#------------------------------------------------------------------------------
#$Date: 2017-10-14 22:27:35 +0300 (Sat, 14 Oct 2017) $
#$Revision: 202017 $
#$URL: file:///home/coder/svn-repositories/cod/cif/7/05/13/7051322.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_7051322
loop_
_publ_author_name
'Wilson, Chick C.'
'Nowell, Harriott'
_publ_section_title
;
 Methyl group librations in sterically hindered dimethylnaphthalene
 molecules: neutron diffraction studies of 1,8-dimethylnaphthalene
 between 50 and 200 K
;
_journal_issue                   12
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1063
_journal_paper_doi               10.1039/b004123h
_journal_volume                  24
_journal_year                    2000
_chemical_formula_sum            'C12 H12'
_chemical_formula_weight         156.2
_chemical_name_common            1,8-dimethylnaphthalene
_chemical_name_systematic
;
1,8-dimethylnaphthalene                                                         
;
_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                90.00
_cell_angle_beta                 124.40(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.725(2)
_cell_length_b                   6.938(2)
_cell_length_c                   16.147(4)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    150(1)
_cell_volume                     898.9(4)
_computing_molecular_graphics    ' ORTEP (Johnson, 1994)'
_computing_structure_refinement  ' SHELXL-93 (Sheldrick, 1993)'
_diffrn_ambient_temperature      150(1)
_diffrn_measurement_device       SXD
_diffrn_measurement_method       ' time-of-flight LAUE diffraction'
_diffrn_radiation_monochromator  none
_diffrn_radiation_probe          neutron
_diffrn_radiation_source         ' ISIS spallation source'
_diffrn_radiation_type           neutron
_diffrn_radiation_wavelength     0.5-5.0
_diffrn_reflns_av_R_equivalents  0.077
_diffrn_reflns_av_sigmaI/netI    0.0553
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            1947
_exptl_absorpt_coefficient_mu    ' 2.080, at 1 Angstrom'
_exptl_absorpt_correction_T_max  0.84
_exptl_absorpt_correction_T_min  0.41
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
The linear absorption coefficient is wavelength dependent
 and it is calculated as: 
          mu = 1.08 + 1.00 * lambda  [cm^-1]
;
_exptl_crystal_colour            'pale yellow   '
_exptl_crystal_density_diffrn    1.153
_exptl_crystal_density_method    ' not measured'
_exptl_crystal_description       'thick plate'
_exptl_crystal_F_000             13.97
_exptl_crystal_size_max          2.5
_exptl_crystal_size_mid          2.5
_exptl_crystal_size_min          1.0
_refine_diff_density_max         0.096
_refine_diff_density_min         -0.093
_refine_diff_density_rms         0.023
_refine_ls_extinction_coef       0.130
_refine_ls_extinction_method     ' Becker-Coppens Lorentzian model'
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         751
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0736
_refine_ls_R_factor_gt           0.0736
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[σ²(Fo²)+(0.1644P)²+0.0842P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1793
_refine_ls_wR_factor_ref         0.1793
_reflns_number_gt                751
_reflns_number_total             751
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b004123h.txt
_cod_data_source_block           18dmn150K
_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:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.1644P)^2^+0.0842P] 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^)+(0.1644P)^2^+0.0842P] 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      P21/c
_cod_database_code               7051322
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'
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_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
C1 C 0.2483(6) -0.0622(8) 0.4612(4) 0.0229(13) Uani 1 d . . .
C2 C 0.1661(7) 0.0597(10) 0.4878(6) 0.0341(17) Uani 1 d . . .
C3 C 0.0892(7) 0.2286(11) 0.4367(6) 0.0369(18) Uani 1 d . . .
C4 C 0.0953(7) 0.2824(10) 0.3572(6) 0.0338(16) Uani 1 d . . .
C10 C 0.1822(7) 0.1670(7) 0.3277(5) 0.0236(13) Uani 1 d . . .
C9 C 0.2607(6) -0.0106(8) 0.3802(4) 0.0175(12) Uani 1 d . . .
C8 C 0.3429(6) -0.1224(8) 0.3437(5) 0.0243(13) Uani 1 d . . .
C7 C 0.3447(8) -0.0507(10) 0.2647(6) 0.0359(16) Uani 1 d . . .
C6 C 0.2689(9) 0.1206(12) 0.2153(6) 0.046(2) Uani 1 d . . .
C5 C 0.1866(8) 0.2307(11) 0.2457(6) 0.0391(19) Uani 1 d . . .
C11 C 0.3230(10) -0.2458(11) 0.5251(8) 0.0400(18) Uani 1 d . . .
C12 C 0.4290(9) -0.3127(10) 0.3872(7) 0.039(2) Uani 1 d . . .
H2 H 0.157(2) 0.013(2) 0.5491(14) 0.064(5) Uani 1 d . . .
H3 H 0.018(2) 0.315(2) 0.4579(16) 0.069(5) Uani 1 d . . .
H4 H 0.0373(16) 0.416(2) 0.3164(13) 0.061(5) Uani 1 d . . .
H5 H 0.1256(17) 0.364(2) 0.2103(13) 0.061(4) Uani 1 d . . .
H6 H 0.277(3) 0.171(3) 0.1554(16) 0.088(7) Uani 1 d . . .
H7 H 0.406(2) -0.135(3) 0.2370(12) 0.064(5) Uani 1 d . . .
H111 H 0.455(2) -0.253(3) 0.5623(18) 0.078(7) Uani 1 d . . .
H112 H 0.269(2) -0.371(2) 0.4802(16) 0.067(5) Uani 1 d . . .
H113 H 0.295(3) -0.246(3) 0.5813(18) 0.087(7) Uani 1 d . . .
H121 H 0.5320(19) -0.298(2) 0.4633(15) 0.059(4) Uani 1 d . . .
H122 H 0.3455(19) -0.4230(19) 0.3825(14) 0.059(4) Uani 1 d . . .
H123 H 0.475(2) -0.372(3) 0.3474(16) 0.075(5) Uani 1 d . . .
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_length_neutron
_atom_type_scat_source
C C 6.646 'International Tables Vol C Table 4.4.4.1'
H H -3.739 'International Tables Vol C Table 4.4.4.1'
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
C2 C1 C9 119.6(5) . . ?
C2 C1 C11 115.7(6) . . ?
C9 C1 C11 124.8(5) . . ?
C3 C2 C1 122.9(7) . . ?
C3 C2 H2 120.2(10) . . ?
C1 C2 H2 116.9(10) . . ?
C4 C3 C2 119.7(6) . . ?
C4 C3 H3 120.6(13) . . ?
C2 C3 H3 119.6(12) . . ?
C3 C4 C10 120.5(6) . . ?
C3 C4 H4 121.1(10) . . ?
C10 C4 H4 118.4(11) . . ?
C5 C10 C4 118.2(6) . . ?
C5 C10 C9 122.0(5) . . ?
C4 C10 C9 119.9(6) . . ?
C1 C9 C10 117.5(5) . . ?
C1 C9 C8 126.0(5) . . ?
C10 C9 C8 116.5(5) . . ?
C7 C8 C9 118.6(5) . . ?
C7 C8 C12 116.9(6) . . ?
C9 C8 C12 124.5(6) . . ?
C8 C7 C6 124.1(6) . . ?
C8 C7 H7 118.7(11) . . ?
C6 C7 H7 117.2(11) . . ?
C5 C6 C7 119.6(6) . . ?
C5 C6 H6 119.5(13) . . ?
C7 C6 H6 120.8(12) . . ?
C6 C5 C10 119.2(6) . . ?
C6 C5 H5 122.9(11) . . ?
C10 C5 H5 117.9(11) . . ?
C1 C11 H111 112.1(11) . . ?
C1 C11 H112 110.8(13) . . ?
H111 C11 H112 108.6(16) . . ?
C1 C11 H113 108.3(11) . . ?
H111 C11 H113 108.7(19) . . ?
H112 C11 H113 108.2(18) . . ?
C8 C12 H121 111.5(10) . . ?
C8 C12 H122 112.8(10) . . ?
H121 C12 H122 109.1(15) . . ?
C8 C12 H123 111.9(13) . . ?
H121 C12 H123 107.1(14) . . ?
H122 C12 H123 103.9(15) . . ?
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
C1 C2 1.388(8) . ?
C1 C9 1.426(8) . ?
C1 C11 1.539(10) . ?
C2 C3 1.384(10) . ?
C2 H2 1.089(18) . ?
C3 C4 1.370(11) . ?
C3 H3 1.107(15) . ?
C4 C10 1.428(8) . ?
C4 H4 1.089(18) . ?
C10 C5 1.418(9) . ?
C10 C9 1.445(7) . ?
C9 C8 1.456(8) . ?
C8 C7 1.379(9) . ?
C8 C12 1.508(10) . ?
C7 C6 1.388(11) . ?
C7 H7 1.100(16) . ?
C6 C5 1.383(11) . ?
C6 H6 1.076(16) . ?
C5 H5 1.075(18) . ?
C11 H111 1.07(2) . ?
C11 H112 1.06(2) . ?
C11 H113 1.08(2) . ?
C12 H121 1.06(2) . ?
C12 H122 1.086(17) . ?
C12 H123 1.05(2) . ?
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 ChemSpider 10813
