#------------------------------------------------------------------------------
#$Date: 2011-03-31 12:48:06 +0100 (Thu, 31 Mar 2011) $
#$Revision: 17004 $
#$URL: svn://www.crystallography.net/cod/cif/2/2006947.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_2006947
loop_
_publ_author_name
'Hosomi, Hiroyuki'
'Ito, Yoshikatsu'
'Ohba, Shigeru'
_publ_section_title
;
Ammonium and Isopropylammonium Salts of the Fumaric Acid Dianion
;
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              142
_journal_page_last               145
_journal_volume                  54
_journal_year                    1998
_chemical_formula_iupac          '[N H4]2 1+ , (C4 H2 O4) 2-'
_chemical_formula_moiety         '(N H4 1+)2, (C4 H2 O4 2-)'
_chemical_formula_sum            'C4 H10 N2 O4'
_chemical_formula_weight         150.13
_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                90.00000
_cell_angle_beta                 92.46(3)
_cell_angle_gamma                90.00000
_cell_formula_units_Z            2
_cell_length_a                   3.733(3)
_cell_length_b                   8.009(2)
_cell_length_c                   11.508(2)
_cell_measurement_temperature    298
_cell_volume                     343.7(3)
_exptl_crystal_density_diffrn    1.451
_refine_ls_R_factor_obs          .040
_refine_ls_wR_factor_obs         .048
_[local]_cod_cif_authors_sg_H-M  'P 21/c'
_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:

'_atom_site_thermal_displace_type' tag value 'Uij' was replaced with
'Uani' value 5 times.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               2006947
loop_
_symmetry_equiv_pos_as_xyz
+X,+Y,+Z
-X,-Y,-Z
-X,+Y+0.5,-Z+0.5
+X,-Y+0.5,+Z+0.5
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
O1 .0479(2) .02180(10) .02380(10) -.00040(10) .01430(10) -.00090(10)
O2 .0447(2) .01850(10) .02530(10) -.00620(10) .01040(10) .00200(10)
N3 .0304(2) .02430(10) .02360(10) -.00130(10) .00710(10) -.00240(10)
C4 .02410(10) .01710(10) .02190(10) -.00080(10) .00430(10) .00050(10)
C5 .0308(2) .01620(10) .0254(2) -.00220(10) .00670(10) .00170(10)
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
O1 .11270(7) .26340(3) .30750(2) .03120(10) Uani 1.000
O2 -.07190(7) .18730(3) .48060(2) .02950(10) Uani 1.000
N3 .50400(8) -.04600(4) .34760(3) .02620(10) Uani 1.000
C4 .02290(8) .29600(4) .40990(3) .02100(10) Uani 1.000
C5 .03340(9) .47490(4) .44720(3) .02410(10) Uani 1.000
H3A .6690(10) .0063(6) .3983(4) .0580(10) Uiso 1.000
H3B .619(2) -.1084(7) .2874(4) .0440(10) Uiso 1.000
H3C .373(2) -.1101(7) .3912(5) .043(2) Uiso 1.000
H3D .3640(10) .0398(6) .3140(4) .0500(10) Uiso 1.000
H5 .0870(10) .5496(6) .3928(4) .0440(10) Uiso 1.000
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_1
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
O1 C4 . . 1.2660(10) yes
O2 C4 . . 1.2530(10) yes
C4 C5 . . 1.4960(10) yes
C5 C5 . 2_566 1.3140(10) yes
N3 H3A . . .931(5) no
N3 H3B . . .970(6) no
N3 H3C . . .881(6) no
N3 H3D . . .936(5) no
C5 H5 . . .895(6) no