Two modifications of <small>L</small>-alanyl-<small>L</small>-tyrosyl-<small>L</small>-alanine with different solvent molecules in the crystal lattice
Chęcińska, Lilianna; Förster, Diana; Morgenroth, Wolfgang; Luger, Peter; Acta Crystallographica Section C 62 (2006) o454–o457; doi:10.1107/S0108270106018750

data_2015476
_publ_section_title
;
 Two modifications of
 <small>L</small>-alanyl-<small>L</small>-tyrosyl-<small>L</small>-alanine
 with different solvent molecules in the crystal lattice
;
_journal_coeditor_code           FA3016
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o454
_journal_page_last               o457
_journal_paper_doi               10.1107/S0108270106018750
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C15 H21 N3 O5 , C2 H6 O'
_chemical_formula_moiety         'C15 H21 N3 O5 , C2 H6 O'
_chemical_formula_sum            'C17 H27 N3 O6'
_chemical_formula_weight         369.42
_chemical_name_common            'L-alanyl-L-tyrosyl-L-alanine ethanol solvate'
_chemical_name_systematic
;
L-alanyl-L-tyrosyl-L-alanine ethanol solvate
;
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   direct
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.56(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.845(2)
_cell_length_b                   9.057(2)
_cell_length_c                   12.364(3)
_cell_measurement_reflns_used    1447
_cell_measurement_temperature    20(2)
_cell_measurement_theta_max      15.77
_cell_measurement_theta_min      1.17
_cell_volume                     987.3(4)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1997--2001)'
_computing_data_reduction
'SAINT (Bruker, 1997--2001) and SADABS (Bruker, 1997--2001)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  PLATON
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      20(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
'Huber four-circle diffractometer with Bruker SMART Apex CCD area-detector'
_diffrn_measurement_method       \f
_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  0.0348
_diffrn_reflns_av_sigmaI/netI    0.0159
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            9710
_diffrn_reflns_theta_full        37.00
_diffrn_reflns_theta_max         37.00
_diffrn_reflns_theta_min         1.65
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             396
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.500
_refine_diff_density_min         -0.192
_refine_ls_abs_structure_details rm
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.099
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         5258
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.099
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0290
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0564P)^2^+0.0452P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0769
_refine_ls_wR_factor_ref         0.0773
_reflns_number_gt                5178
_reflns_number_total             5258
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fa3016.cif
_cod_data_source_block           II
_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               2015476
_cod_database_fobs_code          2015476