6-Substituted purines containing thienyl or furyl substituents as artificial nucleobases for metal-mediated base pairing.
Sinha, Indranil; Kösters, Jutta; Hepp, Alexander; Müller, Jens; Dalton transactions (Cambridge, England : 2003) 42 (2013) 16080–16089; doi:10.1039/c3dt51691a

data_7023645
_publ_section_title
;
 6-Substituted purines containing thienyl or furyl substituents as
 artificial nucleobases for metal-mediated base pairing.
;
_journal_issue                   45
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              16080
_journal_page_last               16089
_journal_paper_doi               10.1039/c3dt51691a
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C12 H11 Ag N6 O3 S'
_chemical_formula_weight         427.20
_chemical_name_systematic
; 
 ? 
;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.954(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.652(3)
_cell_length_b                   7.2312(9)
_cell_length_c                   18.795(2)
_cell_measurement_reflns_used    9893
_cell_measurement_temperature    153(2)
_cell_volume                     3067.1(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Photon 100 CMOS-detector'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_monochromator  'Venture Mo multilayer optic'
_diffrn_radiation_source         Microfocus
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0617
_diffrn_reflns_av_sigmaI/netI    0.0468
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            16656
_diffrn_reflns_theta_full        27.95
_diffrn_reflns_theta_max         27.95
_diffrn_reflns_theta_min         2.18
_exptl_absorpt_coefficient_mu    1.474
_exptl_absorpt_correction_T_max  0.9571
_exptl_absorpt_correction_T_min  0.7471
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.850
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1696
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.03
_refine_diff_density_max         2.606
_refine_diff_density_min         -1.257
_refine_diff_density_rms         0.220
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         3675
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0597
_refine_ls_R_factor_gt           0.0507
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1165P)^2^+2.5144P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1531
_refine_ls_wR_factor_ref         0.1648
_reflns_number_gt                3071
_reflns_number_total             3675
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51691a.txt
_cod_data_source_block           mo_is230413_0m_03
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        3067.0(7)
_cod_original_sg_symbol_H-M      'C2/c  '
_cod_database_code               7023645