#------------------------------------------------------------------------------
#$Date: 2016-02-20 00:18:51 +0200 (Sat, 20 Feb 2016) $
#$Revision: 176760 $
#$URL: svn://www.crystallography.net/cod/cif/2/01/54/2015434.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2015434
loop_
_publ_author_name
'Barnett, Sarah A.'
'Hulme, Ashley T.'
'Tocher, Derek A.'
_publ_section_title
;
 5-Fluorouracil and thymine form a crystalline solid solution
;
_journal_coeditor_code           GG3013
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o412
_journal_page_last               o415
_journal_paper_doi               10.1107/S0108270106019688
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac
'C4.48 H4.45 F0.52 N2 O2, C4.30 H3.91 F0.70 N2 O2'
_chemical_formula_moiety
'C4.48 H4.45 F0.52 N2 O2, C4.30 H3.91 F0.70 N2 O2'
_chemical_formula_sum            'C8.78 H8.34 F1.22 N4 O4'
_chemical_formula_weight         257.07
_chemical_name_common            5-fluorouracil--thymine
_chemical_name_systematic
;
5-fluoropyrimidine-2,4(1H,3H)-dione--5-methylpyrimidine-2,4(1H,3H)-dione
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 117.8130(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.3785(15)
_cell_length_b                   5.9918(5)
_cell_length_c                   20.0293(15)
_cell_measurement_reflns_used    4174
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.916
_cell_measurement_theta_min      2.300
_cell_volume                     2057.0(3)
_computing_cell_refinement       'SAINT (Bruker, 1998)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT
_computing_publication_material
;
CAMERON (Watkin et al.,  1996) and Mercury (Macrae et al.,
 2006)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'Bruker SMART APEX diffractometer'
_diffrn_measurement_method       'ω rotation with narrow frames'
_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  0.0155
_diffrn_reflns_av_sigmaI/netI    0.0163
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            8568
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         2.30
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.147
_exptl_absorpt_correction_T_max  0.9712
_exptl_absorpt_correction_T_min  0.8929
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.660
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'diamond tablet'
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.79
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.346
_refine_diff_density_min         -0.187
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     207
_refine_ls_number_reflns         2459
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0407
_refine_ls_R_factor_gt           0.0369
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0452P)²+1.6915P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0930
_refine_ls_wR_factor_ref         0.0955
_reflns_number_gt                2232
_reflns_number_total             2459
_reflns_threshold_expression     I>2σ(I)
_cod_data_source_file            gg3013.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2015434
_cod_database_fobs_code          2015434
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, -y+1/2, z-1/2'
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
F F9 0.5287(5) 0.5725(16) 0.34143(12) 0.0362(14) Uani d PD 0.524(8) A 1
C C9 0.5169(9) 0.573(4) 0.33083(14) 0.0347(17) Uani d PD 0.476(8) A 2
H H9A 0.4846 0.7064 0.3111 0.052 Uiso calc PR 0.238(4) A 2
H H9B 0.4842 0.4393 0.3112 0.052 Uiso calc PR 0.238(4) A 2
H H9C 0.5576 0.5718 0.3149 0.052 Uiso calc PR 0.238(4) A 2
H H9D 0.5330 0.4386 0.3137 0.052 Uiso calc PR 0.238(4) A 2
H H9E 0.5334 0.7057 0.3136 0.052 Uiso calc PR 0.238(4) A 2
H H9F 0.4600 0.5732 0.3099 0.052 Uiso calc PR 0.238(4) A 2
O O7 0.63996(6) 0.59939(16) 0.64191(5) 0.0302(2) Uani d . 1 . .
O O8 0.48879(6) 0.91031(16) 0.41262(5) 0.0298(2) Uani d . 1 . .
N N1 0.63001(6) 0.41914(18) 0.53753(6) 0.0252(2) Uani d . 1 . .
H H1 0.6629(10) 0.314(3) 0.5667(10) 0.034(4) Uiso d . 1 . .
N N3 0.56482(6) 0.75029(18) 0.52639(6) 0.0227(2) Uani d . 1 . .
H H3 0.5504(9) 0.860(3) 0.5481(9) 0.032(4) Uiso d . 1 . .
C C2 0.61375(7) 0.5881(2) 0.57345(7) 0.0224(3) Uani d . 1 . .
C C4 0.53270(7) 0.7575(2) 0.44885(7) 0.0225(3) Uani d . 1 A .
C C5 0.55443(7) 0.5728(2) 0.41635(6) 0.0245(3) Uani d D 1 . .
C C6 0.60150(8) 0.4126(2) 0.46055(8) 0.0262(3) Uani d . 1 A .
H H6 0.6180(9) 0.287(3) 0.4412(9) 0.032(4) Uiso d . 1 . .
F F19 0.6142(3) -0.1573(5) 0.8072(3) 0.0361(8) Uani d PD 0.695(8) B 3
C C19 0.5927(9) -0.151(2) 0.7950(12) 0.045(4) Uani d PD 0.305(8) B 4
H H19A 0.5983 -0.2251 0.8408 0.067 Uiso calc PR 0.152(4) B 4
H H19B 0.6029 -0.2578 0.7637 0.067 Uiso calc PR 0.152(4) B 4
H H19C 0.5395 -0.0924 0.7666 0.067 Uiso calc PR 0.152(4) B 4
H H19D 0.5622 -0.1585 0.7399 0.067 Uiso calc PR 0.152(4) B 4
H H19E 0.5576 -0.1257 0.8170 0.067 Uiso calc PR 0.152(4) B 4
H H19F 0.6210 -0.2911 0.8142 0.067 Uiso calc PR 0.152(4) B 4
O O17 0.77445(6) 0.60761(16) 0.85727(5) 0.0322(2) Uani d . 1 . .
O O18 0.69016(6) 0.02966(17) 0.94790(5) 0.0296(2) Uani d . 1 . .
N N11 0.69425(7) 0.3489(2) 0.77421(6) 0.0285(3) Uani d . 1 . .
H H11 0.6911(10) 0.425(3) 0.7355(11) 0.042(5) Uiso d . 1 . .
N N13 0.73097(6) 0.31769(18) 0.90113(6) 0.0222(2) Uani d . 1 . .
H H13 0.7564(10) 0.370(3) 0.9471(10) 0.033(4) Uiso d . 1 . .
C C12 0.73583(7) 0.4364(2) 0.84456(7) 0.0239(3) Uani d . 1 . .
C C14 0.69056(7) 0.1218(2) 0.89290(7) 0.0233(3) Uani d . 1 B .
C C15 0.65056(8) 0.0408(2) 0.81649(7) 0.0288(3) Uani d D 1 . .
C C16 0.65294(8) 0.1548(3) 0.76039(7) 0.0306(3) Uani d . 1 B .
H H16 0.6261(10) 0.109(3) 0.7093(10) 0.038(5) Uiso d . 1 . .
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
F F 0.0171 0.0103 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
C2 N1 C6 122.90(11)
C2 N1 H1 116.8(11)
C6 N1 H1 120.3(11)
C2 N3 C4 126.71(11)
C2 N3 H3 116.9(10)
C4 N3 H3 116.3(10)
O7 C2 N1 123.85(12)
O7 C2 N3 121.44(12)
N1 C2 N3 114.71(11)
O8 C4 N3 120.82(11)
O8 C4 C5 124.90(11)
N3 C4 C5 114.27(11)
C6 C5 F9 121.5(4)
C6 C5 C4 120.34(11)
F9 C5 C4 118.1(4)
C6 C5 C9 124.6(7)
C4 C5 C9 115.0(7)
C5 C6 N1 121.05(12)
C5 C6 H6 123.1(10)
N1 C6 H6 115.9(10)
C12 N11 C16 123.11(11)
C12 N11 H11 118.7(13)
C16 N11 H11 118.1(12)
C14 N13 C12 126.48(11)
C14 N13 H13 116.1(11)
C12 N13 H13 117.4(12)
O17 C12 N11 123.18(12)
O17 C12 N13 122.08(11)
N11 C12 N13 114.74(11)
O18 C14 N13 120.92(11)
O18 C14 C15 124.96(12)
N13 C14 C15 114.12(11)
C16 C15 F19 123.7(2)
C16 C15 C14 120.66(12)
F19 C15 C14 115.6(2)
C16 C15 C19 117.3(8)
C14 C15 C19 121.1(9)
C15 C16 N11 120.86(12)
C15 C16 H16 122.9(11)
N11 C16 H16 116.2(11)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
F9 C5 1.3426(18)
C9 C5 1.517(2)
O7 C2 1.2218(15)
O8 C4 1.2301(15)
N1 C2 1.3611(17)
N1 C6 1.3745(17)
N1 H1 0.894(18)
N3 C2 1.3779(16)
N3 C4 1.3781(15)
N3 H3 0.901(18)
C4 C5 1.4426(17)
C5 C6 1.3355(18)
C6 H6 0.968(17)
F19 C15 1.3488(17)
C19 C15 1.519(2)
O17 C12 1.2248(16)
O18 C14 1.2355(15)
N11 C12 1.3600(16)
N11 C16 1.3651(19)
N11 H11 0.876(19)
N13 C14 1.3774(16)
N13 C12 1.3775(16)
N13 H13 0.875(18)
C14 C15 1.4392(17)
C15 C16 1.3340(19)
C16 H16 0.948(18)
loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_site_symmetry_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
N1 H1 O17 4_646 0.894(18) 1.895(18) 2.7769(15) 168.4(16)
N3 H3 O8 5_676 0.901(18) 1.910(18) 2.8092(14) 175.2(15)
N11 H11 O7 . 0.876(19) 1.96(2) 2.7892(14) 156.6(16)
N13 H13 O18 7_657 0.875(18) 1.956(18) 2.8291(14) 176.1(16)
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
C6 N1 C2 O7 -178.26(12)
C6 N1 C2 N3 1.43(17)
C4 N3 C2 O7 178.96(12)
C4 N3 C2 N1 -0.74(18)
C2 N3 C4 O8 179.07(12)
C2 N3 C4 C5 -0.14(18)
O8 C4 C5 C6 -178.76(13)
N3 C4 C5 C6 0.41(18)
O8 C4 C5 F9 4.0(5)
N3 C4 C5 F9 -176.8(5)
O8 C4 C5 C9 -1.7(9)
N3 C4 C5 C9 177.5(9)
F9 C5 C6 N1 177.4(5)
C4 C5 C6 N1 0.2(2)
C9 C5 C6 N1 -176.5(9)
C2 N1 C6 C5 -1.2(2)
C16 N11 C12 O17 178.17(13)
C16 N11 C12 N13 -2.17(19)
C14 N13 C12 O17 -178.62(12)
C14 N13 C12 N11 1.72(19)
C12 N13 C14 O18 -179.86(12)
C12 N13 C14 C15 -0.01(18)
O18 C14 C15 C16 178.45(14)
N13 C14 C15 C16 -1.4(2)
O18 C14 C15 F19 -3.8(3)
N13 C14 C15 F19 176.3(3)
O18 C14 C15 C19 10.0(10)
N13 C14 C15 C19 -169.9(10)
F19 C15 C16 N11 -176.5(3)
C14 C15 C16 N11 1.0(2)
C19 C15 C16 N11 169.9(10)
C12 N11 C16 C15 0.9(2)
