5-Ethyl <small>L</small>-glutamate
Wu, Yong-Fei; Xiao Fengping; Jin, Long-Fei; Li, Fen-Fang; Dai, Xu-Ya; Acta Crystallographica Section E 61 (2005) o4028–o4029; doi:10.1107/S1600536805035919

data_2207595
_publ_section_title
;
 5-Ethyl <small>L</small>-glutamate
;
_journal_coeditor_code           LH6541
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o4028
_journal_page_last               o4029
_journal_paper_doi               10.1107/S1600536805035919
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C7 H13 N O4'
_chemical_formula_moiety         'C7 H13 N O4'
_chemical_formula_sum            'C7 H13 N O4'
_chemical_formula_weight         175.18
_chemical_name_systematic
;
5-Ethyl L-glutamate
;
_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'
_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                 90.752(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.691(3)
_cell_length_b                   5.2631(17)
_cell_length_c                   17.297(6)
_cell_measurement_reflns_used    1376
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      21.59
_cell_measurement_theta_min      3.14
_cell_volume                     882.2(5)
_computing_cell_refinement       'SAINT-Plus (Bruker, 2001)'
_computing_data_collection       'APEX (Bruker, 2001)'
_computing_data_reduction        SAINT-Plus
_computing_molecular_graphics    'SHELXTL-NT (Bruker, 2001)'
_computing_publication_material  SHELXTL-NT
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker SMART-APEX CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0265
_diffrn_reflns_av_sigmaI/netI    0.0302
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            5098
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.36
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_T_max  0.9978
_exptl_absorpt_correction_T_min  0.9480
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.319
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             376
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.49
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.501
_refine_diff_density_min         -0.240
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         1927
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0748
_refine_ls_R_factor_gt           0.0602
_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^)+(0.0984P)^2^+0.2865P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1636
_refine_ls_wR_factor_ref         0.1778
_reflns_number_gt                1546
_reflns_number_total             1927
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh6541.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               2207595
_cod_database_fobs_code          2207595