Experimental and theoretical studies on the coordination chemistry of the N(1)-hexyl substituted pyrimidines (uracil, 5-fluorouracil and cytosine).
Barceló-Oliver, Miquel; Baquero, Beatriz Adriana; Bauzá, Antonio; García-Raso, Angel; Vich, Roberto; Mata, Ignasi; Molins, Elies; Terrón, Angel; Frontera, Antonio; Dalton transactions (Cambridge, England : 2003) 42 (2013) 7631–7642; doi:10.1039/c3dt32922d

data_7021378
_publ_section_title
;
 Experimental and theoretical studies on the coordination chemistry of the
 N(1)-hexyl substituted pyrimidines (uracil, 5-fluorouracil and cytosine).
;
_journal_issue                   21
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7631
_journal_page_last               7642
_journal_paper_doi               10.1039/c3dt32922d
_journal_volume                  42
_journal_year                    2013
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C20 H28 Ag2 F2 N4 O4'
_chemical_formula_sum            'C20 H28 Ag2 F2 N4 O4'
_chemical_formula_weight         642.2
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2009-09-23T09:19:50-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                67.25(5)
_cell_angle_beta                 76.51(4)
_cell_angle_gamma                85.53(3)
_cell_formula_units_Z            2
_cell_length_a                   9.534(3)
_cell_length_b                   11.142(5)
_cell_length_c                   12.049(7)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      20.14
_cell_measurement_theta_min      6.43
_cell_measurement_wavelength     0.71073
_cell_volume                     1147.7(10)
_computing_cell_refinement       'CAD4 Express (Enraf Nonius, 1994)'
_computing_data_collection       'CAD4 Express (Enraf Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'scintillation LiI'
_diffrn_detector_dtime           1.195
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Enraf Nonius CAD4'
_diffrn_measurement_method       'non-profiled omega scans'
_diffrn_orient_matrix_type
;
x-axis points to radiation source
the matrix is specified in reciprocal space
;
_diffrn_orient_matrix_UB_11      0.041414
_diffrn_orient_matrix_UB_12      0.081356
_diffrn_orient_matrix_UB_13      -0.070202
_diffrn_orient_matrix_UB_21      0.011016
_diffrn_orient_matrix_UB_22      0.038649
_diffrn_orient_matrix_UB_23      0.059892
_diffrn_orient_matrix_UB_31      0.099002
_diffrn_orient_matrix_UB_32      -0.036883
_diffrn_orient_matrix_UB_33      0.000479
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0265
_diffrn_reflns_av_unetI/netI     0.0726
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4723
_diffrn_reflns_theta_full        25.97
_diffrn_reflns_theta_max         25.97
_diffrn_reflns_theta_min         1.88
_diffrn_source                   'Enraf Nonius FR590'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 60
_diffrn_standards_interval_time  60
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    1.756
_exptl_absorpt_correction_T_max  0.7289
_exptl_absorpt_correction_T_min  0.1294
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
;
Walker, N. & Stuart, D (1983) Acta. Cryst. A39, 158-166
;
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.858
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.595
_refine_diff_density_min         -0.508
_refine_diff_density_rms         0.107
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.818
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     294
_refine_ls_number_reflns         4497
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      0.823
_refine_ls_R_factor_all          0.0939
_refine_ls_R_factor_gt           0.0488
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1239
_refine_ls_wR_factor_ref         0.1436
_reflns_number_gt                2752
_reflns_number_total             4497
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt32922d.txt
_cod_data_source_block           pm140
_cod_original_cell_volume        1147.7(9)
_cod_database_code               7021378