2-Amino-3-(4-methoxybenzylideneamino)butenedinitrile
Wu, Chang-Ju; Zhang, Xia; Zhang, Gui-Qiu; Liu, Lian-Dong; Shi, Jing-Min; Acta Crystallographica Section E 62 (2006) o2571–o2572; doi:10.1107/S160053680601960X

data_2209322
_publ_section_title
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 2-Amino-3-(4-methoxybenzylideneamino)butenedinitrile
;
_journal_coeditor_code           SJ2073
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2571
_journal_page_last               o2572
_journal_paper_doi               10.1107/S160053680601960X
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C12 H10 N4 O'
_chemical_formula_moiety         'C12 H10 N4 O'
_chemical_formula_sum            'C12 H10 N4 O'
_chemical_formula_weight         226.24
_chemical_name_systematic
;
2-Amino-3-(4-methoxybenzylideneamino)butenedinitrile
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.108(2)
_cell_length_b                   25.481(5)
_cell_length_c                   4.0203(8)
_cell_measurement_reflns_used    3181
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.582
_cell_measurement_theta_min      2.4325
_cell_volume                     1137.9(4)
_computing_cell_refinement       'SAINT (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL  (Bruker, 2001)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker SMART APEX CCD'
_diffrn_measurement_method       '\f and \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  0.0470
_diffrn_reflns_av_sigmaI/netI    0.0301
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            6445
_diffrn_reflns_theta_full        26.99
_diffrn_reflns_theta_max         26.99
_diffrn_reflns_theta_min         1.60
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9893
_exptl_absorpt_correction_T_min  0.9693
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.188
_refine_diff_density_min         -0.221
_refine_ls_extinction_coef       0.033(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.312
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     156
_refine_ls_number_reflns         1403
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.311
_refine_ls_R_factor_all          0.0496
_refine_ls_R_factor_gt           0.0476
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0549P)^2^+0.195P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1239
_refine_ls_wR_factor_ref         0.1266
_reflns_number_gt                1361
_reflns_number_total             1403
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj2073.cif
_cod_data_source_block           I
_cod_depositor_comments
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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 

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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2209322
_cod_database_fobs_code          2209322