RNAs' uracil quartet model with a non-essential metal ion
Miquel Barcelo-Oliver; Carolina Estarellas; Angel Terron; Angel Garcia-Raso; Antonio Frontera; Chem.Commun. 47 (2011) 4646–; doi:10.1039/c1cc10376h

data_7106261
_publ_section_title
;
 RNAs' uracil quartet model with a non-essential metal ion
;
_journal_name_full               Chem.Commun.
_journal_page_first              4646
_journal_paper_doi               10.1039/c1cc10376h
_journal_volume                  47
_journal_year                    2011
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C40 H64 Ag1 N9 O11'
_chemical_formula_sum            'C40 H64 Ag N9 O11'
_chemical_formula_weight         954.87
_chemical_name_common            (Ag(NO3)(N1-hexyluracil-kappaO4)4)
_chemical_name_systematic
;
[Ag(NO3)(N1-hexyluracil-\kO4)4]
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-I 2ya'
_symmetry_space_group_name_H-M   'I 1 2/a 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      2.4
_audit_creation_date             2011-02-23T20:42:57-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90.390(7)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   19.2793(13)
_cell_length_b                   25.2623(12)
_cell_length_c                   19.4304(19)
_cell_measurement_reflns_used    8470
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      29.4362
_cell_measurement_theta_min      2.4811
_cell_measurement_wavelength     0.71073
_cell_volume                     9463.2(12)
_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 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      183(2)
_diffrn_detector_area_resol_mean 10.4498
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur Ruby'
_diffrn_measurement_method       '/o oscillation scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0818
_diffrn_reflns_av_unetI/netI     0.0837
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            36867
_diffrn_reflns_theta_full        26.02
_diffrn_reflns_theta_max         26.02
_diffrn_reflns_theta_min         2.49
_exptl_absorpt_coefficient_mu    0.49
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.890
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov 6 2009,16:24:50)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.34
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4016
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.708
_refine_diff_density_min         -0.559
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.95
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     741
_refine_ls_number_reflns         9286
_refine_ls_number_restraints     699
_refine_ls_restrained_S_all      0.993
_refine_ls_R_factor_all          0.1031
_refine_ls_R_factor_gt           0.0502
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0614P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1169
_refine_ls_wR_factor_ref         0.1293
_reflns_number_gt                5285
_reflns_number_total             9286
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c1cc10376h.txt
_cod_data_source_block           mb280410
_cod_original_sg_symbol_H-M      'I 2/a'
_cod_original_formula_sum        'C40 H64 Ag1 N9 O11'
_cod_database_code               7106261