Solution and solid state structure and tautomerism of azo coupled enaminone derivatives of benzoylacetone.
Simůnek, Petr; Bertolasi, Valerio; Pesková, Markéta; Machácek, Vladimír; Lycka, Antonín; Organic & biomolecular chemistry 3 (2005) 1217–1226; doi:10.1039/b500173k

data_7150064
_publ_section_title
;
 Solution and solid state structure and tautomerism of azo coupled
 enaminone derivatives of benzoylacetone.
;
_journal_issue                   7
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1217
_journal_page_last               1226
_journal_paper_doi               10.1039/b500173k
_journal_volume                  3
_journal_year                    2005
_chemical_formula_moiety         'C18 H20 N4 O, 1/2(C7 H8)'
_chemical_formula_sum            'C21.5 H24 N4 O'
_chemical_formula_weight         354.45
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 117.694(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   25.8225(3)
_cell_length_b                   10.7493(2)
_cell_length_c                   15.6270(3)
_cell_measurement_reflns_used    5167
_cell_measurement_temperature    150
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      3.6
_cell_volume                     3840.74(12)
_computing_cell_refinement       'Denzo SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997)'
_computing_data_reduction        'Denzo SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP III (Burnett & Johnson, 1996)'
_computing_publication_material
;
SHELXL-97 (Sheldrick, 1997), PARST (Nardelli, 1995)'
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '\f scans and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.039
_diffrn_reflns_av_sigmaI/netI    0.0294
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            23700
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.0
_diffrn_reflns_theta_min         3.6
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.226
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1512
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.147
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     336
_refine_ls_number_reflns         4585
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.147
_refine_ls_R_factor_all          0.0590
_refine_ls_R_factor_gt           0.0519
_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^)+(0.0256P)^2^+4.0016P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1198
_refine_ls_wR_factor_ref         0.1259
_reflns_number_gt                4083
_reflns_number_total             4585
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            b500173k.txt
_cod_data_source_block           (II)
_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 
;
_cod_original_cell_volume        3840.7(1)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_original_formula_sum        'C21.50 H24 N4 O'
_cod_database_code               7150064