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_7021377
_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_formula_moiety         'C80 H112 F8 Hg4 N16 O16, 6(O H2)'
_chemical_formula_sum            'C80 H124 F8 Hg4 N16 O22'
_chemical_formula_weight         2616.28
_chemical_name_systematic
;
?
;
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_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      2.4
_audit_creation_date             2010-05-20T12:15:46-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   58.4476(5)
_cell_length_b                   18.5147(2)
_cell_length_c                   18.2492(2)
_cell_measurement_reflns_used    55037
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      32.6800
_cell_measurement_theta_min      2.5917
_cell_volume                     19748.2(3)
_computing_cell_refinement       'CrysAlis RED (Oxford, 2007)'
_computing_data_collection       'CrysAlis RED (Oxford, 2007)'
_computing_data_reduction        'CrysAlis RED (Oxford, 2007)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_detector_area_resol_mean 10.4498
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Xcalibur Ruby'
_diffrn_measurement_method       '/o oscillation scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0564
_diffrn_reflns_av_unetI/netI     0.0402
_diffrn_reflns_limit_h_max       84
_diffrn_reflns_limit_h_min       -84
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            135863
_diffrn_reflns_theta_full        31
_diffrn_reflns_theta_max         31
_diffrn_reflns_theta_min         2.6
_exptl_absorpt_coefficient_mu    6.288
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.98681
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.76
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             10272
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.23
_refine_diff_density_max         2.418
_refine_diff_density_min         -2.608
_refine_diff_density_rms         0.175
_refine_ls_abs_structure_details 'Flack (1983), 7619 Friedel pairs'
_refine_ls_abs_structure_Flack   0.331(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.204
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     775
_refine_ls_number_reflns         15709
_refine_ls_number_restraints     463
_refine_ls_restrained_S_all      1.212
_refine_ls_R_factor_all          0.0764
_refine_ls_R_factor_gt           0.0537
_refine_ls_shift/su_max          0.024
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0324P)^2^+465.8400P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1126
_refine_ls_wR_factor_ref         0.1195
_reflns_number_gt                12294
_reflns_number_total             15709
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c3dt32922d.txt
_cod_data_source_block           fdd2
_cod_database_code               7021377