Structures of 1,1-diphenyl-2-aza-1,3-butadienes. I. 3-Cyano-4-(<i>n</i>-methoxyphenyl)-1,1-diphenyl-2-aza-1,3-butadienes (<i>n</i> = 2, 3, 4)
Angelova, O.; Macíček, J.; Dryanska, V.; Acta Crystallographica Section C 49 (1993) 1813–1818; doi:10.1107/S0108270193003695

data_2001343
_publ_section_title
;
 Structures of 1,1-diphenyl-2-aza-1,3-butadienes. I.
 3-Cyano-4-(<i>n</i>-methoxyphenyl)-1,1-diphenyl-2-aza-1,3-butadienes
 (<i>n</i> = 2, 3, 4)
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1813
_journal_page_last               1818
_journal_paper_doi               10.1107/S0108270193003695
_journal_volume                  49
_journal_year                    1993
_chemical_formula_structural     '(C6 H5)2 C N C (C N) C H (C7 H7 O)'
_chemical_formula_sum            'C23 H18 N2 O'
_chemical_formula_weight         338.41
_chemical_melting_point          .173E-172
_chemical_name_systematic
3-cyano-4-(4-methoxyphenyl)-1,1-diphenyl-2-aza-1,3-butadiene
_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_type_scat_source           'SDP/PDP (Enraf-Nonius, 1985)'
_cell_angle_alpha                116.410(10)
_cell_angle_beta                 103.000(10)
_cell_angle_gamma                91.490(10)
_cell_formula_units_Z            2
_cell_length_a                   9.3190(10)
_cell_length_b                   10.3910(10)
_cell_length_c                   10.9530(10)
_cell_measurement_reflns_used    22
_cell_measurement_temperature    292
_cell_measurement_theta_max      18.90
_cell_measurement_theta_min      18.21
_cell_volume                     915.87(19)
_diffrn_ambient_temperature      292
_diffrn_measurement_device       'Enraf-Nonius CAD-4 diffractometer'
_diffrn_measurement_method       'continuous-scan profiles'
_diffrn_radiation_monochromator  'graphite (perpendicular mode)'
_diffrn_radiation_source         '2kW fine focus Philips tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.014
_diffrn_reflns_number            3827
_diffrn_reflns_reduction_process
'F~obs~ = ( I~raw~/LP )^1/2^, where LP = Lorentz-polarization correction'
_diffrn_reflns_theta_max         26
_diffrn_reflns_theta_min         0
_diffrn_standards_decay_%        0.12
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.07
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.227
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.189
_refine_diff_density_min         -0.172
_refine_ls_goodness_of_fit_obs   1.435
_refine_ls_hydrogen_treatment    ' H-atom parameters refined as riding'
_refine_ls_matrix_type           full
_refine_ls_number_constraints    72
_refine_ls_number_parameters     235
_refine_ls_number_reflns         1969
_refine_ls_R_factor_obs          0.042
_refine_ls_shift/esd_max         0.003
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s^2^(F) + (0.040F)^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.051
_reflns_number_observed          1969
_reflns_number_total             3592
_reflns_observed_criterion       I>3.0\s(I)
_cod_data_source_file            ka1035.cif
_cod_data_source_block           4MOPD
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value '1/[\s^2^(F) + (0.040F)^2^]' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w = 1/[\s^2^(F) +
(0.040F)^2^]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        915.8(4)
_cod_original_formula_sum        'C23 H18 N2 O1'
_cod_database_code               2001343