Pressure Effect ond,l-Mandelic Acid Racemate Crystallization
Cai, Weizhao; Marciniak, Jędrzej; Andrzejewski, Michał; Katrusiak, Andrzej; The Journal of Physical Chemistry C 117 (2013) 7279–; doi:10.1021/jp401626a

data_1511835
_publ_section_title
;
 Pressure Effect ond,l-Mandelic Acid Racemate Crystallization
;
_journal_issue                   14
_journal_name_full               'The Journal of Physical Chemistry C'
_journal_page_first              7279
_journal_paper_doi               10.1021/jp401626a
_journal_volume                  117
_journal_year                    2013
_chemical_formula_moiety         'C8 H8 O3'
_chemical_formula_sum            'C8 H8 O3'
_chemical_formula_weight         152.14
_chemical_name_common            mandelic_acid
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 93.03(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   5.825(2)
_cell_length_b                   28.908(11)
_cell_length_c                   8.224(6)
_cell_measurement_pressure       760000
_cell_measurement_reflns_used    4768
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.67
_cell_measurement_theta_min      2.82
_cell_volume                     1382.9(12)
_computing_cell_refinement       'CrysAlis (Oxford Diffraction, 2004)'
_computing_data_collection       'CrysAlis (Oxford Diffraction, 2004)'
_computing_data_reduction        'CrysAlisRED (Oxford Diffraction, 2004)'
_computing_molecular_graphics    'Mercury (Macrae et al., 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.211
_diffrn_measured_fraction_theta_max 0.211
_diffrn_measurement_device_type  'Kuma KM4CCD \k geometry'
_diffrn_measurement_method
;HP omega scans - for more details see:
A. Budzianowski, A. Katrusiak in High-Pressure Crystallography
(Eds.: A. Katrusiak, P. F. McMillan),
Dordrecht: Kluwer Acad. Publ., 2004 pp.157-168
;
_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  0.2296
_diffrn_reflns_av_sigmaI/netI    0.1165
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       4
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            4768
_diffrn_reflns_theta_full        27.67
_diffrn_reflns_theta_max         27.67
_diffrn_reflns_theta_min         2.82
_exptl_absorpt_coefficient_mu    0.113
_exptl_absorpt_correction_T_max  0.919
_exptl_absorpt_correction_T_min  0.495
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
Katrusiak, A. (2003). REDSHABS - Program for correcting
reflections intensities for DAC absorption, gasket shadowing
and sample crystal absorption. Adam Mickiewicz University, Pozna\'n.
Katrusiak, A. (2004). Z. Kristallogr. 219, 461-467
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.462
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate-shaped
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.281
_refine_diff_density_min         -0.265
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.335
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         684
_refine_ls_number_restraints     302
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.2242
_refine_ls_R_factor_gt           0.2052
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1218P)^2^+19.2746P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.4101
_refine_ls_wR_factor_ref         0.4214
_reflns_number_gt                598
_reflns_number_total             684
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp401626a_si_002.cif
_cod_data_source_block           mandelic_acid_0.76GPa(CCDC923830)
_cod_original_sg_symbol_Hall     '-p 2ybc'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1511835