#------------------------------------------------------------------------------
#$Date: 2023-03-13 09:35:08 +0200 (Mon, 13 Mar 2023) $
#$Revision: 281832 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/10/56/2105676.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_2105676
loop_
_publ_author_name
'Herbstein, Frank H.'
'Iversen, Bo Brummerstedt'
'Kapon, Moshe'
'Larsen, Finn Krebs'
'Madsen, Georg Kent Hellerup'
'Reisner, George M.'
_publ_section_title
;
 X-ray and neutron diffraction study of benzoylacetone in the temperature
 range 8--300 K: comparison with other cis-enol molecules
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              767
_journal_page_last               787
_journal_paper_doi               10.1107/S0108768199004279
_journal_volume                  55
_journal_year                    1999
_chemical_formula_iupac          'C10 H10 O2'
_chemical_formula_sum            'C10 H10 O2'
_chemical_formula_weight         162.188
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_type_scat_source
' Sears, V. F.; Neutron News; 1992; 3; 26-37.'
_cell_angle_alpha                90.00
_cell_angle_beta                 110.42(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.027(7)
_cell_length_b                   5.483(2)
_cell_length_c                   19.478(13)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    20.0(10)
_cell_measurement_theta_max      43.8
_cell_measurement_theta_min      8.1
_cell_volume                     803.4(10)
_diffrn_ambient_temperature      20.0(10)
_diffrn_measurement_device       'Huber 512'
_diffrn_measurement_method       '2θ/ω scans'
_diffrn_radiation_monochromator  Berylium
_diffrn_radiation_probe          neutron
_diffrn_radiation_type           neutron
_diffrn_radiation_wavelength     1.012
_diffrn_reflns_av_R_equivalents  .023
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            2722
_diffrn_reflns_theta_max         45.19
_diffrn_reflns_theta_min         3.19
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    .1993
_exptl_absorpt_correction_T_max  .737
_exptl_absorpt_correction_T_min  .555
_exptl_absorpt_correction_type   gaussian
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.350
_exptl_crystal_density_meas      ?
_exptl_crystal_description       prism
_exptl_crystal_size_max          6.0
_exptl_crystal_size_mid          2.8
_exptl_crystal_size_min          1.2
_refine_diff_density_max         .044
_refine_diff_density_min         -.040
_refine_ls_extinction_coef       .102(4)
_refine_ls_extinction_method     XD
_refine_ls_goodness_of_fit_obs   2.250
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         1236
_refine_ls_R_factor_obs          .0516
_refine_ls_shift/esd_max         .01
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/[σ²]
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         .0500
_reflns_number_observed          1236
_reflns_number_total             1597
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            sh0126.cif
_cod_data_source_block           neutron

loop_
_cod_changelog_entry_id
_cod_changelog_entry_author
_cod_changelog_entry_date
_cod_changelog_entry_text

1 'cif_fix_values 1891 2012-01-12 08:04:46Z andrius' 2013-11-21T15:54:49+02:00
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Gaussian' changed to
'gaussian' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius
;

2 'www-data' 2013-11-21T16:06:27+02:00
;
 Adding Fobs data.
;

3 'cif_fix_values 3008 2015-01-20 13:52:24Z robertas' 2015-01-23T14:30:19+02:00
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas
;

4 'cif_fix_values 3143 2015-03-26 13:38:13Z robertas' 2015-04-02T14:22:18+03:00
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w=1/[\s^2^]' 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^]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas
;

5 'Saulius Gra\<zulis' 2023-02-24T15:15:23+02:00
;Converting _cod_depositor_comments to the _cod_changelog_entry_... loop.
;

6 'Steef Boerrigter' 2023-02-22T10:07:00+02:00
;Corrected space group operators:
added a missing minus symbol
x,y-1/2,z+1/2 --> x,-y+1/2,z+1/2
;

_cod_original_cell_volume        803.4(6)
_cod_original_sg_symbol_H-M      'P 21/C'
_cod_database_code               2105676
_cod_database_fobs_code          2105676
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,-z
-x,y+1/2,-z+1/2
x,-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
O(1) .2431(4) .3084(5) -.04160(10) .013
O(2) .4920(4) .1328(5) .0635(2) .013
C(1) .1230(3) .7009(4) -.03650(10) .013
C(2) .2508(3) .4990(4) -.00230(10) .010
C(3) .3743(3) .5201(4) .06980(10) .010
C(4) .4923(3) .3278(4) .10070(10) .009
C(5) .6226(3) .3355(4) .17650(10) .009
C(6) .6231(3) .5268(4) .22450(10) .010
C(7) .7466(3) .5258(4) .29620(10) .011
C(8) .8688(3) .3375(4) .32000(10) .010
C(9) .8690(3) .1459(4) .27240(10) .011
C(10) .7455(3) .1444(4) .20120(10) .010
H(1A) .1043(11) .8211(14) .0030(4) .068
H(1B) -.0030(9) .6301(12) -.0694(4) .052
H(1C) .1719(9) .8054(13) -.0705(5) .078
H(3) .3782(7) .6871(10) .0992(3) .028
H(6) .5282(7) .6738(9) .2073(3) .025
H(7) .7453(7) .6751(9) .3328(3) .026
H(8) .9666(7) .3372(10) .3755(3) .024
H(9) .9658(7) -.0013(9) .2906(3) .027
H(10) .7436(7) -.0034(10) .1641(3) .027
H(X1) .3764(19) .177(3) .0027(8) .063
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
C(2) O(1) H(X1) 101.2(4) no
C(4) O(2) H(X1) 103.2(4) no
O(1) H(X1) O(2) 152.3(6) no
C(2) C(1) H(1A) 112.6(5) no
C(2) C(1) H(1B) 110.8(4) no
C(2) C(1) H(1C) 109.8(4) no
H(1A) C(1) H(1B) 108.7(7) no
H(1A) C(1) H(1C) 107.2(7) no
H(1B) C(1) H(1C) 107.7(7) no
O(1) C(2) C(1) 117.0(3) no
O(1) C(2) C(3) 122.1(3) no
C(1) C(2) C(3) 120.9(2) no
C(2) C(3) C(4) 119.7(2) no
C(2) C(3) H(3) 118.7(4) no
C(4) C(3) H(3) 121.5(4) no
O(2) C(4) C(3) 120.9(3) no
O(2) C(4) C(5) 116.4(3) no
C(3) C(4) C(5) 122.6(2) no
C(4) C(5) C(6) 121.5(2) no
C(4) C(5) C(10) 119.0(2) no
C(6) C(5) C(10) 119.5(3) no
C(5) C(6) C(7) 119.8(3) no
C(5) C(6) H(6) 120.9(4) no
C(7) C(6) H(6) 119.2(4) no
C(6) C(7) C(8) 120.4(3) no
C(6) C(7) H(7) 119.0(4) no
C(8) C(7) H(7) 120.6(4) no
C(7) C(8) C(9) 120.1(3) no
C(7) C(8) H(8) 120.7(4) no
C(9) C(8) H(8) 119.2(4) no
C(8) C(9) C(10) 119.9(3) no
C(8) C(9) H(9) 120.4(4) no
C(10) C(9) H(9) 119.7(4) no
C(5) C(10) C(9) 120.3(2) no
C(5) C(10) H(10) 119.1(4) no
C(9) C(10) H(10) 120.6(4) no
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_publ_flag
O(1) O(2) 2.502(4) no
C(2) O(1) 1.286(4) no
C(4) O(2) 1.293(4) no
O(1) H(X1) 1.329(11) no
O(2) H(X1) 1.245(11) no
C(1) C(2) 1.499(4) no
C(1) H(1A) 1.064(7) no
C(1) H(1B) 1.062(8) no
C(1) H(1C) 1.051(6) no
C(2) C(3) 1.414(4) no
C(3) C(4) 1.405(4) no
C(3) H(3) 1.076(6) no
C(4) C(5) 1.483(4) no
C(5) C(6) 1.406(3) no
C(5) C(10) 1.404(3) no
C(6) C(7) 1.402(4) no
C(7) C(8) 1.387(4) no
C(8) C(9) 1.404(4) no
C(9) C(10) 1.394(4) no
C(6) H(6) 1.079(6) no
C(7) H(7) 1.090(6) no
C(8) H(8) 1.091(7) no
C(9) H(9) 1.090(6) no
C(10) H(10) 1.085(6) no
