Benzylation and nitrosation of 4-amino-2-(methylsulfanyl)pyrimidin-6(1<i>H</i>)-one: two <i>P</i>2~1~/<i>c</i> polymorphs of 4-amino-1-benzyl-2-(methylsulfanyl)pyrimidin-6(1<i>H</i>)-one with <i>Z</i>'=1 and 2, 4-amino-6-benzyloxy-2-(methylsulfanyl)pyrimidine and 4-amino-1-benzyl-2-(methylsulfanyl)-5-nitrosopyrimidin-6(1<i>H</i>)-one all give different hydrogen-bonded supramolecular structures
Glidewell, Christopher; Low, John N.; Marchal, Antonio; Quesada, Antonio; Acta Crystallographica Section C 59 (2003) o454–o460; doi:10.1107/S0108270103013465

data_2013466
_publ_section_title
;
 Benzylation and nitrosation of
 4-amino-2-(methylsulfanyl)pyrimidin-6(1<i>H</i>)-one: two
 <i>P</i>2~1~/<i>c</i> polymorphs of
 4-amino-1-benzyl-2-(methylsulfanyl)pyrimidin-6(1<i>H</i>)-one with
 <i>Z</i>'=1 and 2, 4-amino-6-benzyloxy-2-(methylsulfanyl)pyrimidine
 and
 4-amino-1-benzyl-2-(methylsulfanyl)-5-nitrosopyrimidin-6(1<i>H</i>)-one
 all give different hydrogen-bonded supramolecular structures
;
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o454
_journal_page_last               o460
_journal_paper_doi               10.1107/S0108270103013465
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C12 H12 N4 O2 S'
_chemical_formula_moiety         'C12 H12 N4 O2 S'
_chemical_formula_sum            'C12 H12 N4 O2 S'
_chemical_formula_weight         276.33
_chemical_name_systematic
;
4-Amino-1-benzyl-2-(methylsulfanyl)-5-nitrosopyrimidin-6(1H)-one
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                109.6510(13)
_cell_angle_beta                 96.4203(14)
_cell_angle_gamma                93.7181(14)
_cell_formula_units_Z            4
_cell_length_a                   10.5035(3)
_cell_length_b                   10.8741(3)
_cell_length_c                   11.8261(4)
_cell_measurement_reflns_used    4417
_cell_measurement_temperature    120.0(10)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      2.95
_cell_volume                     1256.49(7)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'KappaCCD Server Software (Nonius, 1997)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material
'SHELXL97 (Sheldrick, 1997) and  PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120.0(10)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.094
_diffrn_reflns_av_sigmaI/netI    0.0530
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            24784
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.95
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.261
_exptl_absorpt_correction_T_max  0.991
_exptl_absorpt_correction_T_min  0.920
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO-SMN (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.461
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.210
_refine_diff_density_min         -0.305
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     345
_refine_ls_number_reflns         4417
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0609
_refine_ls_R_factor_gt           0.0437
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0461P)^2^+0.5677P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0986
_refine_ls_wR_factor_ref         0.1071
_reflns_number_gt                3498
_reflns_number_total             4417
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            gg1172.cif
_cod_data_source_block           III
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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 
;
_cod_database_code               2013466
_cod_database_fobs_code          2013466