Structure and tautomerism of azo coupling products from N-alkylenaminones derived from acetylacetone and benzoylacetone in solid phase and in solution
Petr Šimůnek; Markéta Svobodová; Valerio Bertolasi; Loretta Pretto; Antonín Lyčka; Vladimír Macháček; New Journal of Chemistry 31 (2007) 429–; doi:10.1039/b613346k

data_7052087
_publ_section_title
;
 Structure and tautomerism of azo coupling products from
 N-alkylenaminones derived from acetylacetone and benzoylacetone in
 solid phase and in solution
;
_journal_issue                   3
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              429
_journal_paper_doi               10.1039/b613346k
_journal_volume                  31
_journal_year                    2007
_chemical_formula_moiety         'C21 H25 N3 O'
_chemical_formula_sum            'C21 H25 N3 O'
_chemical_formula_weight         335.44
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5205(2)
_cell_length_b                   12.6244(3)
_cell_length_c                   18.1441(4)
_cell_measurement_reflns_used    8647
_cell_measurement_temperature    295
_cell_measurement_theta_max      27.00
_cell_measurement_theta_min      3.93
_cell_volume                     1951.69(8)
_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    'ORTEPIII (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      295
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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     0.71073
_diffrn_reflns_av_R_equivalents  0.0360
_diffrn_reflns_av_sigmaI/netI    0.0374
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            15185
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         3.93
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.142
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.152
_refine_diff_density_min         -0.157
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.4(17)
_refine_ls_extinction_coef       0.095(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     274
_refine_ls_number_reflns         4208
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0605
_refine_ls_R_factor_gt           0.0440
_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^)+(0.0740P)^2^+0.0839P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1106
_refine_ls_wR_factor_ref         0.1213
_reflns_number_gt                3301
_reflns_number_total             4208
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            b613346k.txt
_cod_data_source_block           (9)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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_database_code               7052087