Pressure induced phase transitions in the tripeptide glutathione to 5.24 GPa: the crystal structure of glutathione-II at 2.94 GPa and glutathione-III at 3.70 GPa
Moggach, Stephen A.; Lennie, Alistair R.; Morrison, Carole A.; Richardson, Patricia; Stefanowicz, Fiona A.; Warren, John E.; CrystEngComm 12 (2010) 2587–; doi:10.1039/c001254h

data_7212516
_publ_section_title
;
 Pressure induced phase transitions in the tripeptide glutathione to 5.24
 GPa: the crystal structure of glutathione-II at 2.94 GPa and
 glutathione-III at 3.70 GPa
;
_journal_issue                   9
_journal_name_full               CrystEngComm
_journal_page_first              2587
_journal_paper_doi               10.1039/c001254h
_journal_volume                  12
_journal_year                    2010
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C10 H17 N3 O6 S1'
_chemical_formula_sum            'C10 H17 N3 O6 S'
_chemical_formula_weight         307.33
_chemical_name_common            L-glutamyl-L-cysteinylglycine
_chemical_name_systematic        L-glutamyl-L-cysteinylglycine
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             10-01-18
_audit_creation_method           CRYSTALS_ver_14.01
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.2748(2)
_cell_length_b                   8.3459(3)
_cell_length_c                   25.496(3)
_cell_measurement_reflns_used    1681
_cell_measurement_temperature    293
_cell_measurement_theta_max      17
_cell_measurement_theta_min      3
_cell_volume                     1122.41(14)
_computing_cell_refinement       'Apex2 (Bruker AXS, 2006)'
_computing_data_collection       'Apex2 (Bruker AXS, 2006)'
_computing_data_reduction        'Apex2 (Bruker AXS, 2006)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.421
_diffrn_measured_fraction_theta_max 0.392
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Bruker Apex2'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  silicon
_diffrn_radiation_type           ' synchrotron '
_diffrn_radiation_wavelength     0.47670
_diffrn_reflns_av_R_equivalents  0.059
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5512
_diffrn_reflns_theta_full        13.365
_diffrn_reflns_theta_max         17.357
_diffrn_reflns_theta_min         1.722
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.74
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Siemens, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.819
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.24
_refine_diff_density_min         -0.29
_refine_ls_abs_structure_details 'Flack (1983), 0 Friedel-pairs'
_refine_ls_abs_structure_Flack   -0.2(3)
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.1146
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         887
_refine_ls_number_restraints     200
_refine_ls_R_factor_all          0.0483
_refine_ls_R_factor_gt           0.0212
_refine_ls_shift/su_max          0.0001779
_refine_ls_shift/su_mean         0.0000201
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982)
[weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)]
where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax
Method = Robust Weighting (Prince, 1982)
W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^
A~i~ are:
2.25 0.943 -0.552
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0449
_refine_ls_wR_factor_gt          0.0340
_refine_ls_wR_factor_ref         0.0449
_reflns_limit_h_max              6
_reflns_limit_h_min              -6
_reflns_limit_k_max              10
_reflns_limit_k_min              0
_reflns_limit_l_max              14
_reflns_limit_l_min              0
_reflns_number_gt                338
_reflns_number_total             891
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   0.00
_oxford_diffrn_Wilson_scale      0.00
_oxford_refine_ls_r_factor_ref   0.0483
_oxford_refine_ls_scale          0.4018(6)
_oxford_reflns_number_all        887
_oxford_reflns_threshold_expression_ref I>-10.0\s(I)
_oxford_structure_analysis_title '3.70 GPa data set'
_cod_data_source_file            c001254h.txt
_cod_data_source_block           glut370
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        1122.39(14)
_cod_original_sg_symbol_Hall     'P 2ac 2ab '
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_original_formula_sum        'C10 H17 N3 O6 S1'
_cod_database_code               7212516