#------------------------------------------------------------------------------
#$Date: 2010-01-30 13:59:17 +0000 (Sat, 30 Jan 2010) $
#$Revision: 966 $
#$URL: svn://www.crystallography.net/cod/cif/2/2101467.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_2101467
loop_
_publ_author_name
'Hirano, A.'
'Kubozono, Y.'
'Maeda, H.'
'Ishida, H.'
'Kashino, S.'
_publ_section_title
;
 Structure of ammonium hydrogen succinate above and below the phase
 transition around 170K
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              323
_journal_page_last               327
_journal_volume                  52
_journal_year                    1996
_chemical_formula_sum            'C4 H9 N O4'
_[local]_cod_chemical_formula_sum_orig 'C4 H9 N1 O4'
_chemical_formula_weight         135.119
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_type_scat_source
;Cromer & Waber (1974) for non-H atoms and
Stewart, Davidson & Simpson (1992) for H atoms
;
_cell_angle_alpha                91.480(10)
_cell_angle_beta                 93.178(9)
_cell_angle_gamma                100.850(6)
_cell_formula_units_Z            2
_cell_length_a                   7.4384(6)
_cell_length_b                   8.8222(7)
_cell_length_c                   4.6875(6)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    150
_cell_measurement_theta_max      11.5
_cell_measurement_theta_min      10
_cell_volume                     301.44(5)
_diffrn_measurement_device       'Rigaku AFC-5R'
_diffrn_measurement_method       \w-2\q
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.037
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_theta_max         32.5
_diffrn_standards_decay_%        2
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.488
_exptl_crystal_description       prism
_exptl_crystal_F_000             144
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.3
_refine_diff_density_min         -0.3
_refine_ls_extinction_coef       'g = 4.63E-6'
_refine_ls_extinction_method     'I~corr~ = I~o~(1 + gI~c~)'
_refine_ls_goodness_of_fit_obs   1.25
_refine_ls_hydrogen_treatment    refall
_refine_ls_number_parameters     123
_refine_ls_number_reflns         1522
_refine_ls_R_factor_obs          0.038
_refine_ls_shift/esd_max         0.49
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      'w = 1/\s^2^(F~o~)'
_refine_ls_wR_factor_obs         0.043
_reflns_number_observed          1522
_reflns_observed_criterion       I~o~>3.0\s(I)
_[local]_cod_data_source_file    as0697.cif
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O(1) .30360(10) .03150(10) .2486(2)
O(2) .03260(10) .10080(10) .1957(2)
O(3) .41320(10) .41620(10) .1702(2)
O(4) .27340(10) .61330(10) .2546(2)
N(1) .3274(2) .80860(10) -.2264(3)
C(1) .1939(2) .11250(10) .3192(3)
C(2) .2392(2) .22910(10) .5658(3)
C(3) .1851(2) .38360(10) .5086(3)
C(4) .2974(2) .48020(10) .2977(3)
H(1) .012(6) .030(5) .061(9)
H(2) .365(2) .242(2) .621(4)
H(3) .171(2) .184(2) .722(4)
H(4) .053(3) .368(2) .443(4)
H(5) .192(2) .448(2) .692(4)
H(6) .466(5) .480(5) .050(10)
H(7) .295(3) .748(3) -.393(6)
H(8) .245(4) .867(3) -.202(5)
H(9) .437(3) .864(2) -.231(4)
H(10) .327(2) .740(2) -.075(4)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
C(1) C(2) 1.5080(10)
C(2) C(3) 1.5180(10)
C(3) C(4) 1.5060(10)
C(1) O(1) 1.2340(10)
C(1) O(2) 1.2880(10)
C(4) O(3) 1.2810(10)
C(4) O(4) 1.2400(10)
O(2) H(1) 0.86(4)
O(3) H(6) 0.86(5)
C(2) H(2) 0.94(2)
C(2) H(3) 0.97(2)
C(3) H(4) 1.00(2)
C(3) H(5) 1.01(2)
N(1) H(7) 0.93(3)
N(1) H(8) 0.88(3)
N(1) H(9) 0.87(2)
N(1) H(10) 0.94(2)
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
O(1) C(1) O(2) 123.00(10)
O(1) C(1) C(2) 121.50(10)
O(2) C(1) C(2) 115.40(10)
O(3) C(4) O(4) 123.90(10)
O(3) C(4) C(3) 116.20(10)
O(4) C(4) C(3) 119.80(10)
C(1) C(2) C(3) 114.40(10)
C(2) C(3) C(4) 115.10(10)
C(1) O(2) H(1) 112(3)
C(4) O(3) H(6) 108(3)
H(7) N(1) H(8) 109(2)
H(7) N(1) H(9) 111(2)
H(7) N(1) H(10) 107(2)
H(8) N(1) H(9) 112(2)
H(8) N(1) H(10) 110(2)
H(9) N(1) H(10) 109(2)
_cod_database_code 2101467