Crystal structure of N-benzyloxycarbonyl-L-phenylalanine 3-methylphenyl ester, C24H23NO4
Han-Wen Liu; Dong-Liang Xu; Zi-Long Tang; Liang-Cai Yu; Feng-Jiao Tan; Zeitschrift für Kristallographie - New Crystal Structures 223 (2008) 405–; doi:

data_8102323
_publ_section_title
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 Crystal structure of N-benzyloxycarbonyl-L-phenylalanine
 3-methylphenyl ester, C24H23NO4
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_journal_issue                   4
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              405
_journal_volume                  223
_journal_year                    2008
_chemical_formula_sum            'C24 H23 N O4'
_chemical_formula_weight         389.43
_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                 110.115(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.181(3)
_cell_length_b                   5.2991(11)
_cell_length_c                   14.829(3)
_cell_measurement_reflns_used    285
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.62
_cell_measurement_theta_min      7.90
_cell_volume                     972.6(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0390
_diffrn_reflns_av_sigmaI/netI    0.0400
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            6859
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9821
_exptl_absorpt_correction_T_min  0.9562
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.330
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.148
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -10(10)
_refine_ls_extinction_coef       0.073(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     268
_refine_ls_number_reflns         2118
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0514
_refine_ls_R_factor_gt           0.0383
_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^)+(0.0522P)^2^+0.0439P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0907
_refine_ls_wR_factor_ref         0.0982
_reflns_number_gt                1710
_reflns_number_total             2118
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1267-2356.cff
_cod_data_source_block           xdl12_0m
_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.

'_exptl_absorpt_correction_type' value 'MUlTI-SCAN' changed
to 'multi-scan' 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 1555 2011-01-17 13:19:09Z saulius 
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_cod_original_cell_volume        972.5(3)
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               8102323