Molecular Recognition of Protonated Cytosine Ribbons by Metal–Oxalato Frameworks
García-Terán, Juan P.; Castillo, Oscar; Luque, Antonio; García-Couceiro, Urko; Beobide, Garikoitz; Román, Pascual; Crystal Growth & Design 7 (2007) 2594–; doi:10.1021/cg0705916

data_4504436
_publ_contact_author
;
 Oscar Castillo. Departamento de Quimica Inorganica. Facultad de Ciencia
 y Tecnologia. Universidad del Pais Vasco,  Apdo. 644, E-48080 
 Bilbao, Spain
;
_publ_section_title
;
 Molecular Recognition of Protonated Cytosine Ribbons by Metal--Oxalato
 Frameworks
;
_journal_issue                   12
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2594
_journal_paper_doi               10.1021/cg0705916
_journal_volume                  7
_journal_year                    2007
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C4 H4 O10 Zn, 2(C4 H6 N3 O)'
_chemical_formula_structural     'C4 H4 O10 Zn, 2(C4 H6 N3 O)'
_chemical_formula_sum            'C12 H16 N6 O12 Zn'
_chemical_formula_weight         501.68
_chemical_name_systematic
;
cytosinium diaquabis(oxalato)zincate(II)
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 107.18(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.528(2)
_cell_length_b                   6.962(1)
_cell_length_c                   13.565(2)
_cell_measurement_reflns_used    5010
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      30.20
_cell_measurement_theta_min      3.14
_cell_volume                     859.7(3)
_computing_cell_refinement       'CrysAlis CCD (Oxford Diffraction, 2003)'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2003)'
_computing_data_reduction        'CrysAlis RED (Oxford Diffraction, 2003)'
_computing_molecular_graphics    'Ortep-3 (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Sir92 (Altamore et al., 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  Xcalibur
_diffrn_measurement_method       \w
_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  0.0802
_diffrn_reflns_av_sigmaI/netI    0.1725
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            5010
_diffrn_reflns_theta_full        30.20
_diffrn_reflns_theta_max         30.20
_diffrn_reflns_theta_min         3.14
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.516
_exptl_absorpt_correction_T_max  0.936
_exptl_absorpt_correction_T_min  0.846
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.170.32 (release 06.06.2003 CrysAlis170 VC++)
(compiled Jun  6 2003,13:53:32)
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by R.C. Clark & J.S. Reid.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.938
_exptl_crystal_density_meas      1.93(1)
_exptl_crystal_density_method    flotation
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.505
_refine_diff_density_min         -0.404
_refine_diff_density_rms         0.120
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.978
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     142
_refine_ls_number_reflns         2548
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.978
_refine_ls_R_factor_all          0.1134
_refine_ls_R_factor_gt           0.0426
_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/[\s^2^(Fo^2^)+(0.0586P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1156
_refine_ls_wR_factor_ref         0.1243
_reflns_number_gt                1037
_reflns_number_total             2548
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0705916.cif
_cod_data_source_block           compound4
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4504436