Effect of pressure on crystalline <small>L</small>- and <small>DL</small>-serine: revisited by a combined single-crystal X-ray diffraction at a laboratory source and polarized Raman spectroscopy study
Zakharov, Boris A.; Kolesov, Boris A.; Boldyreva, Elena V.; Acta Crystallographica Section B 68 (2012) 275–286; doi:10.1107/S0108768112015960

data_2105103
_publ_section_title
;
 Effect of pressure on crystalline <small>L</small>- and
 <small>DL</small>-serine: revisited by a combined single-crystal X-ray
 diffraction at a laboratory source and polarized Raman spectroscopy study
;
_journal_coeditor_code           GP5049
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              275
_journal_page_last               286
_journal_paper_doi               10.1107/S0108768112015960
_journal_volume                  68
_journal_year                    2012
_chemical_formula_moiety         'C3 H7 N O3'
_chemical_formula_sum            'C3 H7 N O3'
_chemical_formula_weight         105.10
_chemical_melting_point          501
_chemical_name_common            DL-serine
_chemical_name_systematic
;
2-amino-3-hydroxypropanoic acid
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 102.35(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.7505(6)
_cell_length_b                   8.6644(6)
_cell_length_c                   9.725(11)
_cell_measurement_reflns_used    1837
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      30.9600
_cell_measurement_theta_min      2.3459
_cell_volume                     391.0(4)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_molecular_graphics    'Mercury (Macrae <i>et al.</i>, 2006)'
_computing_publication_material
;
Mercury (Macrae et al., 2006),
PLATON (Spek, 2009),
enCIFer (Allen et al., 2004)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.282
_diffrn_measured_fraction_theta_max 0.282
_diffrn_measurement_device_type  'Xcalibur, Ruby, Gemini ultra'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0503
_diffrn_reflns_av_sigmaI/netI    0.0281
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       4
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            3625
_diffrn_reflns_theta_full        31.03
_diffrn_reflns_theta_max         31.03
_diffrn_reflns_theta_min         4.46
_exptl_absorpt_coefficient_mu    0.160
_exptl_absorpt_correction_T_max  0.474
_exptl_absorpt_correction_T_min  0.397
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
Absorb Angel (2004) J. Appl. Cryst. 37:486-492
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.785
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             224
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.111
_refine_diff_density_min         -0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     66
_refine_ls_number_reflns         354
_refine_ls_number_restraints     55
_refine_ls_restrained_S_all      0.989
_refine_ls_R_factor_all          0.0418
_refine_ls_R_factor_gt           0.0315
_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^)+(0.0444P)^2^+0.0577P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0731
_refine_ls_wR_factor_ref         0.0783
_reflns_number_gt                301
_reflns_number_total             354
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            gp5049.cif
_cod_data_source_block           DL-serine4.4GPa
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'GAUSSIAN' changed to
'gaussian' 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_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               2105103
_cod_database_fobs_code          2105103