Crystal Engineering of Tegafur Cocrystals: Structural Analysis and Physicochemical Properties
Aitipamula, Srinivasulu; Chow, Pui Shan; Tan, Reginald B. H.; Crystal Growth & Design 14 (2014) 6557–; doi:10.1021/cg501469r

data_4512289
_publ_section_title
;
 Crystal Engineering of Tegafur Cocrystals: Structural Analysis and
 Physicochemical Properties
;
_journal_issue                   12
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              6557
_journal_paper_doi               10.1021/cg501469r
_journal_volume                  14
_journal_year                    2014
_chemical_formula_sum            'C15 H15 F N2 O6'
_chemical_formula_weight         338.29
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.39(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.1227(10)
_cell_length_b                   21.618(4)
_cell_length_c                   13.215(3)
_cell_measurement_reflns_used    3256
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      30.9939
_cell_measurement_theta_min      1.8085
_cell_volume                     1460.9(5)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2007)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'Rigaku Saturn 70 CCD area detector'
_diffrn_measurement_method       '\w scans'
_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  0.0306
_diffrn_reflns_av_sigmaI/netI    0.0343
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            9224
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.81
_exptl_absorpt_coefficient_mu    0.128
_exptl_absorpt_correction_T_max  0.9590
_exptl_absorpt_correction_T_min  0.9458
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'R. H. Blessing, Acta Cryst. 1995 A51, 33-38'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.538
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.33
_refine_diff_density_max         0.532
_refine_diff_density_min         -0.380
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.148
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     223
_refine_ls_number_reflns         3487
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.148
_refine_ls_R_factor_all          0.0769
_refine_ls_R_factor_gt           0.0700
_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^)+(0.1180P)^2^+0.5603P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1975
_refine_ls_wR_factor_ref         0.2090
_reflns_number_gt                3112
_reflns_number_total             3487
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg501469r_si_002.cif
_cod_data_source_block           TG-4HBA
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2935 2014-11-11 08:27:57Z andrius 

 Adding full bibliography for 4512287--4512291.cif.
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               4512289