The invariom model and its application: refinement ofD,L-serine at different temperatures and resolution
Dittrich, B.; Hübschle, C. B.; Messerschmidt, M.; Kalinowski, R.; Girnt, D.; Luger, P.; Acta Crystallographica Section A Foundations of Crystallography 61 (2005) 314–320; doi:10.1107/S0108767305005039

data_2019334
_publ_section_title
;
 The invariom model and its application: refinement ofD,L-serine at
 different temperatures and resolution
;
_journal_issue                   3
_journal_name_full
'Acta Crystallographica Section A Foundations of Crystallography'
_journal_page_first              314
_journal_page_last               320
_journal_paper_doi               10.1107/S0108767305005039
_journal_volume                  61
_journal_year                    2005
_chemical_formula_analytical     'C3 H7 N O3'
_chemical_formula_moiety         'C3 H7 N O3'
_chemical_formula_sum            'C3 H7 N O3'
_chemical_formula_weight         105.10
_chemical_melting_point          235
_chemical_name_common            D,L-Serine
_chemical_name_systematic        '(+-) 2-Amino-3-hydroxypropionic acid'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_atom_type_scat_source           'Invariomic aspherical-atom scattering factors'
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.2
_audit_creation_method           'XD routine XDCIF'
_cell_angle_alpha                90
_cell_angle_beta                 106.87(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.7764(10)
_cell_length_b                   9.1947(9)
_cell_length_c                   4.7788(5)
_cell_measurement_reflns_used    10633
_cell_measurement_temperature    20
_cell_measurement_theta_max      40.258
_cell_measurement_theta_min      16.376
_cell_volume                     453.13(9)
_computing_molecular_graphics
'Koritsanszky et al, (2003), Platon (Spek, 2003)'
_computing_publication_material  'Koritsanszky et al, (2003), EnCIFer 1.1'
_computing_structure_refinement  'Koritsanszky et al, (2003)'
_diffrn_ambient_temperature      20
_diffrn_measured_fraction_theta_full 0.98
_diffrn_measured_fraction_theta_max 0.80
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type
'Bruker APEX on a Huber Type 512 diffractometer'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0268
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            38628
_diffrn_reflns_reduction_process 'Integration: SAINT, merging: SORTAV'
_diffrn_reflns_theta_full        40.25
_diffrn_reflns_theta_max         57.37
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.138
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.541
_exptl_crystal_density_meas      ?
_exptl_crystal_description       rectangular
_exptl_crystal_F_000             224.0
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.215
_refine_diff_density_min         -0.239
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.2952
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     93
_refine_ls_number_reflns         4292
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0272
_refine_ls_R_factor_gt           0.0196
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
     calc w1 = 1/[s^2^(Fo)]
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0218
_reflns_number_gt                4292
_reflns_number_total             5136
_reflns_threshold_expression     'I > 2\s I'
_cod_data_source_file            cn5001sup1.cif
_cod_data_source_block           20K
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P21/a
_cod_database_code               2019334