn_standards_decay_%        2.50
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.994
_exptl_absorpt_correction_T_min  0.972
_exptl_absorpt_correction_type   'Face-indexed numerical'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_meas      1.300(10)
_exptl_crystal_density_method    'flotation in cyclohexane/CCl~3~Br'
_exptl_crystal_description       Rhombus
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.353
_refine_diff_density_min         -0.193
_refine_ls_extinction_coef       0.0133(15)
_refine_ls_extinction_method     'SHELXTL (Sheldrick, 1994)'
_refine_ls_goodness_of_fit_all   0.904
_refine_ls_goodness_of_fit_obs   1.069
_refine_ls_hydrogen_treatment    'H atoms: see below'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     178
_refine_ls_number_reflns         2276
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.904
_refine_ls_restrained_S_obs      1.069
_refine_ls_R_factor_all          0.0920
_refine_ls_R_factor_obs          .0555
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[σ²(Fo²)+(0.0845P)²] where P = (Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1480
_refine_ls_wR_factor_obs         .1328
_reflns_number_observed          1376
_reflns_number_total             2276
_reflns_observed_criterion       >4sigma(F)
_cod_data_source_file            fg1273.cif
_cod_data_source_block           lalancette
_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.

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (6 times).

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

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.

'_geom_bond_publ_flag' value 'Y' changed to 'y'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (6
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (9
times).

'_geom_torsion_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (8 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0845P)^2^] where P = (Fo^2^+2Fc^2^)/3' was changed
to 'calc'. New tag '_refine_ls_weighting_details' was created. The
value of the new tag was set to 'w = 1/[\s^2^(Fo^2^)+(0.0845P)^2^]
where P = (Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2006303
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_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_refinement_flags
_atom_site_occupancy
_atom_site_disorder_group
_atom_site_type_symbol
O1 .22623(11) .0834(4) .40749(9) .0742(7) Uani d . 1 . O
O2 -.00387(11) .7839(5) .45066(10) .0964(9) Uani d . 1 . O
O3 .08056(13) .8900(5) .50604(12) .1148(12) Uani d . 1 . O
H3C .0524(18) 1.001(6) .5267(15) .100 Uiso d . 1 . H
C1 .14505(12) .3346(4) .36083(9) .0397(6) Uani d . 1 . C
C2 .09264(12) .4961(4) .38794(9) .0379(6) Uani d . 1 . C
C3 .10373(12) .5953(4) .44036(10) .0425(6) Uani d . 1 . C
C4 .16771(10) .5539(3) .47702(8) .0561(8) Uani d . 1 . C
C5 .22660(10) .4681(3) .44036(8) .0549(7) Uani d R 1 . C
C6 .20233(13) .2738(5) .40381(10) .0470(7) Uani d . 1 . C
C7 .05641(14) .7634(5) .46599(11) .0504(7) Uani d . 1 . C
C8 .03080(13) .5416(5) .34970(11) .0516(7) Uani d . 1 . C
C1' .11139(14) .1173(4) .33412(10) .0471(7) Uani d . 1 . C
C3' .18024(13) .4602(4) .30772(10) .0462(7) Uani d . 1 . C
C3A' .15637(12) .3313(4) .25443(10) .0401(6) Uani d . 1 . C
C4' .16860(13) .3876(5) .19631(11) .0531(7) Uani d . 1 . C
C5' .14300(14) .2446(6) .15315(11) .0612(9) Uani d . 1 . C
C6' .10716(15) .0488(6) .16738(12) .0616(8) Uani d . 1 . C
C7' .09513(14) -.0052(5) .22518(11) .0535(7) Uani d . 1 . C
C7A' .11947(12) .1384(4) .26884(10) .0424(6) Uani d . 1 . C
H4A .18050(10) .6923(3) .49707(8) .063(3) Uiso d R 1 . H
H4B .15730(10) .4399(3) .50587(8) .063(3) Uiso d R 1 . H
H5A .24263(10) .5903(3) .41596(8) .063(3) Uiso d R 1 . H
H5B .26387(10) .4176(3) .46495(8) .063(3) Uiso d R 1 . H
H8A .0408(5) .500(4) .3101(2) .058(7) Uiso calc PR .76(3) . H
H8B .0194(8) .7015(9) .3514(9) .058(7) Uiso calc PR .76(3) . H
H8C -.0072(4) .452(3) .3632(7) .058(7) Uiso calc PR .76(3) . H
H8D -.0055(4) .603(4) .3731(2) .058(7) Uiso calc PR .24(3) . H
H8E .0160(8) .4011(9) .3317(9) .058(7) Uiso calc PR .24(3) . H
H8F .0425(4) .650(3) .3199(7) .058(7) Uiso calc PR .24(3) . H
H1'A .06372(14) .1111(4) .34392(10) .063(3) Uiso d R 1 . H
H1'B .13496(14) -.0167(4) .34812(10) .063(3) Uiso d R 1 . H
H3'A .22923(13) .4522(4) .31145(10) .063(3) Uiso d R 1 . H
H3'B .16662(13) .6181(4) .30565(10) .063(3) Uiso d R 1 . H
H4' .19437(13) .5220(5) .18645(11) .066(4) Uiso d R 1 . H
H5' .14998(14) .2821(6) .11275(11) .066(4) Uiso d R 1 . H
H6' .09058(15) -.0491(6) .13656(12) .066(4) Uiso d R 1 . H
H7' .07072(14) -.1422(5) .23525(11) .066(4) Uiso d R 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'
O O 0.0106 0.0060 '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_publ_flag
C7 O3 H3C 122(2) y
C6 C1 C2 111.9(2) ?
C6 C1 C1' 111.6(2) ?
C2 C1 C1' 112.4(2) ?
C6 C1 C3' 106.3(2) ?
C2 C1 C3' 108.9(2) ?
C1' C1 C3' 105.2(2) ?
C3 C2 C8 124.1(2) ?
C3 C2 C1 121.7(2) ?
C8 C2 C1 114.2(2) ?
C2 C3 C7 123.0(2) y
C2 C3 C4 123.1(2) ?
C7 C3 C4 113.7(2) y
C3 C4 C5 111.86(11) ?
C6 C5 C4 108.96(12) ?
O1 C6 C5 122.9(2) y
O1 C6 C1 122.7(2) y
C5 C6 C1 114.4(2) y
O2 C7 O3 119.8(2) y
O2 C7 C3 123.6(2) y
O3 C7 C3 116.6(2) y
C7A' C1' C1 105.9(2) ?
C3A' C3' C1 104.9(2) ?
C7A' C3A' C4' 121.1(2) ?
C7A' C3A' C3' 111.9(2) ?
C4' C3A' C3' 127.0(2) ?
C5' C4' C3A' 118.3(3) ?
C6' C5' C4' 120.8(2) ?
C5' C6' C7' 120.4(3) ?
C6' C7' C7A' 119.4(3) ?
C3A' C7A' C7' 119.9(2) ?
C3A' C7A' C1' 111.4(2) ?
C7' C7A' C1' 128.7(2) ?
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
O1 C6 . 1.207(3) y
O2 C7 . 1.229(3) y
O3 C7 . 1.263(3) y
C1 C6 . 1.522(3) y
C1 C2 . 1.527(3) ?
C1 C1' . 1.550(3) ?
C1 C3' . 1.581(3) ?
C2 C3 . 1.346(3) ?
C2 C8 . 1.505(3) ?
C3 C7 . 1.474(3) y
C3 C4 . 1.515(3) ?
C4 C5 . 1.515(4) ?
C5 C6 . 1.483(3) y
C1' C7A' . 1.507(3) ?
C3' C3A' . 1.501(3) ?
C3A' C7A' . 1.378(3) ?
C3A' C4' . 1.391(3) ?
C4' C5' . 1.381(4) ?
C5' C6' . 1.381(4) ?
C6' C7' . 1.381(4) ?
C7' C7A' . 1.383(3) ?
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_publ_flag
C6 C1 C2 C3 9.4(3) ?
C1' C1 C2 C3 135.9(2) ?
C3' C1 C2 C3 -107.8(2) ?
C6 C1 C2 C8 -173.6(2) ?
C1' C1 C2 C8 -47.1(3) ?
C3' C1 C2 C8 69.1(2) ?
C8 C2 C3 C7 -0.8(4) ?
C1 C2 C3 C7 175.8(2) y
C8 C2 C3 C4 -177.5(2) ?
C1 C2 C3 C4 -0.9(4) ?
C2 C3 C4 C5 21.5(3) ?
C7 C3 C4 C5 -155.5(2) y
C3 C4 C5 C6 -49.8(2) ?
C4 C5 C6 O1 -118.9(2) y
C4 C5 C6 C1 61.5(2) ?
C2 C1 C6 O1 140.0(3) y
C1' C1 C6 O1 13.0(3) ?
C3' C1 C6 O1 -101.2(3) ?
C2 C1 C6 C5 -40.5(3) ?
C1' C1 C6 C5 -167.4(2) ?
C3' C1 C6 C5 78.3(2) ?
C2 C3 C7 O2 19.7(4) y
C4 C3 C7 O2 -163.3(3) y
C2 C3 C7 O3 -160.7(3) y
C4 C3 C7 O3 16.3(4) y
C6 C1 C1' C7A' -121.9(2) ?
C2 C1 C1' C7A' 111.4(2) ?
C3' C1 C1' C7A' -7.0(2) ?
C6 C1 C3' C3A' 126.6(2) ?
C2 C1 C3' C3A' -112.6(2) ?
C1' C1 C3' C3A' 8.1(2) ?
C1 C3' C3A' C7A' -6.6(3) ?
C1 C3' C3A' C4' 174.1(2) ?
C7A' C3A' C4' C5' -0.2(4) ?
C3' C3A' C4' C5' 179.0(2) ?
C3A' C4' C5' C6' -1.1(4) ?
C4' C5' C6' C7' 1.3(4) ?
C5' C6' C7' C7A' -0.2(4) ?
C4' C3A' C7A' C7' 1.3(4) ?
C3' C3A' C7A' C7' -178.1(2) ?
C4' C3A' C7A' C1' -178.5(2) ?
C3' C3A' C7A' C1' 2.2(3) ?
C6' C7' C7A' C3A' -1.1(4) ?
C6' C7' C7A' C1' 178.6(3) ?
C1 C1' C7A' C3A' 3.3(3) ?
C1 C1' C7A' C7' -176.4(3) ?
