Intermolecular N-H···O Hydrogen Bonding Assisted by Resonance. II. Self Assembly of Hydrogen-Bonded Secondary Enaminones in Supramolecular Catemers
Bertolasi, V.; Gilli, P.; Ferretti, V.; Gilli, G.; Acta Crystallographica Section B 54 (1998) 50–65; doi:10.1107/S0108768197008677

data_2105609
_publ_section_title
;
 Intermolecular N-H&#x00B7;&#x00B7;&#x00B7;O Hydrogen Bonding Assisted by
 Resonance. II. Self Assembly of Hydrogen-Bonded Secondary Enaminones in
 Supramolecular Catemers
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              50
_journal_page_last               65
_journal_paper_doi               10.1107/S0108768197008677
_journal_volume                  54
_journal_year                    1998
_chemical_formula_analytical     'C18 H14 Cl2 N2 O1 '
_chemical_formula_sum            'C18 H14 Cl2 N2 O'
_chemical_formula_weight         345.23
_chemical_name_systematic
;
1-(4-Chlorophenyl)-4-(4-chlorophenylamino)-6-methyl-2-pyridone
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90.00000
_cell_angle_beta                 90.00000
_cell_angle_gamma                90.00000
_cell_formula_units_Z            8
_cell_length_a                   14.244(2)
_cell_length_b                   9.6450(10)
_cell_length_c                   23.711(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    295
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_cell_measurement_theta_min      10
_cell_volume                     3257.5(7)
_diffrn_ambient_temperature      295
_diffrn_measurement_device_type  'Enraf-Nonius CAD4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine focus sealed tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3542
_diffrn_reflns_reduction_process ' ......'
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_diffrn_reflns_theta_min         2
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.4036
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.4079
_exptl_crystal_description
;
prismatic
;
_exptl_crystal_F_000             1424.0
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_exptl_crystal_size_mid          0.25
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_refine_diff_density_max         0.26
_refine_diff_density_min         -0.21
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    'H atoms isotropic'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         1837
_refine_ls_R_factor_gt           0.041
_refine_ls_shift/su_max          0.02
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 4F^2^/[\s^2^(I) + (0.03F^2^)^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.047
_reflns_number_gt                1837
_reflns_number_total             3542
_reflns_threshold_expression     I>3\s(I)
_cod_data_source_file            na0080.cif
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_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w = 4F^2^/[\s^2^(I) +
(0.03F^2^)^2^]' was changed to 'calc'. New tag
'_refine_ls_weighting_details' was created. The value of the new tag
was set to 'w = 4F^2^/[\s^2^(I) + (0.03F^2^)^2^]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_formula_sum        'C18 H14 Cl2 N2 O1 '
_cod_database_code               2105609