#------------------------------------------------------------------------------
#$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $
#$Revision: 14 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/2203335.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_2203335
loop_
_publ_author_name
'Kazuyuki Takahashi'
'Taka-aki Okamura'
'Hitoshi Yamamoto'
'Norikazu Ueyama'
_publ_section_title
;
(Z)-4-(tert-Butylamino)-4-oxo-2-butenoic acid
;
_journal_issue                 3
_journal_name_full             'Acta Crystallographica, Section E'
_journal_page_first            o448
_journal_page_last             o449
_journal_volume                60
_journal_year                  2004
_chemical_formula_moiety       'C8 H13 N O3 '
_chemical_formula_sum          'C8 H13 N O3'
_chemical_formula_weight       171.19
_chemical_melting_point        ?
_chemical_name_common          ?
_chemical_name_systematic
;
 ?
;
_symmetry_cell_setting         monoclinic
_symmetry_space_group_name_Hall '-P 2ybc'
_symmetry_space_group_name_H-M 'P 1 21/c 1'
_atom_sites_solution_hydrogens geom
_atom_sites_solution_primary   direct
_atom_sites_solution_secondary difmap
_cell_angle_alpha              90.00
_cell_angle_beta               105.42(3)
_cell_angle_gamma              90.00
_cell_formula_units_Z          4
_cell_length_a                 9.283(4)
_cell_length_b                 8.416(3)
_cell_length_c                 12.680(5)
_cell_measurement_reflns_used  25
_cell_measurement_temperature  296
_cell_measurement_theta_max    15.0
_cell_measurement_theta_min    14.3
_cell_volume                   955.0(7)
_computing_cell_refinement     'MSC/AFC Diffractometer Control Software'
_computing_data_collection
;MSC/AFC Diffractometer Control Software
(Molecular Structure Corporation, 1991)
;
_computing_data_reduction      'TEXSAN (Molecular Structure Corporation, 2000)'
_computing_molecular_graphics  'TEXSAN and MERCURY (Bruno et al., 2002)'
_computing_publication_material 'TEXSAN and MERCURY'
_computing_structure_refinement 'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution  'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature    296
_diffrn_detector_area_resol_mean ?
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type 'Rigaku AFC5R'
_diffrn_measurement_method     \w-2\q
_diffrn_radiation_monochromator graphite
_diffrn_radiation_source       'fine-focus sealed tube'
_diffrn_radiation_type         MoK\a
_diffrn_radiation_wavelength   0.71069
_diffrn_reflns_av_R_equivalents 0.0371
_diffrn_reflns_av_sigmaI/netI  0.0760
_diffrn_reflns_limit_h_max     12
_diffrn_reflns_limit_h_min     0
_diffrn_reflns_limit_k_max     10
_diffrn_reflns_limit_k_min     0
_diffrn_reflns_limit_l_max     15
_diffrn_reflns_limit_l_min     -16
_diffrn_reflns_number          2325
_diffrn_reflns_theta_full      27.51
_diffrn_reflns_theta_max       27.51
_diffrn_reflns_theta_min       2.94
_diffrn_standards_decay_%      0.39
_diffrn_standards_interval_count 150
_diffrn_standards_interval_time ?
_diffrn_standards_number       3
_exptl_absorpt_coefficient_mu  0.091
_exptl_absorpt_correction_T_max 0.962
_exptl_absorpt_correction_T_min 0.900
_exptl_absorpt_correction_type psi-scan
_exptl_absorpt_process_details '(North et al., 1968)'
_exptl_crystal_colour          colorless
_exptl_crystal_density_diffrn  1.191
_exptl_crystal_density_meas    ?
_exptl_crystal_density_method  'not measured'
_exptl_crystal_description     prismatic
_exptl_crystal_F_000           368
_exptl_crystal_size_max        0.500
_exptl_crystal_size_mid        0.200
_exptl_crystal_size_min        0.200
_refine_diff_density_max       0.140
_refine_diff_density_min       -0.188
_refine_ls_extinction_coef     ?
_refine_ls_extinction_method   none
_refine_ls_goodness_of_fit_ref 0.976
_refine_ls_hydrogen_treatment  mixed
_refine_ls_matrix_type         full
_refine_ls_number_parameters   112
_refine_ls_number_reflns       2195
_refine_ls_number_restraints   0
_refine_ls_restrained_S_all    0.976
_refine_ls_R_factor_all        0.1503
_refine_ls_R_factor_gt         0.0420
_refine_ls_shift/su_max        0.000
_refine_ls_shift/su_mean       0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0570P)^2^+0.0332P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme    calc
_refine_ls_wR_factor_gt        0.1035
_refine_ls_wR_factor_ref       0.1338
_reflns_number_gt              994
_reflns_number_total           2195
_reflns_threshold_expression   I>2\s(I)
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_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_type_symbol
O1 0.26132(17) 0.03658(18) 0.22821(11) 0.0540(4) Uani d . 1 . . O
O2 0.3781(2) -0.4179(2) 0.12000(13) 0.0689(5) Uani d . 1 . . O
O3 0.3148(2) -0.1660(2) 0.10417(12) 0.0650(5) Uani d . 1 . . O
H2 0.295(3) -0.077(3) 0.151(2) 0.078 Uiso d . 1 . . H
N1 0.2532(2) 0.05087(19) 0.40424(13) 0.0441(5) Uani d . 1 . . N
H1 0.2777 0.0037 0.4666 0.053 Uiso calc R 1 . . H
C1 0.3613(2) -0.2925(3) 0.16292(18) 0.0479(5) Uani d . 1 . . C
C2 0.3967(2) -0.2847(2) 0.28363(17) 0.0441(5) Uani d . 1 . . C
H3 0.4495 -0.3720 0.3191 0.053 Uiso calc R 1 . . H
C3 0.3668(2) -0.1756(2) 0.35054(16) 0.0439(5) Uani d . 1 . . C
H4 0.3978 -0.1997 0.4247 0.053 Uiso calc R 1 . . H
C4 0.2904(2) -0.0200(2) 0.32250(15) 0.0417(5) Uani d . 1 . . C
C5 0.1728(3) 0.2047(3) 0.39841(17) 0.0482(5) Uani d . 1 . . C
C6 0.0242(3) 0.1962(3) 0.3109(2) 0.0716(8) Uani d . 1 . . C
H5 0.0424 0.1794 0.2407 0.086 Uiso calc R 1 . . H
H6 -0.0292 0.2941 0.3100 0.086 Uiso calc R 1 . . H
H7 -0.0341 0.1099 0.3270 0.086 Uiso calc R 1 . . H
C7 0.2688(3) 0.3382(3) 0.3742(3) 0.0741(8) Uani d . 1 . . C
H8 0.2855 0.3218 0.3035 0.089 Uiso calc R 1 . . H
H9 0.3629 0.3395 0.4288 0.089 Uiso calc R 1 . . H
H10 0.2187 0.4378 0.3749 0.089 Uiso calc R 1 . . H
C8 0.1447(4) 0.2285(3) 0.5103(2) 0.0772(9) Uani d . 1 . . C
H11 0.0845 0.1428 0.5249 0.093 Uiso calc R 1 . . H
H12 0.0935 0.3274 0.5112 0.093 Uiso calc R 1 . . H
H13 0.2385 0.2304 0.5653 0.093 Uiso calc R 1 . . H
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 0.0732(11) 0.0492(9) 0.0398(8) 0.0125(8) 0.0154(7) 0.0095(7)
O2 0.0837(13) 0.0648(11) 0.0535(10) 0.0097(10) 0.0101(9) -0.0200(8)
O3 0.0910(14) 0.0671(11) 0.0407(8) 0.0185(10) 0.0245(9) 0.0045(8)
N1 0.0537(11) 0.0395(10) 0.0372(9) 0.0057(9) 0.0088(8) 0.0034(8)
C1 0.0432(13) 0.0554(14) 0.0445(12) -0.0014(12) 0.0109(10) -0.0061(11)
C2 0.0473(13) 0.0399(11) 0.0432(11) 0.0034(10) 0.0089(10) -0.0001(10)
C3 0.0516(13) 0.0422(11) 0.0344(10) 0.0018(10) 0.0050(9) 0.0033(9)
C4 0.0469(13) 0.0392(11) 0.0380(10) -0.0027(10) 0.0097(9) -0.0003(10)
C5 0.0527(14) 0.0428(12) 0.0478(12) 0.0069(11) 0.0113(10) -0.0008(10)
C6 0.0573(16) 0.0741(18) 0.0774(17) 0.0151(15) 0.0077(13) -0.0069(15)
C7 0.0736(18) 0.0433(14) 0.103(2) 0.0041(13) 0.0201(16) 0.0027(14)
C8 0.100(2) 0.0702(17) 0.0649(17) 0.0205(17) 0.0280(16) -0.0094(14)
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
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
C4 O1 H2 . . 111.3(10) no
C1 O3 H2 . . 110.9(14) no
C4 N1 C5 . . 126.00(17) no
C4 N1 H1 . . 117.0 ?
C5 N1 H1 . . 117.0 ?
O2 C1 O3 . . 121.0(2) no
O2 C1 C2 . . 118.8(2) no
O3 C1 C2 . . 120.2(2) no
C3 C2 C1 . . 131.6(2) yes
C3 C2 H3 . . 114.2 ?
C1 C2 H3 . . 114.2 ?
C2 C3 C4 . . 128.58(19) yes
C2 C3 H4 . . 115.7 ?
C4 C3 H4 . . 115.7 ?
O1 C4 N1 . . 123.03(19) no
O1 C4 C3 . . 122.21(18) no
N1 C4 C3 . . 114.74(17) no
N1 C5 C7 . . 109.96(18) ?
N1 C5 C8 . . 106.05(18) ?
C7 C5 C8 . . 110.3(2) ?
N1 C5 C6 . . 109.91(18) ?
C7 C5 C6 . . 110.7(2) ?
C8 C5 C6 . . 109.8(2) ?
C5 C6 H5 . . 109.5 ?
C5 C6 H6 . . 109.5 ?
H5 C6 H6 . . 109.5 ?
C5 C6 H7 . . 109.5 ?
H5 C6 H7 . . 109.5 ?
H6 C6 H7 . . 109.5 ?
C5 C7 H8 . . 109.5 ?
C5 C7 H9 . . 109.5 ?
H8 C7 H9 . . 109.5 ?
C5 C7 H10 . . 109.5 ?
H8 C7 H10 . . 109.5 ?
H9 C7 H10 . . 109.5 ?
C5 C8 H11 . . 109.5 ?
C5 C8 H12 . . 109.5 ?
H11 C8 H12 . . 109.5 ?
C5 C8 H13 . . 109.5 ?
H11 C8 H13 . . 109.5 ?
H12 C8 H13 . . 109.5 ?
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
O1 C4 . 1.248(2) yes
O2 C1 . 1.216(3) yes
O3 C1 . 1.305(3) yes
O3 H2 . 1.01(3) no
N1 C4 . 1.319(2) yes
N1 C5 . 1.486(3) yes
N1 H1 . 0.8600 ?
C1 C2 . 1.479(3) ?
C2 C3 . 1.329(3) yes
C2 H3 . 0.9300 ?
C3 C4 . 1.486(3) ?
C3 H4 . 0.9300 ?
C5 C7 . 1.515(3) ?
C5 C8 . 1.522(3) ?
C5 C6 . 1.524(3) ?
C6 H5 . 0.9600 ?
C6 H6 . 0.9600 ?
C6 H7 . 0.9600 ?
C7 H8 . 0.9600 ?
C7 H9 . 0.9600 ?
C7 H10 . 0.9600 ?
C8 H11 . 0.9600 ?
C8 H12 . 0.9600 ?
C8 H13 . 0.9600 ?
loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_site_symmetry_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
N1 H1 O2 4_556 0.86 2.05 2.897(3) 168
O3 H2 O1 . 1.01(3) 1.46(3) 2.458(2) 172(2)
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion
_geom_torsion_publ_flag
O2 C1 C2 C3 . . . . -167.3(2) yes
O3 C1 C2 C3 . . . . 13.6(4) yes
C1 C2 C3 C4 . . . . -2.5(4) yes
C5 N1 C4 O1 . . . . 0.1(3) ?
C5 N1 C4 C3 . . . . -178.40(18) yes
C2 C3 C4 O1 . . . . -9.9(4) ?
C2 C3 C4 N1 . . . . 168.7(2) ?
C4 N1 C5 C7 . . . . -65.5(3) ?
C4 N1 C5 C8 . . . . 175.3(2) ?
C4 N1 C5 C6 . . . . 56.7(3) ?