Structure–property relationships of molecular shape and orientation with compression and expansion of xylitol
Safari, Fatemeh; Katrusiak, Andrzej; Acta Crystallographica Section B 77 (2021) –; doi:10.1107/S2052520621000445

data_2108774
_publ_section_title
;
 Structure--property relationships of molecular shape and orientation with
 compression and expansion of xylitol
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2052520621000445
_journal_volume                  77
_journal_year                    2021
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C5 H12 O5'
_chemical_formula_sum            'C5 H12 O5'
_chemical_formula_weight         152.15
_chemical_name_common            Xylitol
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2020-04-27
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5337)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.2305(2)
_cell_length_b                   8.8992(11)
_cell_length_c                   8.7624(8)
_cell_measurement_reflns_used    1323
_cell_measurement_temperature    296.0(10)
_cell_measurement_theta_max      25.8950
_cell_measurement_theta_min      4.0810
_cell_volume                     641.80(10)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.379
_diffrn_measured_fraction_theta_max 0.370
_diffrn_measurement_device_type  'multiwire proportional'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0203
_diffrn_reflns_av_unetI/netI     0.0168
_diffrn_reflns_Laue_measured_fraction_full 0.379
_diffrn_reflns_Laue_measured_fraction_max 0.370
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            2149
_diffrn_reflns_point_group_measured_fraction_full 0.394
_diffrn_reflns_point_group_measured_fraction_max 0.375
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.176
_diffrn_reflns_theta_min         4.097
_exptl_absorpt_coefficient_mu    0.142
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.575
_exptl_crystal_description       prism
_exptl_crystal_F_000             328
_refine_diff_density_max         0.095
_refine_diff_density_min         -0.110
_refine_diff_density_rms         0.024
_refine_ls_abs_structure_details
;
 Flack x determined using 176 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.4(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.127
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     96
_refine_ls_number_reflns         482
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.127
_refine_ls_R_factor_all          0.0263
_refine_ls_R_factor_gt           0.0236
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0409P)^2^+0.0191P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0575
_refine_ls_wR_factor_ref         0.0596
_reflns_Friedel_coverage         0.691
_reflns_Friedel_fraction_full    0.416
_reflns_Friedel_fraction_max     0.382
_reflns_number_gt                456
_reflns_number_total             482
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            um5047sup1.cif
_cod_data_source_block           Xylitol0_63GPa
_cod_database_code               2108774
_cod_database_fobs_code          2108774
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C3(H3A), C2(H2A), C4(H4A)
2.b Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B), C5(H5A,H5B)
2.c Idealised tetrahedral OH refined as rotating group:
 O4(H4), O2(H2), O3(H3), O1(H1), O5(H5)
;
_shelx_res_checksum              31172
_shelx_hkl_checksum              37505
_olex2_submission_special_instructions 'No special instructions were received'