7-Deaza-2'-deoxy-7-propynylguanosine
Seela, Frank; Shaikh, Khalil; Eickmeier, Henning; Acta Crystallographica Section C 60 (2004) o489–o491; doi:10.1107/S0108270104011552

data_2014265
_publ_section_title
;
 7-Deaza-2'-deoxy-7-propynylguanosine
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o489
_journal_page_last               o491
_journal_paper_doi               10.1107/S0108270104011552
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C14 H16 N4 O4'
_chemical_formula_moiety         'C14 H16 N4 O4'
_chemical_formula_sum            'C14 H16 N4 O4'
_chemical_formula_weight         304.31
_chemical_name_systematic
;
7-Deaza-7-(propynyl)-2'-deoxyguanosine
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 100.49(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.799(2)
_cell_length_b                   13.601(3)
_cell_length_c                   11.014(3)
_cell_measurement_reflns_used    36
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      15.14
_cell_measurement_theta_min      2.99
_cell_volume                     706.9(4)
_computing_cell_refinement       XSCANS
_computing_data_collection       'XSCANS (Siemens, 1996)'
_computing_data_reduction        'SHELXTL (Sheldrick, 1997)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  'SHELXTL and PLATON (Spek, 2003)'
_computing_structure_refinement  SHELXTL
_computing_structure_solution    SHELXTL
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       2\q/\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  0.0399
_diffrn_reflns_av_sigmaI/netI    0.0760
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       1
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            2562
_diffrn_reflns_theta_full        27.97
_diffrn_reflns_theta_max         27.97
_diffrn_reflns_theta_min         1.88
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.430
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             320
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.310
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     206
_refine_ls_number_reflns         1772
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.1012
_refine_ls_R_factor_gt           0.0629
_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^)+(0.0971P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1503
_refine_ls_wR_factor_ref         0.1721
_reflns_number_gt                1190
_reflns_number_total             1772
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sx1139.cif
_cod_data_source_block           I
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               2014265
_cod_database_fobs_code          2014265