#------------------------------------------------------------------------------
#$Date: 2016-02-19 15:29:56 +0100 (vie 19 de feb de 2016) $
#$Revision: 176759 $
#$URL: svn://www.crystallography.net/cod/cif/2/00/57/2005766.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_2005766
loop_
_publ_author_name
'A. J. Dobson'
'R. E. Gerkin'
_publ_section_title
;
 sym-Hexahydropyrene
;
_journal_coeditor_code           FG1217
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              3086
_journal_page_last               3088
_journal_paper_doi               10.1107/S0108270196010013
_journal_volume                  52
_journal_year                    1996
_chemical_formula_moiety         'C16 H16'
_chemical_formula_sum            'C16 H16'
_chemical_formula_weight         208.30
_chemical_name_common            sym-Hexahydropyrene
_chemical_name_systematic        ' ?'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 93.03(1)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   4.8366(7)
_cell_length_b                   12.5390(9)
_cell_length_c                   9.3207(9)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296
_cell_measurement_theta_max      17.4
_cell_measurement_theta_min      12.4
_cell_volume                     564.47(11)
_computing_cell_refinement       'MSC/AFC Diffractometer Control Software'
_computing_data_collection
;MSC/AFC Diffractometer Control Software (Molecular Structure Corporation,
 1988)
;
_computing_data_reduction
'TEXSAN (Molecular Structure Corporation, 1989)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  TEXSAN
_computing_structure_refinement  TEXSAN
_computing_structure_solution    'SHELXS86 (Sheldrick, 1985)'
_diffrn_ambient_temperature      296
_diffrn_measurement_device       AFC5S
_diffrn_measurement_method       'ω-2θ scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.028
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3048
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.00
_diffrn_standards_interval_count 150
_diffrn_standards_number         6
_exptl_absorpt_coefficient_mu    0.064
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.225
_exptl_crystal_density_meas      ?
_exptl_crystal_description       'cut column'
_exptl_crystal_F_000             224
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.18
_refine_diff_density_min         -0.18
_refine_ls_extinction_coef       '1.0(2) \\times 10^-5^'
_refine_ls_extinction_method     'Zachariasen (1963,1968)'
_refine_ls_goodness_of_fit_obs   2.04
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     107
_refine_ls_number_reflns         946
_refine_ls_R_factor_obs          0.035
_refine_ls_shift/esd_max         '< 0.01'
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/σF²'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.047
_reflns_number_observed          946
_reflns_number_total             1370
_reflns_observed_criterion       'I >3.0\s~I~'
_cod_data_source_file            fg1217.cif
_cod_data_source_block           sym-hexahydropyrene
_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.

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.

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

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' 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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'w = 1/\s~F~^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~F~^2^'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        564.50(10)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2005766
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
'-x, 1/2 +y, 1/2 -z'
'-x, -y, -z'
'x, 1/2 -y, 1/2 + 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
C1 0.0483(9) 0.0484(8) 0.0423(8) -0.0042(7) 0.0128(7) 0.0068(6)
C2 0.0547(9) 0.0554(9) 0.0363(7) -0.0004(7) 0.0126(7) -0.0016(6)
C3 0.0395(8) 0.0437(8) 0.0416(7) 0.0038(6) 0.0070(6) -0.0048(6)
C4 0.0427(7) 0.0311(7) 0.0468(8) 0.0036(6) 0.0019(6) 0.0008(5)
C5 0.0432(8) 0.0352(7) 0.0446(7) -0.0034(6) 0.0053(6) 0.0084(5)
C6 0.0311(6) 0.0359(7) 0.0338(6) 0.0014(5) 0.0001(5) -0.0010(5)
C7 0.0284(6) 0.0331(6) 0.0315(6) -0.0009(5) 0.0000(5) 0.0017(5)
C8 0.0325(6) 0.0370(6) 0.0343(7) -0.0046(5) 0.0024(5) 0.0044(5)
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
C1 0.1328(3) 0.4354(1) 0.7601(2) 0.0460(4) Uij
C2 0.1655(3) 0.5462(1) 0.8248(2) 0.0484(4) Uij
C3 0.1234(3) 0.6296(1) 0.7075(1) 0.0414(4) Uij
C4 0.4135(3) 0.69699(10) 0.5110(2) 0.0402(4) Uij
C5 0.5903(3) 0.68110(10) 0.3981(2) 0.0409(4) Uij
C6 0.3201(3) 0.61337(9) 0.5895(1) 0.0337(3) Uij
C7 0.4093(2) 0.50800(9) 0.5571(1) 0.0311(3) Uij
C8 0.3212(3) 0.41842(10) 0.6379(1) 0.0346(3) Uij
H1A -0.064(3) 0.425(1) 0.720(2) 0.054(4) Uij
H1B 0.173(3) 0.380(1) 0.834(2) 0.056(4) Uij
H2A 0.036(4) 0.557(1) 0.898(2) 0.059(4) Uij
H2B 0.360(4) 0.554(1) 0.875(2) 0.060(4) Uij
H3A -0.072(3) 0.622(1) 0.664(1) 0.053(4) Uij
H3B 0.150(3) 0.703(1) 0.744(1) 0.045(4) Uij
H4 0.358(3) 0.770(1) 0.534(1) 0.045(4) Uij
H5 0.649(3) 0.742(1) 0.344(2) 0.050(4) Uij
loop_
_atom_type_symbol
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
H 0 0 'Stewart, Davidson and Simpson (1965)'
C .002 .002 'Cromer and Waber (1974)'
loop_
_diffrn_standard_refln_index_h
_diffrn_standard_refln_index_k
_diffrn_standard_refln_index_l
3 0 -2
2 1 3
2 0 2
1 1 1
1 0 2
0 1 1
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
C2 C1 C8 ? ? 111.90(10) yes
C1 C2 C3 ? ? 109.70(10) yes
C2 C3 C6 ? ? 111.50(10) yes
C5 C4 C6 ? ? 121.50(10) yes
C4 C5 C8 ? 3_666 121.60(10) yes
C3 C6 C4 ? ? 121.70(10) yes
C3 C6 C7 ? ? 119.30(10) yes
C4 C6 C7 ? ? 118.90(10) yes
C6 C7 C7 ? 3_666 119.50(10) yes
C6 C7 C8 ? ? 120.90(10) yes
C7 C7 C8 3_666 ? 119.60(10) yes
C1 C8 C5 ? 3_666 121.50(10) yes
C1 C8 C7 ? ? 119.70(10) yes
H1A C1 H1B ? ? 108.0(10) no
H2A C2 H2B ? ? 106.0(10) no
H3A C3 H3B ? ? 109.0(10) no
C8 C1 H1A ? ? 107.4(8) no
C8 C1 H1B ? ? 108.7(9) no
C1 C2 H2A ? ? 110.4(9) no
C1 C2 H2B ? ? 110.2(9) no
C2 C3 H3A ? ? 108.4(8) no
C2 C3 H3B ? ? 112.7(8) no
C5 C4 H4 ? ? 118.7(8) no
C6 C4 H4 ? ? 119.8(8) no
C4 C5 H5 ? ? 119.1(9) no
C8 C5 H5 3_666 ? 119.3(9) no
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
C1 C2 ? 1.520(2) yes
C1 C8 ? 1.510(2) yes
C2 C3 ? 1.519(2) yes
C3 C6 ? 1.505(2) yes
C4 C5 ? 1.405(2) yes
C4 C6 ? 1.369(2) yes
C5 C8 3_666 1.367(2) yes
C6 C7 ? 1.427(2) yes
C7 C7 3_666 1.429(2) yes
C7 C8 ? 1.430(2) yes
C1 H1A ? 1.01(2) no
C1 H1B ? 0.980(10) no
C2 H2A ? 0.96(2) no
C2 H2B ? 1.03(2) no
C3 H3A ? 1.01(2) no
C3 H3B ? 0.990(10) no
C4 H4 ? 0.980(10) no
C5 H5 ? 0.970(10) no
