Kinetics, Thermodynamics, and Scale-Up of an Azeotropic Drying Process: Mapping Rapid Phase Conversion with Process Analytical Technology
Dance, Zachary E. X.; Crawford, Morgan; Moment, Aaron; Brunskill, Andrew; Wabuyele, Busolo; Organic Process Research & Development  (2020) –; doi:10.1021/acs.oprd.0c00275

data_1558891
_publ_section_title
;
 Kinetics, Thermodynamics, and Scale-Up of an Azeotropic Drying Process:
 Mapping Rapid Phase Conversion with Process Analytical Technology
;
_journal_name_full               'Organic Process Research &amp; Development'
_journal_paper_doi               10.1021/acs.oprd.0c00275
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C10 H14 N2 O6, 0.5(H2 O)'
_chemical_formula_sum            'C10 H15 N2 O6.5'
_chemical_formula_weight         267.24
_chemical_name_systematic
;
1-((2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)
-3-methyltetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)
-dione hemihydrate
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           18
_space_group_name_Hall           'P 2 2ab'
_space_group_name_H-M_alt        'P 21 21 2'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2016/6
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.1184(8)
_cell_length_b                   28.602(3)
_cell_length_c                   5.6452(7)
_cell_measurement_reflns_used    6921
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      66.57
_cell_measurement_theta_min      6.19
_cell_volume                     1149.4(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0373
_diffrn_reflns_av_unetI/netI     0.0308
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            7269
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        66.500
_diffrn_reflns_theta_max         66.569
_diffrn_reflns_theta_min         6.189
_diffrn_source                   'sealed-tube microsource X-ray generator'
_exptl_absorpt_coefficient_mu    1.124
_exptl_absorpt_correction_T_max  0.914
_exptl_absorpt_correction_T_min  0.808
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
(SADABS; Sheldrick, 2003) 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.544
_exptl_crystal_description       block
_exptl_crystal_F_000             564
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.263
_refine_diff_density_min         -0.180
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details
; 
 Flack x determined using 786 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.02(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.109
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         2032
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.0314
_refine_ls_R_factor_gt           0.0309
_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^)+(0.0277P)^2^+0.6861P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0809
_refine_ls_wR_factor_ref         0.0814
_reflns_Friedel_coverage         0.647
_reflns_Friedel_fraction_full    0.993
_reflns_Friedel_fraction_max     0.991
_reflns_number_gt                1995
_reflns_number_total             2032
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            op0c00275_si_004.cif
_cod_data_source_block           mdk069_ab
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_atom_sites_solution_secondary' value 'diffmap' was
changed to 'difmap'.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_formula_sum        'C10 H15 N2 O6.50'
_cod_database_code               1558891
_shelx_shelxl_version_number     2016/6
_shelx_res_checksum              41735
_shelx_hkl_checksum              19450