<i>N</i>^6^-Substituted 2-amino-4-chloro-5-formylpyrimidines: puckered <i>versus</i> planar pyrimidine rings, and hydrogen-bonded aggregation in zero, one, two and three dimensions
Cobo, Justo; Trilleras, Jorge; Quiroga, Jairo; Marchal, Antonio; Nogueras, Manuel; Low, John N.; Glidewell, Christopher; Acta Crystallographica Section B 64 (2008) 596–609; doi:10.1107/S0108768108019915

data_2104191
_publ_section_title
;
 <i>N</i>^6^-Substituted 2-amino-4-chloro-5-formylpyrimidines: puckered
 <i>versus</i> planar pyrimidine rings, and hydrogen-bonded aggregation
 in zero, one, two and three dimensions
;
_journal_coeditor_code           BM5057
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              596
_journal_page_last               609
_journal_paper_doi               10.1107/S0108768108019915
_journal_volume                  64
_journal_year                    2008
_chemical_formula_moiety         'C12 H17 Cl N4 O'
_chemical_formula_sum            'C12 H17 Cl N4 O'
_chemical_formula_weight         268.75
_chemical_name_systematic
;
 ?
;
_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                82.598(6)
_cell_angle_beta                 82.701(5)
_cell_angle_gamma                88.645(5)
_cell_formula_units_Z            2
_cell_length_a                   8.5722(6)
_cell_length_b                   8.7195(5)
_cell_length_c                   8.7681(7)
_cell_measurement_reflns_used    2950
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      3.12
_cell_volume                     644.63(8)
_computing_cell_refinement       'DIRAX/LSQ (Duisenberg et al., 2000)'
_computing_data_collection       'COLLECT (Hooft, 1999)'
_computing_data_reduction        'EVALCCD (Duisenberg et al., 2003)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL-97 and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement
'OSCAIL (McArdle, 2003) and SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Sir2004 (Burla et al., 2005)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_limit_h_min       -11
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_diffrn_reflns_number            18098
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.12
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.291
_exptl_absorpt_correction_T_max  0.966
_exptl_absorpt_correction_T_min  0.856
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.10 (Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.385
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
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_exptl_crystal_size_mid          0.29
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_refine_ls_number_reflns         2950
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_refine_ls_R_factor_all          0.0364
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_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0351P)^2^+0.3109P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0754
_refine_ls_wR_factor_ref         0.0798
_reflns_number_gt                2650
_reflns_number_total             2950
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bm5057.cif
_cod_data_source_block           IV
_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_enum 1527 2010-12-29 10:47:43Z saulius 

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               2104191