Molecular aggregation in selected crystalline 1:1 complexes of hydrophobic <small>D</small>- and <small>L</small>-amino acids. II. The <small>D</small>-norleucine series
Dalhus, Bjørn; Görbitz, Carl Henrik; Acta Crystallographica Section C 55 (1999) 1105–1112; doi:10.1107/S0108270199003649

data_2008708
_publ_section_title
;
 Molecular aggregation in selected crystalline 1:1 complexes of
 hydrophobic <small>D</small>- and <small>L</small>-amino acids. II.
 The <small>D</small>-norleucine series
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1105
_journal_page_last               1112
_journal_paper_doi               10.1107/S0108270199003649
_journal_volume                  55
_journal_year                    1999
_chemical_formula_moiety         'C6 H13 NO2 , C6 H13 NO2 '
_chemical_formula_sum            'C12 H26 N2 O4'
_chemical_formula_weight         262.35
_chemical_name_systematic
;
 L-Leucine:D-Norleucine
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 112.3030(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.17780(10)
_cell_length_b                   27.8078(5)
_cell_length_c                   5.39950(10)
_cell_measurement_reflns_used    6268
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      49.52
_cell_measurement_theta_min      2.93
_cell_volume                     719.28(2)
_computing_cell_refinement       'SAINT (Siemens, 1995)'
_computing_data_collection       'SMART (Siemens, 1995)'
_computing_data_reduction        'SAINT (Siemens, 1995)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 1994)'
_computing_structure_solution    'SHELXTL (Sheldrick, 1994)'
_diffrn_ambient_temperature      150(2)
_diffrn_measurement_device
;
Siemens SMART CCD area-detector diffractometer
;
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0329
_diffrn_reflns_av_sigmaI/netI    0.0465
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       57
_diffrn_reflns_limit_k_min       -52
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            17963
_diffrn_reflns_theta_max         49.52
_diffrn_reflns_theta_min         2.93
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.993
_exptl_absorpt_correction_T_min  0.952
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.211
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             288
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.363
_refine_diff_density_min         -0.471
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.192
_refine_ls_goodness_of_fit_obs   1.220
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     249
_refine_ls_number_reflns         11326
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.192
_refine_ls_restrained_S_obs      1.220
_refine_ls_R_factor_all          0.0670
_refine_ls_R_factor_obs          0.0587
_refine_ls_shift/esd_max         0.001
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0328P)^2^+0.1433P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1354
_refine_ls_wR_factor_obs         0.1308
_reflns_number_observed          10090
_reflns_number_total             11326
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            os1053.cif
_cod_data_source_block           B3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0328P)^2^+0.1433P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w =
1/[\s^2^(Fo^2^)+(0.0328P)^2^+0.1433P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               2008708