#------------------------------------------------------------------------------
#$Date: 2012-09-06 16:54:02 +0300 (Thu, 06 Sep 2012) $
#$Revision: 65853 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/10/51/2105155.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_2105155
loop_
_publ_author_name
'Tumanov, Nikolay A.'
'Boldyreva, Elena V.'
_publ_section_title
;
X-ray diffraction and Raman study of DL-alanine at high
pressure: revision of phase transitions
;
_journal_coeditor_code GP5051
_journal_issue 4
_journal_name_full 'Acta Crystallographica Section B'
_journal_page_first 412
_journal_page_last 423
_journal_volume 68
_journal_year 2012
_chemical_formula_moiety 'C3 H7 N O2'
_chemical_formula_sum 'C3 H7 N O2'
_chemical_formula_weight 89.10
_chemical_name_common DL-alanine
_chemical_name_systematic 'DL-2-Aminopropionic Acid '
_space_group_IT_number 33
_symmetry_cell_setting orthorhombic
_symmetry_space_group_name_Hall 'P 2c -2n'
_symmetry_space_group_name_H-M 'P n a 21'
_atom_sites_solution_hydrogens geom
_atom_sites_solution_primary direct
_atom_sites_solution_secondary difmap
_audit_creation_method SHELXL-97
_cell_angle_alpha 90.00
_cell_angle_beta 90.00
_cell_angle_gamma 90.00
_cell_formula_units_Z 4
_cell_length_a 11.452(3)
_cell_length_b 5.516(3)
_cell_length_c 5.6060(7)
_cell_measurement_reflns_used 1267
_cell_measurement_temperature 293(2)
_cell_measurement_theta_max 30.9249
_cell_measurement_theta_min 3.6271
_cell_volume 354.1(2)
_computing_cell_refinement 'CrysAlis Pro (Oxford Diffraction Ltd, 2010)'
_computing_data_collection 'CrysAlis Pro (Oxford Diffraction Ltd, 2010)'
_computing_data_reduction 'CrysAlis Pro (Oxford Diffraction Ltd, 2010)'
_computing_molecular_graphics 'Mercury (Macrae et al., 2008)'
_computing_publication_material
;
Mercury (Macrae et al., 2008),
PLATON (Spek, 2009),
enCIFer (Allen et al., 2004)
;
_computing_structure_refinement 'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution 'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature 293(2)
_diffrn_detector_area_resol_mean 10.3457
_diffrn_measured_fraction_theta_full 0.463
_diffrn_measured_fraction_theta_max 0.463
_diffrn_measurement_device_type 'Oxford Diffraction Gemini Ultra R'
_diffrn_measurement_method \w
_diffrn_radiation_monochromator graphite
_diffrn_radiation_type MoK\a
_diffrn_radiation_wavelength 0.71073
_diffrn_reflns_av_R_equivalents 0.0716
_diffrn_reflns_av_sigmaI/netI 0.0608
_diffrn_reflns_limit_h_max 14
_diffrn_reflns_limit_h_min -14
_diffrn_reflns_limit_k_max 5
_diffrn_reflns_limit_k_min -5
_diffrn_reflns_limit_l_max 8
_diffrn_reflns_limit_l_min -8
_diffrn_reflns_number 2988
_diffrn_reflns_theta_full 30.99
_diffrn_reflns_theta_max 30.99
_diffrn_reflns_theta_min 4.10
_exptl_absorpt_coefficient_mu 0.139
_exptl_absorpt_correction_T_max 0.478
_exptl_absorpt_correction_T_min 0.410
_exptl_absorpt_correction_type gaussian
_exptl_absorpt_process_details
;
Absorb6.1 (R. J. Angel, 2004)
;
_exptl_crystal_colour colorless
_exptl_crystal_density_diffrn 1.671
_exptl_crystal_density_method 'not measured'
_exptl_crystal_description plate
_exptl_crystal_F_000 192
_exptl_crystal_size_max 0.16
_exptl_crystal_size_mid 0.10
_exptl_crystal_size_min 0.06
_refine_diff_density_max 0.140
_refine_diff_density_min -0.134
_refine_ls_extinction_method none
_refine_ls_goodness_of_fit_ref 0.995
_refine_ls_hydrogen_treatment constr
_refine_ls_matrix_type full
_refine_ls_number_parameters 57
_refine_ls_number_reflns 511
_refine_ls_number_restraints 1
_refine_ls_restrained_S_all 0.994
_refine_ls_R_factor_all 0.0655
_refine_ls_R_factor_gt 0.0400
_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^)+(0.0244P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme calc
_refine_ls_wR_factor_gt 0.0635
_refine_ls_wR_factor_ref 0.0707
_reflns_number_gt 387
_reflns_number_total 511
_reflns_threshold_expression I>2\s(I)
_iucr_refine_instructions_details
;
TITL DLALA_60KBAR_NV_OU IN PNA2(1)
CELL 0.71073 11.45178 5.51569 5.60601 90.00000 90.00000 90.00000
ZERR 3 0.00252 0.00256 0.00069 0.00000 0.00000 0.00000
LATT -1
SYMM -X, -Y, Z+ 0.50000
SYMM -X+ 0.50000, Y+ 0.50000, Z+ 0.50000
SYMM X+ 0.50000, -Y+ 0.50000, Z
SFAC C H N O
UNIT 12 28 4 8
L.S. 10
PLAN 30
FMAP 2
ACTA
CONF
BOND $H
EQIV $1 x,y,-1+z
EQIV $2 1-x,1-y,-1/2+z
EQIV $3 3/2-x,1/2+y,-1/2+z
HTAB N1 O2_$2
HTAB N1 O1_$1
HTAB N1 O2_$1
HTAB N1 O1_$3
WGHT 0.024400
FVAR 6.24429
O2 4 0.595161 0.483730 0.613145 11.00000 0.03181 0.02594 =
0.02061 -0.00191 -0.00070 0.00432
O1 4 0.684115 0.150615 0.747564 11.00000 0.03116 0.03291 =
0.01951 0.00351 0.00024 0.00645
C1 1 0.645168 0.284061 0.582385 11.00000 0.01624 0.02388 =
0.02248 0.00008 0.00305 -0.00215
C2 1 0.662082 0.189841 0.331250 11.00000 0.01822 0.02692 =
0.01349 0.00270 -0.00057 0.00065
AFIX 13
H2 2 0.744593 0.148129 0.309663 11.00000 -1.20000
AFIX 0
C3 1 0.589455 -0.034177 0.287397 11.00000 0.03542 0.02318 =
0.02674 -0.00213 -0.00355 -0.00221
AFIX 137
H3B 2 0.607740 -0.099410 0.133091 11.00000 -1.20000
H3A 2 0.508106 0.007394 0.293506 11.00000 -1.20000
H3C 2 0.606332 -0.152974 0.407707 11.00000 -1.20000
AFIX 0
N1 3 0.630865 0.376183 0.157556 11.00000 0.02676 0.03536 =
0.01228 -0.00011 -0.00147 -0.00256
AFIX 137
H1C 2 0.675218 0.506633 0.180409 11.00000 -1.20000
H1A 2 0.556073 0.415998 0.175637 11.00000 -1.20000
H1B 2 0.642279 0.319491 0.010759 11.00000 -1.20000
HKLF 4
REM DLALA_60KBAR_NV_OU IN PNA2(1)
REM R1 = 0.0400 for 387 Fo > 4sig(Fo) and 0.0655 for all 511 data
REM 57 parameters refined using 1 restraints
END
WGHT 0.0244 0.0000
REM Highest difference peak 0.140, deepest hole -0.134, 1-sigma level 0.039
Q1 1 0.5203 -0.1609 0.0839 11.00000 0.05 0.14
Q2 1 0.6750 0.2832 -0.1041 11.00000 0.05 0.13
Q3 1 0.5246 0.2937 0.0276 11.00000 0.05 0.13
Q4 1 0.7009 -0.1892 0.1777 11.00000 0.05 0.13
Q5 1 0.6166 0.1421 0.2929 11.00000 0.05 0.13
Q6 1 0.7620 0.4822 0.2441 11.00000 0.05 0.12
Q7 1 0.6611 0.1968 0.4390 11.00000 0.05 0.12
Q8 1 0.5703 -0.2815 0.5608 11.00000 0.05 0.12
Q9 1 0.6590 0.1104 0.1364 11.00000 0.05 0.12
Q10 1 0.6763 0.2918 0.4584 11.00000 0.05 0.12
Q11 1 0.7267 0.5811 0.2697 11.00000 0.05 0.11
Q12 1 0.5639 -0.0368 0.0418 11.00000 0.05 0.11
Q13 1 0.6324 0.6645 0.1625 11.00000 0.05 0.11
Q14 1 0.5372 0.6332 0.6029 11.00000 0.05 0.11
Q15 1 0.4248 -0.0516 0.3632 11.00000 0.05 0.11
Q16 1 0.5572 -0.1426 0.3527 11.00000 0.05 0.11
Q17 1 0.5843 0.5052 0.1991 11.00000 0.05 0.11
Q18 1 0.5241 -0.2832 0.3975 11.00000 0.05 0.11
Q19 1 0.4824 0.2974 0.1682 11.00000 0.05 0.10
Q20 1 0.6783 -0.0488 0.6099 11.00000 0.05 0.10
Q21 1 0.5826 0.6478 0.7409 11.00000 0.05 0.10
Q22 1 0.6626 0.3846 0.6186 11.00000 0.05 0.10
Q23 1 0.5223 0.2241 0.5211 11.00000 0.05 0.10
Q24 1 0.5137 0.4814 0.6163 11.00000 0.05 0.10
Q25 1 0.6178 -0.0526 0.7532 11.00000 0.05 0.10
Q26 1 0.5251 0.1314 0.2004 11.00000 0.05 0.10
Q27 1 0.6709 -0.2628 0.0502 11.00000 0.05 0.10
Q28 1 0.6243 0.2765 0.0506 11.00000 0.05 0.10
Q29 1 0.6521 -0.0398 0.1846 11.00000 0.05 0.09
Q30 1 0.6193 0.0814 0.0134 11.00000 0.05 0.09
;
_[local]_cod_data_source_file gp5051.cif
_[local]_cod_data_source_block dlala_60kbar
_cod_original_cell_volume 354.10(19)
_cod_database_code 2105155
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, z+1/2'
'-x+1/2, y+1/2, z+1/2'
'x+1/2, -y+1/2, z'
loop_
_atom_site_type_symbol
_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_symmetry_multiplicity
O O2 0.5952(2) 0.4837(6) 0.6131(4) 0.0261(9) Uani d . 1 1
O O1 0.68412(17) 0.1506(5) 0.7476(3) 0.0279(8) Uani d . 1 1
C C1 0.6452(2) 0.2841(8) 0.5824(5) 0.0209(12) Uani d . 1 1
C C2 0.6621(2) 0.1898(8) 0.3312(4) 0.0195(12) Uani d . 1 1
H H2 0.7446 0.1481 0.3097 0.023 Uiso calc R 1 1
C C3 0.5895(3) -0.0342(10) 0.2874(6) 0.0284(12) Uani d . 1 1
H H3B 0.6077 -0.0994 0.1331 0.034 Uiso calc R 1 1
H H3A 0.5081 0.0074 0.2935 0.034 Uiso calc R 1 1
H H3C 0.6063 -0.1530 0.4077 0.034 Uiso calc R 1 1
N N1 0.63087(19) 0.3762(6) 0.1576(3) 0.0248(10) Uani d . 1 1
H H1C 0.6752 0.5066 0.1804 0.030 Uiso calc R 1 1
H H1A 0.5561 0.4160 0.1756 0.030 Uiso calc R 1 1
H H1B 0.6423 0.3195 0.0108 0.030 Uiso calc R 1 1
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
O2 0.0318(14) 0.026(3) 0.0206(12) 0.0043(10) -0.0007(9) -0.0019(12)
O1 0.0312(14) 0.033(3) 0.0195(9) 0.0065(9) 0.0002(9) 0.0035(13)
C1 0.016(2) 0.024(5) 0.0225(17) -0.0022(13) 0.0031(12) 0.0001(19)
C2 0.018(2) 0.027(5) 0.0135(15) 0.0007(13) -0.0006(10) 0.0027(17)
C3 0.035(2) 0.023(5) 0.0267(18) -0.0022(14) -0.0035(13) -0.0021(18)
N1 0.0268(17) 0.035(4) 0.0123(11) -0.0026(10) -0.0015(9) -0.0001(16)
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'
N N 0.0061 0.0033 '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'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
O2 C1 O1 124.9(3)
O2 C1 C2 119.2(3)
O1 C1 C2 115.9(3)
N1 C2 C3 109.4(3)
N1 C2 C1 110.3(3)
C3 C2 C1 111.2(3)
N1 C2 H2 108.6
C3 C2 H2 108.6
C1 C2 H2 108.6
C2 C3 H3B 109.5
C2 C3 H3A 109.5
H3B C3 H3A 109.5
C2 C3 H3C 109.5
H3B C3 H3C 109.5
H3A C3 H3C 109.5
C2 N1 H1C 109.5
C2 N1 H1A 109.5
H1C N1 H1A 109.5
C2 N1 H1B 109.5
H1C N1 H1B 109.5
H1A N1 H1B 109.5
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O2 C1 1.253(5)
O1 C1 1.264(4)
C1 C2 1.513(4)
C2 N1 1.460(5)
C2 C3 1.510(6)
C2 H2 0.9800
C3 H3B 0.9600
C3 H3A 0.9600
C3 H3C 0.9600
N1 H1C 0.8900
N1 H1A 0.8900
N1 H1B 0.8900
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 H1A O2 2_664 0.89 1.85 2.713(3) 162.2
N1 H1B O1 1_554 0.89 1.81 2.684(3) 166.8
N1 H1B O2 1_554 0.89 2.47 3.136(3) 132.4
N1 H1C O1 3_654 0.89 1.84 2.652(4) 151.7
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
O2 C1 C2 N1 9.0(5)
O1 C1 C2 N1 -170.9(3)
O2 C1 C2 C3 -112.6(5)
O1 C1 C2 C3 67.5(5)