3-Nitroso-2-phenylimidazo[1,2-<i>a</i>]pyrimidine
Anaflous, Abderahmane; Benchat, Nour-Eddine; Ben-Hadda, Taibi; El Bali, Brahim; Bolte, Michael; Acta Crystallographica Section E 60 (2004) o1131–o1132; doi:10.1107/S1600536804011699

data_2203908
_publ_section_title
;
 3-Nitroso-2-phenylimidazo[1,2-<i>a</i>]pyrimidine
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1131
_journal_page_last               o1132
_journal_paper_doi               10.1107/S1600536804011699
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C12 H8 N4 O'
_chemical_formula_moiety         'C12 H8 N4 O'
_chemical_formula_sum            'C12 H8 N4 O'
_chemical_formula_weight         224.22
_chemical_name_systematic
;
3-Nitroso-2-phenylimidazo[1,2-a]pyrimidine
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 102.755(18)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0734(16)
_cell_length_b                   9.2564(16)
_cell_length_c                   15.704(4)
_cell_measurement_reflns_used    3097
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.4
_cell_measurement_theta_min      3.5
_cell_volume                     1002.8(4)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2001)'
_computing_data_reduction        X-AREA
_computing_molecular_graphics
'XP in SHELXTL-Plus (Sheldrick, 1991) and PLATON (Spek, 1990)'
_computing_publication_material  'SHELXL97 and PLATON'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997) '
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990) '
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Stoe IPDS-II two-circle'
_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    0.0937
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            4715
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.48
_diffrn_reflns_theta_min         3.69
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.485
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             464
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.198
_refine_diff_density_min         -0.235
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.875
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         1832
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.875
_refine_ls_R_factor_all          0.0981
_refine_ls_R_factor_gt           0.0541
_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^)+(0.0722P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1265
_refine_ls_wR_factor_ref         0.1401
_reflns_number_gt                1051
_reflns_number_total             1832
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh6216.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.

'_geom_torsion_publ_flag' value 'Y' changed to 'y' 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.

'_geom_torsion_publ_flag' value 'Y' changed to 'y'
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_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2203908
_cod_database_fobs_code          2203908