Multicomponent solids of uracil derivatives – orotic and isoorotic acids
Kumar, Vineet; Goswami, Pramod Kumar; Thaimattam, Ram; Ramanan, Arunachalam; CrystEngComm 20 (2018) 3490–; doi:10.1039/C8CE00486B

data_7230606
_publ_section_title
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 Multicomponent solids of uracil derivatives -- orotic and isoorotic acids
;
_journal_issue                   25
_journal_name_full               CrystEngComm
_journal_page_first              3490
_journal_paper_doi               10.1039/C8CE00486B
_journal_volume                  20
_journal_year                    2018
_chemical_formula_moiety         'C12 H12 N2, 2(C5 H4 N2 O4)'
_chemical_formula_sum            'C22 H20 N6 O8'
_chemical_formula_weight         496.44
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2017-10-09
_audit_creation_method
;
Olex2 1.2-ac3
(compiled 2016.03.30 svn.r3266 for Rigaku Oxford Diffraction, GUI svn.r5168)     
;
_audit_update_record
;
2018-03-25 deposited with the CCDC.
2018-05-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.411(6)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.646(2)
_cell_length_b                   12.279(4)
_cell_length_c                   11.421(4)
_cell_measurement_reflns_used    1165
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      20.88
_cell_measurement_theta_min      2.66
_cell_volume                     1072.2(6)
_computing_cell_refinement       'SAINT v6.28A (Bruker, 2002)'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'SAINT v6.28A (Bruker, 2002)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0640
_diffrn_reflns_av_unetI/netI     0.0484
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10093
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        24.991
_diffrn_reflns_theta_max         24.991
_diffrn_reflns_theta_min         2.435
_exptl_absorpt_coefficient_mu    0.120
_exptl_absorpt_correction_T_max  .99
_exptl_absorpt_correction_T_min  0.895669
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS v.2.03 (Bruker,200?) was used for absorption correction.
R(int) was 0.0460 before and 0.0386 after correction.
The Ratio of minimum to maximum transmission is 0.8957.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.538
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             516
_exptl_crystal_size_max          .31
_exptl_crystal_size_mid          .24
_exptl_crystal_size_min          .16
_refine_diff_density_max         0.256
_refine_diff_density_min         -0.330
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.342
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         1880
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.342
_refine_ls_R_factor_all          0.1136
_refine_ls_R_factor_gt           0.0983
_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^)+(0.0544P)^2^+1.3658P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1818
_refine_ls_wR_factor_ref         0.1882
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1651
_reflns_number_total             1880
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ce00486b2.cif
_cod_data_source_block           jdm77am
_cod_depositor_comments
'Adding full bibliography for 7230605--7230614.cif.'
_cod_database_code               7230606
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All O(H) groups
2.a Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B)
2.b Aromatic/amide H refined with riding coordinates:
 N3(H3), N2(H2), C11(H11), C6(H6), C4(H4), C5(H5), C3(H3B)
2.c Idealised tetrahedral OH refined as rotating group:
 O3(H3A)
;
_shelx_res_checksum              18976
_shelx_shelxl_version_number     2017/1
_olex2_submission_special_instructions 'No special instructions were received'