#------------------------------------------------------------------------------
#$Date: 2011-09-10 04:16:28 +0100 (Sat, 10 Sep 2011) $
#$Revision: 25271 $
#$URL: svn://www.crystallography.net/cod/cif/2/2103734.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_2103734
loop_
_publ_author_name
'Tedesco, Consiglia'
'Dinnebier, Robert E.'
'Olbrich, Falk'
'van Smaalen, Sander'
_publ_section_title
;
 Disordered crystal structure of pentamethylcyclopentadienylsodium as
 seen by high-resolution X-ray powder diffraction
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              673
_journal_page_last               679
_journal_volume                  57
_journal_year                    2001
_chemical_formula_sum            'C10 H15 Na'
_chemical_formula_weight         158.22
_chemical_name_systematic        ' pentamethylcyclopentadienylsodium'
_space_group_IT_number           63
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-C 2c 2'
_symmetry_space_group_name_H-M   'C m c m'
_cell_angle_alpha                90.0
_cell_angle_beta                 90.0
_cell_angle_gamma                90.0
_cell_formula_units_Z            4
_cell_length_a                   4.61030(3)
_cell_length_b                   16.4621(3)
_cell_length_c                   14.6751(2)
_cell_measurement_temperature    298
_cell_volume                     1113.77(3)
_computing_cell_refinement       GSAS
_computing_structure_refinement  GSAS
_diffrn_ambient_temperature      295
_diffrn_radiation_monochromator  'Si 111'
_diffrn_radiation_wavelength     .491213(2)
_refine_ls_goodness_of_fit_all   .41
_refine_ls_matrix_type           full
_refine_ls_number_parameters     9
_[local]_cod_data_source_file    na0125.cif
_[local]_cod_data_source_block   I
_[local]_cod_cif_authors_sg_H-M  Cmcm
_[local]_cod_chemical_formula_sum_orig 'Na C10 H15'
_cod_original_cell_volume        1113.77(4)
_cod_database_code               2103734
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 +x,+y,+z
2 -x,+y,+z
3 +x,-y,+z+1/2
4 -x,-y,+z+1/2
5 -x,-y,-z
6 +x,-y,-z
7 -x,+y,-z+1/2
8 +x,+y,-z+1/2
9 +x+1/2,+y+1/2,+z
10 -x+1/2,+y+1/2,+z
11 +x+1/2,-y+1/2,+z+1/2
12 -x+1/2,-y+1/2,+z+1/2
13 -x+1/2,-y+1/2,-z
14 +x+1/2,-y+1/2,-z
15 -x+1/2,+y+1/2,-z+1/2
16 +x+1/2,+y+1/2,-z+1/2
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
NA1 .0184(19) .0 .0 .168(4) .114(4) .0
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_occupancy
NA1 .5 .1422(2) .25 .10021 Uani 1.0
C1 .0 .07422(10) .23026(12) .0428(12) Uiso .5
C2 .0 .10664(14) .31979(7) .0428(12) Uiso .5
C3 .0 .19256(14) .31287(8) .0428(12) Uiso .5
C4 .0 .21325(11) .21907(12) .0428(12) Uiso .5
C5 .0 .14011(15) .168011(9) .0428(12) Uiso .5
C6 .0 -.01446(12) .2057(3) .1775(16) Uiso .75
C7 .0 .0584(2) .40680(15) .1775(16) Uiso .75
C8 .0 .2514(2) .39126(18) .1775(16) Uiso .75
C9 .0 .29789(14) .1805(3) .1775(16) Uiso .75
C10 .0 .1336(3) .06579(2) .1775(16) Uiso .75
loop_
_atom_type_symbol
_atom_type_description
Na sodium
C carbon
H hydorgen